./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e328965cea0bb66eb9fefef2406463fafd513fe2a95976e689a71eb96c010564 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 16:02:05,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:02:05,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:02:05,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:02:05,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:02:05,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:02:05,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:02:05,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:02:05,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:02:05,957 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:02:05,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:02:05,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:02:05,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:02:05,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:02:05,961 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:02:05,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:02:05,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:02:05,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:02:05,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:02:05,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:02:05,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:02:05,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:02:05,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:02:05,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:02:05,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:02:05,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:02:05,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:02:05,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:02:05,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:02:05,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:02:05,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:02:05,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:02:05,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:02:05,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:02:05,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:02:05,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:02:05,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:02:05,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:02:05,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:02:05,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:02:05,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:02:05,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:02:05,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e328965cea0bb66eb9fefef2406463fafd513fe2a95976e689a71eb96c010564 [2024-11-08 16:02:06,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:02:06,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:02:06,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:02:06,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:02:06,272 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:02:06,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 16:02:07,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:02:07,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:02:07,936 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 16:02:07,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c84258c2/e8ffb29a13f24b88af6f4db472cddb56/FLAGfd1257cd7 [2024-11-08 16:02:07,959 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c84258c2/e8ffb29a13f24b88af6f4db472cddb56 [2024-11-08 16:02:07,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:02:07,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:02:07,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:02:07,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:02:07,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:02:07,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:02:07" (1/1) ... [2024-11-08 16:02:07,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ce20fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:07, skipping insertion in model container [2024-11-08 16:02:07,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:02:07" (1/1) ... [2024-11-08 16:02:08,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:02:08,301 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6636,6649] [2024-11-08 16:02:08,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:02:08,371 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:02:08,417 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6636,6649] [2024-11-08 16:02:08,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:02:08,474 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:02:08,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08 WrapperNode [2024-11-08 16:02:08,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:02:08,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:02:08,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:02:08,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:02:08,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,526 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 559 [2024-11-08 16:02:08,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:02:08,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:02:08,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:02:08,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:02:08,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,562 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]. [2024-11-08 16:02:08,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:02:08,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:02:08,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:02:08,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:02:08,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (1/1) ... [2024-11-08 16:02:08,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:02:08,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:02:08,635 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) [2024-11-08 16:02:08,638 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 [2024-11-08 16:02:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:02:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:02:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:02:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:02:08,797 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:02:08,801 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:02:09,330 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-08 16:02:09,331 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:02:09,348 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:02:09,350 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:02:09,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:02:09 BoogieIcfgContainer [2024-11-08 16:02:09,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:02:09,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:02:09,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:02:09,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:02:09,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:02:07" (1/3) ... [2024-11-08 16:02:09,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5144812c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:02:09, skipping insertion in model container [2024-11-08 16:02:09,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:02:08" (2/3) ... [2024-11-08 16:02:09,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5144812c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:02:09, skipping insertion in model container [2024-11-08 16:02:09,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:02:09" (3/3) ... [2024-11-08 16:02:09,361 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 16:02:09,376 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:02:09,376 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:02:09,447 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:02:09,453 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;@56f9fe8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:02:09,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:02:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 121 states have (on average 1.743801652892562) internal successors, (211), 122 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:09,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 16:02:09,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:09,465 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] [2024-11-08 16:02:09,466 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:09,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:09,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1503533793, now seen corresponding path program 1 times [2024-11-08 16:02:09,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:09,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690918360] [2024-11-08 16:02:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:09,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:10,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:10,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690918360] [2024-11-08 16:02:10,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690918360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:10,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:10,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127398493] [2024-11-08 16:02:10,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:10,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:02:10,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:10,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:02:10,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:02:10,170 INFO L87 Difference]: Start difference. First operand has 123 states, 121 states have (on average 1.743801652892562) internal successors, (211), 122 states have internal predecessors, (211), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:10,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:10,488 INFO L93 Difference]: Finished difference Result 588 states and 943 transitions. [2024-11-08 16:02:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:02:10,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-08 16:02:10,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:10,508 INFO L225 Difference]: With dead ends: 588 [2024-11-08 16:02:10,509 INFO L226 Difference]: Without dead ends: 518 [2024-11-08 16:02:10,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:02:10,515 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 1055 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:10,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 1117 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:02:10,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-08 16:02:10,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 186. [2024-11-08 16:02:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.4594594594594594) internal successors, (270), 185 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 270 transitions. [2024-11-08 16:02:10,572 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 270 transitions. Word has length 61 [2024-11-08 16:02:10,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:10,573 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 270 transitions. [2024-11-08 16:02:10,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:10,573 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 270 transitions. [2024-11-08 16:02:10,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:02:10,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:10,575 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] [2024-11-08 16:02:10,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:02:10,576 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:10,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:10,577 INFO L85 PathProgramCache]: Analyzing trace with hash -886934908, now seen corresponding path program 1 times [2024-11-08 16:02:10,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:10,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590344472] [2024-11-08 16:02:10,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:10,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:10,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:10,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590344472] [2024-11-08 16:02:10,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590344472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:10,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:10,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:10,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879726313] [2024-11-08 16:02:10,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:10,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:02:10,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:10,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:02:10,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:02:10,819 INFO L87 Difference]: Start difference. First operand 186 states and 270 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:10,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:10,937 INFO L93 Difference]: Finished difference Result 664 states and 1021 transitions. [2024-11-08 16:02:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:02:10,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 16:02:10,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:10,941 INFO L225 Difference]: With dead ends: 664 [2024-11-08 16:02:10,943 INFO L226 Difference]: Without dead ends: 562 [2024-11-08 16:02:10,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:02:10,945 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 607 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:10,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 760 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:10,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-08 16:02:10,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 292. [2024-11-08 16:02:10,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.5051546391752577) internal successors, (438), 291 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:10,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 438 transitions. [2024-11-08 16:02:10,972 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 438 transitions. Word has length 63 [2024-11-08 16:02:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:10,973 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 438 transitions. [2024-11-08 16:02:10,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:10,974 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 438 transitions. [2024-11-08 16:02:10,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:02:10,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:10,977 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] [2024-11-08 16:02:10,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:02:10,977 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:10,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash 497894544, now seen corresponding path program 1 times [2024-11-08 16:02:10,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:10,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974091244] [2024-11-08 16:02:10,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:10,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:11,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:11,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974091244] [2024-11-08 16:02:11,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974091244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:11,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:11,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:11,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036352280] [2024-11-08 16:02:11,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:11,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:02:11,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:11,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:02:11,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:02:11,232 