./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 3b0071c78088f9c96f862cb661d2ce94895d7fb3336b3cc889e5292b345efcdd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:06:40,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:06:40,157 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 10:06:40,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:06:40,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:06:40,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:06:40,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:06:40,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:06:40,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:06:40,180 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:06:40,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:06:40,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:06:40,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:06:40,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:06:40,181 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:06:40,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:06:40,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:06:40,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 10:06:40,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:06:40,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:06:40,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:06:40,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:06:40,185 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:06:40,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:06:40,186 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:06:40,186 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:06:40,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:06:40,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:06:40,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:06:40,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:06:40,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:06:40,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:06:40,187 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:06:40,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 10:06:40,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 10:06:40,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:06:40,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:06:40,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:06:40,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:06:40,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b0071c78088f9c96f862cb661d2ce94895d7fb3336b3cc889e5292b345efcdd [2024-11-16 10:06:40,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:06:40,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:06:40,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:06:40,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:06:40,419 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:06:40,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2024-11-16 10:06:41,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:06:41,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:06:41,959 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2024-11-16 10:06:41,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34efedc7c/9d3c5409ebfc41ca80f9642ace5738f4/FLAG8f32d5ab2 [2024-11-16 10:06:42,307 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34efedc7c/9d3c5409ebfc41ca80f9642ace5738f4 [2024-11-16 10:06:42,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:06:42,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:06:42,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:06:42,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:06:42,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:06:42,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:42,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab42107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42, skipping insertion in model container [2024-11-16 10:06:42,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:42,376 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:06:42,551 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/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c[1251,1264] [2024-11-16 10:06:42,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:06:42,706 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:06:42,720 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/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c[1251,1264] [2024-11-16 10:06:42,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:06:42,849 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:06:42,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42 WrapperNode [2024-11-16 10:06:42,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:06:42,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:06:42,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:06:42,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:06:42,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:42,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:42,990 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1334 [2024-11-16 10:06:42,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:06:42,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:06:42,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:06:42,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:06:43,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,079 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]. [2024-11-16 10:06:43,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,102 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:06:43,145 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:06:43,145 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:06:43,145 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:06:43,146 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (1/1) ... [2024-11-16 10:06:43,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:06:43,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:06:43,182 