INFO L87 Difference]: Start difference. First operand 292 states and 438 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:11,345 INFO L93 Difference]: Finished difference Result 765 states and 1181 transitions. [2024-11-08 16:02:11,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:02:11,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 16:02:11,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:11,351 INFO L225 Difference]: With dead ends: 765 [2024-11-08 16:02:11,351 INFO L226 Difference]: Without dead ends: 663 [2024-11-08 16:02:11,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:02:11,353 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 686 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:11,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 748 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:11,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-08 16:02:11,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 443. [2024-11-08 16:02:11,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.5316742081447965) internal successors, (677), 442 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 677 transitions. [2024-11-08 16:02:11,379 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 677 transitions. Word has length 63 [2024-11-08 16:02:11,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:11,379 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 677 transitions. [2024-11-08 16:02:11,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,380 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 677 transitions. [2024-11-08 16:02:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:02:11,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:11,382 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] [2024-11-08 16:02:11,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:02:11,382 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:11,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:11,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1329115962, now seen corresponding path program 1 times [2024-11-08 16:02:11,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:11,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026101060] [2024-11-08 16:02:11,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:11,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:11,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:11,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:11,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026101060] [2024-11-08 16:02:11,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026101060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:11,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:11,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:02:11,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330917267] [2024-11-08 16:02:11,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:11,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:02:11,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:11,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:02:11,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:02:11,469 INFO L87 Difference]: Start difference. First operand 443 states and 677 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:11,501 INFO L93 Difference]: Finished difference Result 1102 states and 1714 transitions. [2024-11-08 16:02:11,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:02:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 16:02:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:11,505 INFO L225 Difference]: With dead ends: 1102 [2024-11-08 16:02:11,505 INFO L226 Difference]: Without dead ends: 750 [2024-11-08 16:02:11,508 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 [2024-11-08 16:02:11,511 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 68 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:11,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 380 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:02:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-08 16:02:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 734. [2024-11-08 16:02:11,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 1.5279672578444747) internal successors, (1120), 733 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1120 transitions. [2024-11-08 16:02:11,530 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1120 transitions. Word has length 63 [2024-11-08 16:02:11,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:11,531 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 1120 transitions. [2024-11-08 16:02:11,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1120 transitions. [2024-11-08 16:02:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:02:11,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:11,535 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] [2024-11-08 16:02:11,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:02:11,536 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:11,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:11,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1501695225, now seen corresponding path program 1 times [2024-11-08 16:02:11,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:11,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069269357] [2024-11-08 16:02:11,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:11,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:11,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:11,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:11,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069269357] [2024-11-08 16:02:11,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069269357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:11,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:11,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:11,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476108474] [2024-11-08 16:02:11,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:11,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:02:11,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:11,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:02:11,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:02:11,823 INFO L87 Difference]: Start difference. First operand 734 states and 1120 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:11,960 INFO L93 Difference]: Finished difference Result 1379 states and 2122 transitions. [2024-11-08 16:02:11,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:02:11,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 16:02:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:11,964 INFO L225 Difference]: With dead ends: 1379 [2024-11-08 16:02:11,964 INFO L226 Difference]: Without dead ends: 736 [2024-11-08 16:02:11,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:02:11,966 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 396 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:11,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 526 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:11,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-08 16:02:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 734. [2024-11-08 16:02:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 1.5225102319236017) internal successors, (1116), 733 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1116 transitions. [2024-11-08 16:02:11,986 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1116 transitions. Word has length 63 [2024-11-08 16:02:11,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:11,987 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 1116 transitions. [2024-11-08 16:02:11,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:11,988 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1116 transitions. [2024-11-08 16:02:11,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:02:11,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:11,988 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] [2024-11-08 16:02:11,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:02:11,989 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:11,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1505725276, now seen corresponding path program 1 times [2024-11-08 16:02:11,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:11,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676819797] [2024-11-08 16:02:11,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:12,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:12,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:12,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676819797] [2024-11-08 16:02:12,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676819797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:12,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:12,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:12,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288356136] [2024-11-08 16:02:12,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:12,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:02:12,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:12,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:02:12,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:02:12,145 INFO L87 Difference]: Start difference. First operand 734 states and 1116 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:12,281 INFO L93 Difference]: Finished difference Result 1494 states and 2292 transitions. [2024-11-08 16:02:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:02:12,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 16:02:12,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:12,287 INFO L225 Difference]: With dead ends: 1494 [2024-11-08 16:02:12,287 INFO L226 Difference]: Without dead ends: 1309 [2024-11-08 16:02:12,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:02:12,289 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 652 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:12,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 1062 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:12,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2024-11-08 16:02:12,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 928. [2024-11-08 16:02:12,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 927 states have (on average 1.528586839266451) internal successors, (1417), 927 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1417 transitions. [2024-11-08 16:02:12,319 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1417 transitions. Word has length 63 [2024-11-08 16:02:12,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:12,320 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1417 transitions. [2024-11-08 16:02:12,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1417 transitions. [2024-11-08 16:02:12,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:02:12,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:12,321 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] [2024-11-08 16:02:12,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:02:12,322 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:12,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:12,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1830608528, now seen corresponding path program 1 times [2024-11-08 16:02:12,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:12,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063129676] [2024-11-08 16:02:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:12,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:12,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063129676] [2024-11-08 16:02:12,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063129676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:12,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:12,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:12,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123009755] [2024-11-08 16:02:12,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:12,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:02:12,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:12,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:02:12,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:02:12,475 INFO L87 Difference]: Start difference. First operand 928 states and 1417 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:12,579 INFO L93 Difference]: Finished difference Result 1688 states and 2593 transitions. [2024-11-08 16:02:12,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:02:12,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 16:02:12,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:12,585 INFO L225 Difference]: With dead ends: 1688 [2024-11-08 16:02:12,585 INFO L226 Difference]: Without dead ends: 1503 [2024-11-08 16:02:12,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:02:12,587 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 662 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:12,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 763 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-08 16:02:12,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1122. [2024-11-08 16:02:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.5325602140945584) internal successors, (1718), 1121 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1718 transitions. [2024-11-08 16:02:12,620 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1718 transitions. Word has length 63 [2024-11-08 16:02:12,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:12,620 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1718 transitions. [2024-11-08 16:02:12,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1718 transitions. [2024-11-08 16:02:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 16:02:12,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:12,622 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] [2024-11-08 16:02:12,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:02:12,622 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:12,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:12,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1584928427, now seen corresponding path program 1 times [2024-11-08 16:02:12,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:12,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406441585] [2024-11-08 16:02:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:12,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:12,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:12,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406441585] [2024-11-08 16:02:12,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406441585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:12,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:12,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:02:12,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652747484] [2024-11-08 16:02:12,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:12,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:02:12,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:12,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:02:12,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:02:12,762 INFO L87 Difference]: Start difference. First operand 1122 states and 1718 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:12,882 INFO L93 Difference]: Finished difference Result 2215 states and 3406 transitions. [2024-11-08 16:02:12,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:02:12,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-08 16:02:12,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:12,887 INFO L225 Difference]: With dead ends: 2215 [2024-11-08 16:02:12,887 INFO L226 Difference]: Without dead ends: 1122 [2024-11-08 16:02:12,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:02:12,889 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 455 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:12,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 91 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-08 16:02:12,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2024-11-08 16:02:12,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.512042818911686) internal successors, (1695), 1121 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1695 transitions. [2024-11-08 16:02:12,915 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1695 transitions. Word has length 64 [2024-11-08 16:02:12,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:12,915 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1695 transitions. [2024-11-08 16:02:12,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1695 transitions. [2024-11-08 16:02:12,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 16:02:12,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:12,917 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] [2024-11-08 16:02:12,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:02:12,917 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:12,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:12,918 INFO L85 PathProgramCache]: Analyzing trace with hash -747879712, now seen corresponding path program 1 times [2024-11-08 16:02:12,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538659410] [2024-11-08 16:02:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:12,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:13,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:13,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538659410] [2024-11-08 16:02:13,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538659410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:13,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:13,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:02:13,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075036102] [2024-11-08 16:02:13,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:13,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:02:13,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:13,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:02:13,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:02:13,011 INFO L87 Difference]: Start difference. First operand 1122 states and 1695 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:13,130 INFO L93 Difference]: Finished difference Result 2203 states and 3346 transitions. [2024-11-08 16:02:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:02:13,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-08 16:02:13,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:13,136 INFO L225 Difference]: With dead ends: 2203 [2024-11-08 16:02:13,136 INFO L226 Difference]: Without dead ends: 1122 [2024-11-08 16:02:13,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:02:13,140 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 415 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:13,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 115 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:13,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-08 16:02:13,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2024-11-08 16:02:13,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.4915254237288136) internal successors, (1672), 1121 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1672 transitions. [2024-11-08 16:02:13,167 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1672 transitions. Word has length 65 [2024-11-08 16:02:13,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:13,167 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1672 transitions. [2024-11-08 16:02:13,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1672 transitions. [2024-11-08 16:02:13,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 16:02:13,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:13,169 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:13,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:02:13,169 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:13,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:13,171 INFO L85 PathProgramCache]: Analyzing trace with hash 431205441, now seen corresponding path program 1 times [2024-11-08 16:02:13,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:13,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91196743] [2024-11-08 16:02:13,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:13,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:13,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:13,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91196743] [2024-11-08 16:02:13,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91196743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:13,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:13,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:02:13,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51968374] [2024-11-08 16:02:13,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:13,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:02:13,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:02:13,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:02:13,276 INFO L87 Difference]: Start difference. First operand 1122 states and 1672 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:13,380 INFO L93 Difference]: Finished difference Result 2211 states and 3310 transitions. [2024-11-08 16:02:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:02:13,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-08 16:02:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:13,385 INFO L225 Difference]: With dead ends: 2211 [2024-11-08 16:02:13,385 INFO L226 Difference]: Without dead ends: 1122 [2024-11-08 16:02:13,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:02:13,387 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 431 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:13,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 99 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:13,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-08 16:02:13,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2024-11-08 16:02:13,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.471008028545941) internal successors, (1649), 1121 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1649 transitions. [2024-11-08 16:02:13,422 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1649 transitions. Word has length 66 [2024-11-08 16:02:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:13,423 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1649 transitions. [2024-11-08 16:02:13,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1649 transitions. [2024-11-08 16:02:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 16:02:13,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:13,424 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] [2024-11-08 16:02:13,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:02:13,424 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:13,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:13,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1430381312, now seen corresponding path program 1 times [2024-11-08 16:02:13,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:13,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805617642] [2024-11-08 16:02:13,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:13,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:13,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:13,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805617642] [2024-11-08 16:02:13,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805617642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:13,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:13,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:02:13,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066487317] [2024-11-08 16:02:13,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:13,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:02:13,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:13,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:02:13,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:02:13,508 INFO L87 Difference]: Start difference. First operand 1122 states and 1649 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:13,607 INFO L93 Difference]: Finished difference Result 2207 states and 3260 transitions. [2024-11-08 16:02:13,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:02:13,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-08 16:02:13,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:13,612 INFO L225 Difference]: With dead ends: 2207 [2024-11-08 16:02:13,612 INFO L226 Difference]: Without dead ends: 1122 [2024-11-08 16:02:13,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:02:13,614 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 413 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:13,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 107 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:02:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-08 16:02:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2024-11-08 16:02:13,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.4504906333630687) internal successors, (1626), 1121 states have internal predecessors, (1626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1626 transitions. [2024-11-08 16:02:13,636 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1626 transitions. Word has length 67 [2024-11-08 16:02:13,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:13,636 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1626 transitions. [2024-11-08 16:02:13,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1626 transitions. [2024-11-08 16:02:13,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 16:02:13,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:13,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:13,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:02:13,637 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:13,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:13,638 INFO L85 PathProgramCache]: Analyzing trace with hash -654863315, now seen corresponding path program 1 times [2024-11-08 16:02:13,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:13,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530204501] [2024-11-08 16:02:13,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:13,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:13,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:13,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530204501] [2024-11-08 16:02:13,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530204501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:13,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:13,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:02:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394905905] [2024-11-08 16:02:13,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:13,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:02:13,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:13,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:02:13,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:02:13,990 INFO L87 Difference]: Start difference. First operand 1122 states and 1626 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:14,352 INFO L93 Difference]: Finished difference Result 3185 states and 4646 transitions. [2024-11-08 16:02:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:02:14,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 16:02:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:14,359 INFO L225 Difference]: With dead ends: 3185 [2024-11-08 16:02:14,359 INFO L226 Difference]: Without dead ends: 2136 [2024-11-08 16:02:14,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:02:14,361 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 654 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:14,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 463 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:02:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2024-11-08 16:02:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1122. [2024-11-08 16:02:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.449598572702944) internal successors, (1625), 1121 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:14,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1625 transitions. [2024-11-08 16:02:14,392 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1625 transitions. Word has length 68 [2024-11-08 16:02:14,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:14,393 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1625 transitions. [2024-11-08 16:02:14,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:14,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1625 transitions. [2024-11-08 16:02:14,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:02:14,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:14,394 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] [2024-11-08 16:02:14,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:02:14,395 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:14,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:14,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1389072061, now seen corresponding path program 1 times [2024-11-08 16:02:14,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:14,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771742613] [2024-11-08 16:02:14,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:14,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:14,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:14,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771742613] [2024-11-08 16:02:14,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771742613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:14,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:14,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:02:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107341606] [2024-11-08 16:02:14,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:14,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:02:14,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:14,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:02:14,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:02:14,872 INFO L87 Difference]: Start difference. First operand 1122 states and 1625 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:15,434 INFO L93 Difference]: Finished difference Result 3285 states and 4748 transitions. [2024-11-08 16:02:15,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 16:02:15,434 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-08 16:02:15,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:15,441 INFO L225 Difference]: With dead ends: 3285 [2024-11-08 16:02:15,442 INFO L226 Difference]: Without dead ends: 2272 [2024-11-08 16:02:15,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:02:15,444 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 1008 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:15,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 504 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:02:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2024-11-08 16:02:15,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 1144. [2024-11-08 16:02:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 1.4461942257217848) internal successors, (1653), 1143 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1653 transitions. [2024-11-08 16:02:15,479 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1653 transitions. Word has length 69 [2024-11-08 16:02:15,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:15,479 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1653 transitions. [2024-11-08 16:02:15,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:15,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1653 transitions. [2024-11-08 16:02:15,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:02:15,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:15,481 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] [2024-11-08 16:02:15,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:02:15,481 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:15,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:15,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1521065783, now seen corresponding path program 1 times [2024-11-08 16:02:15,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:15,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494776090] [2024-11-08 16:02:15,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:15,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:15,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:15,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494776090] [2024-11-08 16:02:15,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494776090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:15,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:15,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:02:15,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650214295] [2024-11-08 16:02:15,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:15,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:02:15,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:15,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:02:15,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:02:15,779 INFO L87 Difference]: Start difference. First operand 1144 states and 1653 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:16,235 INFO L93 Difference]: Finished difference Result 3259 states and 4733 transitions. [2024-11-08 16:02:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:02:16,235 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-08 16:02:16,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:16,242 INFO L225 Difference]: With dead ends: 3259 [2024-11-08 16:02:16,242 INFO L226 Difference]: Without dead ends: 2215 [2024-11-08 16:02:16,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:02:16,245 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 599 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:16,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 491 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:02:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2024-11-08 16:02:16,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 1122. [2024-11-08 16:02:16,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.447814451382694) internal successors, (1623), 1121 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1623 transitions. [2024-11-08 16:02:16,277 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1623 transitions. Word has length 69 [2024-11-08 16:02:16,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:16,278 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1623 transitions. [2024-11-08 16:02:16,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1623 transitions. [2024-11-08 16:02:16,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:02:16,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:16,279 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] [2024-11-08 16:02:16,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:02:16,279 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:16,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:16,280 INFO L85 PathProgramCache]: Analyzing trace with hash 770281693, now seen corresponding path program 1 times [2024-11-08 16:02:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:16,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403606862] [2024-11-08 16:02:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:16,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:16,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:16,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:16,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403606862] [2024-11-08 16:02:16,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403606862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:16,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:16,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:02:16,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518611907] [2024-11-08 16:02:16,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:16,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:02:16,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:02:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:02:16,538 INFO L87 Difference]: Start difference. First operand 1122 states and 1623 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:16,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:16,931 INFO L93 Difference]: Finished difference Result 3214 states and 4663 transitions. [2024-11-08 16:02:16,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:02:16,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-08 16:02:16,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:16,939 INFO L225 Difference]: With dead ends: 3214 [2024-11-08 16:02:16,939 INFO L226 Difference]: Without dead ends: 2200 [2024-11-08 16:02:16,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:02:16,942 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 636 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:16,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 413 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:02:16,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2024-11-08 16:02:16,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1122. [2024-11-08 16:02:16,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.4433541480820695) internal successors, (1618), 1121 states have internal predecessors, (1618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1618 transitions. [2024-11-08 16:02:16,966 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1618 transitions. Word has length 69 [2024-11-08 16:02:16,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:16,967 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1618 transitions. [2024-11-08 16:02:16,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:16,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1618 transitions. [2024-11-08 16:02:16,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 16:02:16,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:16,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:16,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:02:16,968 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:16,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash -751317883, now seen corresponding path program 1 times [2024-11-08 16:02:16,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:16,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437789911] [2024-11-08 16:02:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:16,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:17,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:17,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:17,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437789911] [2024-11-08 16:02:17,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437789911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:17,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:17,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:02:17,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725597526] [2024-11-08 16:02:17,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:17,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:02:17,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:17,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:02:17,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:02:17,262 INFO L87 Difference]: Start difference. First operand 1122 states and 1618 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:17,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:17,778 INFO L93 Difference]: Finished difference Result 3244 states and 4698 transitions. [2024-11-08 16:02:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:02:17,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-08 16:02:17,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:17,787 INFO L225 Difference]: With dead ends: 3244 [2024-11-08 16:02:17,787 INFO L226 Difference]: Without dead ends: 2210 [2024-11-08 16:02:17,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:02:17,789 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 321 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:17,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 655 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:02:17,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-11-08 16:02:17,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1122. [2024-11-08 16:02:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.43978590544157) internal successors, (1614), 1121 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1614 transitions. [2024-11-08 16:02:17,812 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1614 transitions. Word has length 70 [2024-11-08 16:02:17,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:17,813 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1614 transitions. [2024-11-08 16:02:17,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:17,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1614 transitions. [2024-11-08 16:02:17,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 16:02:17,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:17,814 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] [2024-11-08 16:02:17,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:02:17,814 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:17,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:17,815 INFO L85 PathProgramCache]: Analyzing trace with hash -425050317, now seen corresponding path program 1 times [2024-11-08 16:02:17,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:17,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765772674] [2024-11-08 16:02:17,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:17,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:18,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:18,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765772674] [2024-11-08 16:02:18,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765772674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:18,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:18,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 16:02:18,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179260409] [2024-11-08 16:02:18,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:18,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:02:18,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:18,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:02:18,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:02:18,413 INFO L87 Difference]: Start difference. First operand 1122 states and 1614 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:19,042 INFO L93 Difference]: Finished difference Result 4571 states and 6654 transitions. [2024-11-08 16:02:19,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:02:19,042 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-08 16:02:19,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:19,063 INFO L225 Difference]: With dead ends: 4571 [2024-11-08 16:02:19,063 INFO L226 Difference]: Without dead ends: 4176 [2024-11-08 16:02:19,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-08 16:02:19,069 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 711 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:19,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1586 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:02:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2024-11-08 16:02:19,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 1101. [2024-11-08 16:02:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 1100 states have (on average 1.44) internal successors, (1584), 1100 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:19,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1584 transitions. [2024-11-08 16:02:19,105 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1584 transitions. Word has length 71 [2024-11-08 16:02:19,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:19,105 INFO L471 AbstractCegarLoop]: Abstraction has 1101 states and 1584 transitions. [2024-11-08 16:02:19,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:19,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1584 transitions. [2024-11-08 16:02:19,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 16:02:19,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:19,106 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] [2024-11-08 16:02:19,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:02:19,107 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:19,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1237414452, now seen corresponding path program 1 times [2024-11-08 16:02:19,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:19,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483482319] [2024-11-08 16:02:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:19,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:19,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483482319] [2024-11-08 16:02:19,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483482319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:19,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:19,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:02:19,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616181102] [2024-11-08 16:02:19,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:19,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:02:19,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:19,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:02:19,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:02:19,797 INFO L87 Difference]: Start difference. First operand 1101 states and 1584 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:20,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:20,611 INFO L93 Difference]: Finished difference Result 4515 states and 6577 transitions. [2024-11-08 16:02:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:02:20,612 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-08 16:02:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:20,620 INFO L225 Difference]: With dead ends: 4515 [2024-11-08 16:02:20,620 INFO L226 Difference]: Without dead ends: 4145 [2024-11-08 16:02:20,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:02:20,623 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 789 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:20,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1586 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:02:20,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2024-11-08 16:02:20,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 1100. [2024-11-08 16:02:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 1.4367606915377615) internal successors, (1579), 1099 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1579 transitions. [2024-11-08 16:02:20,659 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1579 transitions. Word has length 71 [2024-11-08 16:02:20,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:20,660 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1579 transitions. [2024-11-08 16:02:20,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:20,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1579 transitions. [2024-11-08 16:02:20,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 16:02:20,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:20,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:20,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:02:20,661 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:20,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:20,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1749525204, now seen corresponding path program 1 times [2024-11-08 16:02:20,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:20,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214779547] [2024-11-08 16:02:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:20,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:21,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:21,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:21,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214779547] [2024-11-08 16:02:21,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214779547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:21,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:21,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:02:21,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589892537] [2024-11-08 16:02:21,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:21,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:02:21,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:21,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:02:21,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:02:21,212 INFO L87 Difference]: Start difference. First operand 1100 states and 1579 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:21,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:21,897 INFO L93 Difference]: Finished difference Result 2499 states and 3623 transitions. [2024-11-08 16:02:21,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:02:21,898 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-08 16:02:21,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:21,903 INFO L225 Difference]: With dead ends: 2499 [2024-11-08 16:02:21,903 INFO L226 Difference]: Without dead ends: 2114 [2024-11-08 16:02:21,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:02:21,905 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 561 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:21,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1430 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:02:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2024-11-08 16:02:21,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 1083. [2024-11-08 16:02:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1082 states have (on average 1.4390018484288354) internal successors, (1557), 1082 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1557 transitions. [2024-11-08 16:02:21,925 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1557 transitions. Word has length 71 [2024-11-08 16:02:21,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:21,925 INFO L471 AbstractCegarLoop]: Abstraction has 1083 states and 1557 transitions. [2024-11-08 16:02:21,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1557 transitions. [2024-11-08 16:02:21,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 16:02:21,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:21,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:21,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:02:21,926 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:21,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:21,927 INFO L85 PathProgramCache]: Analyzing trace with hash -133954429, now seen corresponding path program 1 times [2024-11-08 16:02:21,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:21,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480770015] [2024-11-08 16:02:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:21,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:23,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:23,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480770015] [2024-11-08 16:02:23,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480770015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:23,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:23,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2024-11-08 16:02:23,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793919326] [2024-11-08 16:02:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:23,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 16:02:23,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 16:02:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:02:23,455 INFO L87 Difference]: Start difference. First operand 1083 states and 1557 transitions. Second operand has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 27 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:26,098 INFO L93 Difference]: Finished difference Result 5545 states and 8075 transitions. [2024-11-08 16:02:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-08 16:02:26,099 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 27 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-08 16:02:26,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:26,113 INFO L225 Difference]: With dead ends: 5545 [2024-11-08 16:02:26,113 INFO L226 Difference]: Without dead ends: 5176 [2024-11-08 16:02:26,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=398, Invalid=2052, Unknown=0, NotChecked=0, Total=2450 [2024-11-08 16:02:26,117 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1085 mSDsluCounter, 4419 mSDsCounter, 0 mSdLazyCounter, 3006 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 4731 SdHoareTripleChecker+Invalid, 3016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:26,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 4731 Invalid, 3016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3006 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 16:02:26,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5176 states. [2024-11-08 16:02:26,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 1096. [2024-11-08 16:02:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1095 states have (on average 1.4365296803652967) internal successors, (1573), 1095 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1573 transitions. [2024-11-08 16:02:26,158 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1573 transitions. Word has length 72 [2024-11-08 16:02:26,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:26,158 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1573 transitions. [2024-11-08 16:02:26,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 27 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1573 transitions. [2024-11-08 16:02:26,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 16:02:26,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:26,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:26,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:02:26,160 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:26,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:26,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1545437633, now seen corresponding path program 1 times [2024-11-08 16:02:26,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:26,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097864723] [2024-11-08 16:02:26,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:26,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:26,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:26,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097864723] [2024-11-08 16:02:26,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097864723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:26,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:26,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:02:26,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466854755] [2024-11-08 16:02:26,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:26,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:02:26,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:26,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:02:26,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:02:26,283 INFO L87 Difference]: Start difference. First operand 1096 states and 1573 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:26,324 INFO L93 Difference]: Finished difference Result 2508 states and 3642 transitions. [2024-11-08 16:02:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:02:26,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-08 16:02:26,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:26,327 INFO L225 Difference]: With dead ends: 2508 [2024-11-08 16:02:26,327 INFO L226 Difference]: Without dead ends: 1499 [2024-11-08 16:02:26,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:02:26,329 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 72 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:26,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 353 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:02:26,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-11-08 16:02:26,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1488. [2024-11-08 16:02:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 1.433759246805649) internal successors, (2132), 1487 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2132 transitions. [2024-11-08 16:02:26,349 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2132 transitions. Word has length 72 [2024-11-08 16:02:26,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:26,349 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 2132 transitions. [2024-11-08 16:02:26,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2132 transitions. [2024-11-08 16:02:26,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 16:02:26,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:26,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:26,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:02:26,351 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:26,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:26,351 INFO L85 PathProgramCache]: Analyzing trace with hash -654506813, now seen corresponding path program 1 times [2024-11-08 16:02:26,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:26,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268397823] [2024-11-08 16:02:26,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:26,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:26,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:26,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:26,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268397823] [2024-11-08 16:02:26,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268397823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:26,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:26,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:02:26,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720245863] [2024-11-08 16:02:26,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:26,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:02:26,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:26,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:02:26,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:02:26,517 INFO L87 Difference]: Start difference. First operand 1488 states and 2132 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:26,539 INFO L93 Difference]: Finished difference Result 1500 states and 2148 transitions. [2024-11-08 16:02:26,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:02:26,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-08 16:02:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:26,542 INFO L225 Difference]: With dead ends: 1500 [2024-11-08 16:02:26,542 INFO L226 Difference]: Without dead ends: 1498 [2024-11-08 16:02:26,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:02:26,543 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:26,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 581 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:02:26,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-11-08 16:02:26,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1498. [2024-11-08 16:02:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 1.4235136940547761) internal successors, (2131), 1497 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2131 transitions. [2024-11-08 16:02:26,562 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2131 transitions. Word has length 72 [2024-11-08 16:02:26,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:26,562 INFO L471 AbstractCegarLoop]: Abstraction has 1498 states and 2131 transitions. [2024-11-08 16:02:26,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:26,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2131 transitions. [2024-11-08 16:02:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 16:02:26,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:26,563 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:26,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:02:26,563 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:26,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1238915253, now seen corresponding path program 1 times [2024-11-08 16:02:26,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:26,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215671519] [2024-11-08 16:02:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:26,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:27,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:27,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215671519] [2024-11-08 16:02:27,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215671519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:27,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:27,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:02:27,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396312758] [2024-11-08 16:02:27,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:27,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:02:27,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:27,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:02:27,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:02:27,085 INFO L87 Difference]: Start difference. First operand 1498 states and 2131 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:27,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:27,642 INFO L93 Difference]: Finished difference Result 3466 states and 4968 transitions. [2024-11-08 16:02:27,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:02:27,643 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-08 16:02:27,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:27,647 INFO L225 Difference]: With dead ends: 3466 [2024-11-08 16:02:27,647 INFO L226 Difference]: Without dead ends: 2910 [2024-11-08 16:02:27,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:02:27,650 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 656 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:27,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1278 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:02:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2024-11-08 16:02:27,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 1479. [2024-11-08 16:02:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1478 states have (on average 1.4255751014884979) internal successors, (2107), 1478 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2107 transitions. [2024-11-08 16:02:27,677 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2107 transitions. Word has length 73 [2024-11-08 16:02:27,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:27,677 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 2107 transitions. [2024-11-08 16:02:27,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2107 transitions. [2024-11-08 16:02:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:02:27,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:27,679 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:27,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:02:27,681 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:27,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:27,681 INFO L85 PathProgramCache]: Analyzing trace with hash 578501654, now seen corresponding path program 1 times [2024-11-08 16:02:27,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:27,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564201526] [2024-11-08 16:02:27,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:27,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:27,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:27,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564201526] [2024-11-08 16:02:27,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564201526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:27,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:27,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265160084] [2024-11-08 16:02:27,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:27,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:02:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:27,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:02:27,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:02:27,822 INFO L87 Difference]: Start difference. First operand 1479 states and 2107 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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) [2024-11-08 16:02:28,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:28,047 INFO L93 Difference]: Finished difference Result 4921 states and 7107 transitions. [2024-11-08 16:02:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:02:28,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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 97 [2024-11-08 16:02:28,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:28,053 INFO L225 Difference]: With dead ends: 4921 [2024-11-08 16:02:28,054 INFO L226 Difference]: Without dead ends: 3510 [2024-11-08 16:02:28,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:02:28,057 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 716 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:28,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 274 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:02:28,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2024-11-08 16:02:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3198. [2024-11-08 16:02:28,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 3197 states have (on average 1.4310290897716609) internal successors, (4575), 3197 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:28,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 4575 transitions. [2024-11-08 16:02:28,109 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 4575 transitions. Word has length 97 [2024-11-08 16:02:28,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:28,109 INFO L471 AbstractCegarLoop]: Abstraction has 3198 states and 4575 transitions. [2024-11-08 16:02:28,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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) [2024-11-08 16:02:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 4575 transitions. [2024-11-08 16:02:28,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:02:28,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:28,111 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:28,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 16:02:28,112 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:28,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:28,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1001070108, now seen corresponding path program 1 times [2024-11-08 16:02:28,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:28,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853646279] [2024-11-08 16:02:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:28,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:28,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:28,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853646279] [2024-11-08 16:02:28,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853646279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:28,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:28,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:28,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774151512] [2024-11-08 16:02:28,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:28,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:02:28,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:28,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:02:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:02:28,238 INFO L87 Difference]: Start difference. First operand 3198 states and 4575 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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) [2024-11-08 16:02:28,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:28,479 INFO L93 Difference]: Finished difference Result 11566 states and 16743 transitions. [2024-11-08 16:02:28,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:02:28,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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 97 [2024-11-08 16:02:28,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:28,493 INFO L225 Difference]: With dead ends: 11566 [2024-11-08 16:02:28,494 INFO L226 Difference]: Without dead ends: 8436 [2024-11-08 16:02:28,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:02:28,500 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 801 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:28,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 276 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:02:28,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8436 states. [2024-11-08 16:02:28,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8436 to 6946. [2024-11-08 16:02:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 6945 states have (on average 1.431965442764579) internal successors, (9945), 6945 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 9945 transitions. [2024-11-08 16:02:28,654 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 9945 transitions. Word has length 97 [2024-11-08 16:02:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:28,654 INFO L471 AbstractCegarLoop]: Abstraction has 6946 states and 9945 transitions. [2024-11-08 16:02:28,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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) [2024-11-08 16:02:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 9945 transitions. [2024-11-08 16:02:28,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:02:28,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:28,656 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:28,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 16:02:28,657 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:28,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:28,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1832318814, now seen corresponding path program 1 times [2024-11-08 16:02:28,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:28,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660270107] [2024-11-08 16:02:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:28,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:28,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660270107] [2024-11-08 16:02:28,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660270107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:28,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:28,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:02:28,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297563829] [2024-11-08 16:02:28,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:28,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:02:28,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:28,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:02:28,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:02:28,806 INFO L87 Difference]: Start difference. First operand 6946 states and 9945 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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) [2024-11-08 16:02:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:29,118 INFO L93 Difference]: Finished difference Result 20126 states and 29083 transitions. [2024-11-08 16:02:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:02:29,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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 97 [2024-11-08 16:02:29,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:29,143 INFO L225 Difference]: With dead ends: 20126 [2024-11-08 16:02:29,144 INFO L226 Difference]: Without dead ends: 13248 [2024-11-08 16:02:29,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:02:29,156 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 658 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:29,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 339 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:02:29,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13248 states. [2024-11-08 16:02:29,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13248 to 10636. [2024-11-08 16:02:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10636 states, 10635 states have (on average 1.435543018335684) internal successors, (15267), 10635 states have internal predecessors, (15267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:29,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10636 states to 10636 states and 15267 transitions. [2024-11-08 16:02:29,307 INFO L78 Accepts]: Start accepts. Automaton has 10636 states and 15267 transitions. Word has length 97 [2024-11-08 16:02:29,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:29,307 INFO L471 AbstractCegarLoop]: Abstraction has 10636 states and 15267 transitions. [2024-11-08 16:02:29,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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) [2024-11-08 16:02:29,308 INFO L276 IsEmpty]: Start isEmpty. Operand 10636 states and 15267 transitions. [2024-11-08 16:02:29,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:02:29,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:29,309 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:29,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 16:02:29,310 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:29,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:29,310 INFO L85 PathProgramCache]: Analyzing trace with hash 909226558, now seen corresponding path program 1 times [2024-11-08 16:02:29,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:29,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175518477] [2024-11-08 16:02:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:29,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:29,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:29,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175518477] [2024-11-08 16:02:29,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175518477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:29,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:29,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:02:29,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760975939] [2024-11-08 16:02:29,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:29,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:02:29,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:29,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:02:29,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:02:29,456 INFO L87 Difference]: Start difference. First operand 10636 states and 15267 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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) [2024-11-08 16:02:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:29,507 INFO L93 Difference]: Finished difference Result 18776 states and 26973 transitions. [2024-11-08 16:02:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:02:29,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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 97 [2024-11-08 16:02:29,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:29,525 INFO L225 Difference]: With dead ends: 18776 [2024-11-08 16:02:29,526 INFO L226 Difference]: Without dead ends: 10153 [2024-11-08 16:02:29,537 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 [2024-11-08 16:02:29,538 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 65 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 320 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 [2024-11-08 16:02:29,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 320 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:02:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10153 states. [2024-11-08 16:02:29,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10153 to 10151. [2024-11-08 16:02:29,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10151 states, 10150 states have (on average 1.421576354679803) internal successors, (14429), 10150 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10151 states to 10151 states and 14429 transitions. [2024-11-08 16:02:29,663 INFO L78 Accepts]: Start accepts. Automaton has 10151 states and 14429 transitions. Word has length 97 [2024-11-08 16:02:29,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:29,663 INFO L471 AbstractCegarLoop]: Abstraction has 10151 states and 14429 transitions. [2024-11-08 16:02:29,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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) [2024-11-08 16:02:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 10151 states and 14429 transitions. [2024-11-08 16:02:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 16:02:29,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:29,666 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:29,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 16:02:29,666 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:29,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1634569540, now seen corresponding path program 1 times [2024-11-08 16:02:29,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:29,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944007337] [2024-11-08 16:02:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:29,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 16:02:29,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:29,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944007337] [2024-11-08 16:02:29,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944007337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:29,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:29,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:02:29,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423670709] [2024-11-08 16:02:29,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:29,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:02:29,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:29,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:02:29,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:02:29,768 INFO L87 Difference]: Start difference. First operand 10151 states and 14429 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:29,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:29,824 INFO L93 Difference]: Finished difference Result 19331 states and 27415 transitions. [2024-11-08 16:02:29,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:02:29,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-08 16:02:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:29,840 INFO L225 Difference]: With dead ends: 19331 [2024-11-08 16:02:29,840 INFO L226 Difference]: Without dead ends: 9262 [2024-11-08 16:02:29,851 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 [2024-11-08 16:02:29,852 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 61 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 314 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 [2024-11-08 16:02:29,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 314 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:02:29,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9262 states. [2024-11-08 16:02:29,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9262 to 8990. [2024-11-08 16:02:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 1.4049393703415285) internal successors, (12629), 8989 states have internal predecessors, (12629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 12629 transitions. [2024-11-08 16:02:30,071 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 12629 transitions. Word has length 121 [2024-11-08 16:02:30,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:30,071 INFO L471 AbstractCegarLoop]: Abstraction has 8990 states and 12629 transitions. [2024-11-08 16:02:30,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,072 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 12629 transitions. [2024-11-08 16:02:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 16:02:30,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:30,074 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:30,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 16:02:30,075 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:30,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:30,075 INFO L85 PathProgramCache]: Analyzing trace with hash 264130244, now seen corresponding path program 1 times [2024-11-08 16:02:30,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:30,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617538104] [2024-11-08 16:02:30,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:30,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 16:02:30,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:30,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617538104] [2024-11-08 16:02:30,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617538104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:30,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:30,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:02:30,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911691199] [2024-11-08 16:02:30,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:30,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:02:30,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:30,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:02:30,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:02:30,192 INFO L87 Difference]: Start difference. First operand 8990 states and 12629 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:30,240 INFO L93 Difference]: Finished difference Result 17024 states and 23835 transitions. [2024-11-08 16:02:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:02:30,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 122 [2024-11-08 16:02:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:30,254 INFO L225 Difference]: With dead ends: 17024 [2024-11-08 16:02:30,255 INFO L226 Difference]: Without dead ends: 8110 [2024-11-08 16:02:30,264 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 [2024-11-08 16:02:30,268 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 54 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 314 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 [2024-11-08 16:02:30,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 314 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:02:30,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8110 states. [2024-11-08 16:02:30,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8110 to 7856. [2024-11-08 16:02:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7856 states, 7855 states have (on average 1.3831954169318905) internal successors, (10865), 7855 states have internal predecessors, (10865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7856 states to 7856 states and 10865 transitions. [2024-11-08 16:02:30,360 INFO L78 Accepts]: Start accepts. Automaton has 7856 states and 10865 transitions. Word has length 122 [2024-11-08 16:02:30,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:30,360 INFO L471 AbstractCegarLoop]: Abstraction has 7856 states and 10865 transitions. [2024-11-08 16:02:30,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 7856 states and 10865 transitions. [2024-11-08 16:02:30,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 16:02:30,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:30,363 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:30,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 16:02:30,363 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:30,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:30,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1753192703, now seen corresponding path program 1 times [2024-11-08 16:02:30,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:30,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740297381] [2024-11-08 16:02:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:30,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 16:02:30,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:30,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740297381] [2024-11-08 16:02:30,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740297381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:30,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:30,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:02:30,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603985256] [2024-11-08 16:02:30,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:30,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:02:30,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:30,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:02:30,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:02:30,482 INFO L87 Difference]: Start difference. First operand 7856 states and 10865 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:30,614 INFO L93 Difference]: Finished difference Result 22492 states and 30923 transitions. [2024-11-08 16:02:30,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:02:30,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 123 [2024-11-08 16:02:30,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:30,635 INFO L225 Difference]: With dead ends: 22492 [2024-11-08 16:02:30,636 INFO L226 Difference]: Without dead ends: 14712 [2024-11-08 16:02:30,643 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 [2024-11-08 16:02:30,645 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 47 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 316 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 [2024-11-08 16:02:30,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 316 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:02:30,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14712 states. [2024-11-08 16:02:30,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14712 to 13534. [2024-11-08 16:02:30,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13534 states, 13533 states have (on average 1.3638513263873495) internal successors, (18457), 13533 states have internal predecessors, (18457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13534 states to 13534 states and 18457 transitions. [2024-11-08 16:02:30,814 INFO L78 Accepts]: Start accepts. Automaton has 13534 states and 18457 transitions. Word has length 123 [2024-11-08 16:02:30,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:30,815 INFO L471 AbstractCegarLoop]: Abstraction has 13534 states and 18457 transitions. [2024-11-08 16:02:30,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,815 INFO L276 IsEmpty]: Start isEmpty. Operand 13534 states and 18457 transitions. [2024-11-08 16:02:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 16:02:30,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:30,818 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:30,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 16:02:30,818 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:30,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:30,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1550175903, now seen corresponding path program 1 times [2024-11-08 16:02:30,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:30,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740471095] [2024-11-08 16:02:30,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:30,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:30,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:30,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740471095] [2024-11-08 16:02:30,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740471095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:02:30,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:02:30,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:02:30,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372260225] [2024-11-08 16:02:30,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:02:30,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:02:30,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:30,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:02:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:02:30,922 INFO L87 Difference]: Start difference. First operand 13534 states and 18457 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:30,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:30,987 INFO L93 Difference]: Finished difference Result 23638 states and 32180 transitions. [2024-11-08 16:02:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:02:30,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-08 16:02:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:31,005 INFO L225 Difference]: With dead ends: 23638 [2024-11-08 16:02:31,006 INFO L226 Difference]: Without dead ends: 10180 [2024-11-08 16:02:31,018 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 [2024-11-08 16:02:31,019 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 69 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:31,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:02:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10180 states. [2024-11-08 16:02:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10180 to 10010. [2024-11-08 16:02:31,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 10009 states have (on average 1.3404935557997801) internal successors, (13417), 10009 states have internal predecessors, (13417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:31,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 13417 transitions. [2024-11-08 16:02:31,249 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 13417 transitions. Word has length 124 [2024-11-08 16:02:31,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:31,249 INFO L471 AbstractCegarLoop]: Abstraction has 10010 states and 13417 transitions. [2024-11-08 16:02:31,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:31,251 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 13417 transitions. [2024-11-08 16:02:31,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 16:02:31,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:31,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:31,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 16:02:31,254 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:31,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:31,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1219450999, now seen corresponding path program 1 times [2024-11-08 16:02:31,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:31,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917298023] [2024-11-08 16:02:31,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:31,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:31,950 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:31,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:31,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917298023] [2024-11-08 16:02:31,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917298023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:02:31,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381542716] [2024-11-08 16:02:31,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:31,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:02:31,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:02:31,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:02:31,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:02:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:32,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:02:32,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:02:33,327 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:33,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:02:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:35,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381542716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:02:35,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:02:35,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 33 [2024-11-08 16:02:35,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781129672] [2024-11-08 16:02:35,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:02:35,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 16:02:35,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:35,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 16:02:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1007, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 16:02:35,064 INFO L87 Difference]: Start difference. First operand 10010 states and 13417 transitions. Second operand has 34 states, 34 states have (on average 9.735294117647058) internal successors, (331), 33 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:43,570 INFO L93 Difference]: Finished difference Result 126062 states and 167569 transitions. [2024-11-08 16:02:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2024-11-08 16:02:43,571 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.735294117647058) internal successors, (331), 33 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-08 16:02:43,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:43,776 INFO L225 Difference]: With dead ends: 126062 [2024-11-08 16:02:43,776 INFO L226 Difference]: Without dead ends: 116160 [2024-11-08 16:02:43,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10677 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=4380, Invalid=27482, Unknown=0, NotChecked=0, Total=31862 [2024-11-08 16:02:43,828 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 5361 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 3003 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5361 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 3162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 3003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:43,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5361 Valid, 2265 Invalid, 3162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 3003 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 16:02:43,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116160 states. [2024-11-08 16:02:45,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116160 to 76112. [2024-11-08 16:02:45,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76112 states, 76111 states have (on average 1.3320544993496342) internal successors, (101384), 76111 states have internal predecessors, (101384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76112 states to 76112 states and 101384 transitions. [2024-11-08 16:02:45,206 INFO L78 Accepts]: Start accepts. Automaton has 76112 states and 101384 transitions. Word has length 124 [2024-11-08 16:02:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:45,207 INFO L471 AbstractCegarLoop]: Abstraction has 76112 states and 101384 transitions. [2024-11-08 16:02:45,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.735294117647058) internal successors, (331), 33 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:45,207 INFO L276 IsEmpty]: Start isEmpty. Operand 76112 states and 101384 transitions. [2024-11-08 16:02:45,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 16:02:45,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:45,216 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:45,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:02:45,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-08 16:02:45,421 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:45,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:45,421 INFO L85 PathProgramCache]: Analyzing trace with hash -721088221, now seen corresponding path program 1 times [2024-11-08 16:02:45,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:45,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003482455] [2024-11-08 16:02:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:45,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:46,381 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:46,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:46,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003482455] [2024-11-08 16:02:46,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003482455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:02:46,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113542022] [2024-11-08 16:02:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:46,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:02:46,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:02:46,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:02:46,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:02:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:46,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:02:46,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:02:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:47,452 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:02:48,443 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:48,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113542022] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:02:48,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:02:48,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-11-08 16:02:48,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307384346] [2024-11-08 16:02:48,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:02:48,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 16:02:48,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:48,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 16:02:48,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2024-11-08 16:02:48,446 INFO L87 Difference]: Start difference. First operand 76112 states and 101384 transitions. Second operand has 26 states, 26 states have (on average 11.115384615384615) internal successors, (289), 25 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:02:50,349 INFO L93 Difference]: Finished difference Result 315094 states and 421255 transitions. [2024-11-08 16:02:50,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 16:02:50,349 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.115384615384615) internal successors, (289), 25 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-08 16:02:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:02:51,008 INFO L225 Difference]: With dead ends: 315094 [2024-11-08 16:02:51,008 INFO L226 Difference]: Without dead ends: 239352 [2024-11-08 16:02:51,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=488, Invalid=1674, Unknown=0, NotChecked=0, Total=2162 [2024-11-08 16:02:51,081 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 1385 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:02:51,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 1263 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:02:51,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239352 states. [2024-11-08 16:02:53,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239352 to 183885. [2024-11-08 16:02:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183885 states, 183884 states have (on average 1.3280655195666833) internal successors, (244210), 183884 states have internal predecessors, (244210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:54,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183885 states to 183885 states and 244210 transitions. [2024-11-08 16:02:54,238 INFO L78 Accepts]: Start accepts. Automaton has 183885 states and 244210 transitions. Word has length 125 [2024-11-08 16:02:54,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:02:54,238 INFO L471 AbstractCegarLoop]: Abstraction has 183885 states and 244210 transitions. [2024-11-08 16:02:54,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.115384615384615) internal successors, (289), 25 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:02:54,238 INFO L276 IsEmpty]: Start isEmpty. Operand 183885 states and 244210 transitions. [2024-11-08 16:02:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 16:02:54,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:02:54,252 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:02:54,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:02:54,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-08 16:02:54,453 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:02:54,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:02:54,454 INFO L85 PathProgramCache]: Analyzing trace with hash -2049259691, now seen corresponding path program 1 times [2024-11-08 16:02:54,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:02:54,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941428365] [2024-11-08 16:02:54,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:54,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:02:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:55,256 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:55,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:02:55,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941428365] [2024-11-08 16:02:55,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941428365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:02:55,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98925298] [2024-11-08 16:02:55,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:02:55,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:02:55,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:02:55,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:02:55,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:02:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:02:55,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 16:02:55,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:02:56,359 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:56,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:02:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:02:57,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98925298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:02:57,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:02:57,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 28 [2024-11-08 16:02:57,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480942143] [2024-11-08 16:02:57,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:02:57,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-08 16:02:57,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:02:57,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-08 16:02:57,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2024-11-08 16:02:57,696 INFO L87 Difference]: Start difference. First operand 183885 states and 244210 transitions. Second operand has 29 states, 29 states have (on average 10.689655172413794) internal successors, (310), 28 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:03:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:03:01,821 INFO L93 Difference]: Finished difference Result 620819 states and 824501 transitions. [2024-11-08 16:03:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-08 16:03:01,822 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.689655172413794) internal successors, (310), 28 states have internal predecessors, (310), 0 states have call successors, (0), 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 126 [2024-11-08 16:03:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:03:03,134 INFO L225 Difference]: With dead ends: 620819 [2024-11-08 16:03:03,134 INFO L226 Difference]: Without dead ends: 474733 [2024-11-08 16:03:03,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1123 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1115, Invalid=3715, Unknown=0, NotChecked=0, Total=4830 [2024-11-08 16:03:03,284 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 3495 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3495 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:03:03,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3495 Valid, 2259 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 16:03:03,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474733 states. [2024-11-08 16:03:06,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474733 to 183584. [2024-11-08 16:03:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183584 states, 183583 states have (on average 1.3284672328047804) internal successors, (243884), 183583 states have internal predecessors, (243884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:03:07,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183584 states to 183584 states and 243884 transitions. [2024-11-08 16:03:07,841 INFO L78 Accepts]: Start accepts. Automaton has 183584 states and 243884 transitions. Word has length 126 [2024-11-08 16:03:07,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:03:07,842 INFO L471 AbstractCegarLoop]: Abstraction has 183584 states and 243884 transitions. [2024-11-08 16:03:07,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.689655172413794) internal successors, (310), 28 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:03:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 183584 states and 243884 transitions. [2024-11-08 16:03:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 16:03:07,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:03:07,867 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:03:07,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:03:08,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:03:08,069 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:03:08,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:03:08,073 INFO L85 PathProgramCache]: Analyzing trace with hash -749645095, now seen corresponding path program 1 times [2024-11-08 16:03:08,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:03:08,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232744763] [2024-11-08 16:03:08,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:03:08,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:03:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:03:08,146 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:03:08,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:03:08,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232744763] [2024-11-08 16:03:08,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232744763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:03:08,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:03:08,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:03:08,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575121794] [2024-11-08 16:03:08,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:03:08,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:03:08,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:03:08,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:03:08,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:03:08,149 INFO L87 Difference]: Start difference. First operand 183584 states and 243884 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:03:08,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:03:08,798 INFO L93 Difference]: Finished difference Result 333578 states and 444165 transitions. [2024-11-08 16:03:08,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:03:08,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-11-08 16:03:08,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:03:09,012 INFO L225 Difference]: With dead ends: 333578 [2024-11-08 16:03:09,013 INFO L226 Difference]: Without dead ends: 150343 [2024-11-08 16:03:09,131 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 [2024-11-08 16:03:09,132 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 97 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:03:09,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 176 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:03:09,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150343 states. [2024-11-08 16:03:11,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150343 to 150343. [2024-11-08 16:03:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150343 states, 150342 states have (on average 1.3188330606217824) internal successors, (198276), 150342 states have internal predecessors, (198276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:03:11,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150343 states to 150343 states and 198276 transitions. [2024-11-08 16:03:11,627 INFO L78 Accepts]: Start accepts. Automaton has 150343 states and 198276 transitions. Word has length 126 [2024-11-08 16:03:11,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:03:11,627 INFO L471 AbstractCegarLoop]: Abstraction has 150343 states and 198276 transitions. [2024-11-08 16:03:11,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:03:11,627 INFO L276 IsEmpty]: Start isEmpty. Operand 150343 states and 198276 transitions. [2024-11-08 16:03:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 16:03:11,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:03:11,633 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:03:11,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 16:03:11,634 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:03:11,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:03:11,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1160670702, now seen corresponding path program 1 times [2024-11-08 16:03:11,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:03:11,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98351892] [2024-11-08 16:03:11,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:03:11,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:03:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:03:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:03:12,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:03:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98351892] [2024-11-08 16:03:12,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98351892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:03:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629595389] [2024-11-08 16:03:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:03:12,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:03:12,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:03:12,865 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:03:12,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:03:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:03:13,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 16:03:13,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:03:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:03:13,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:03:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:03:14,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629595389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:03:14,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:03:14,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-11-08 16:03:14,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67305385] [2024-11-08 16:03:14,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:03:14,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 16:03:14,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:03:14,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 16:03:14,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-11-08 16:03:14,914 INFO L87 Difference]: Start difference. First operand 150343 states and 198276 transitions. Second operand has 26 states, 26 states have (on average 11.384615384615385) internal successors, (296), 25 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)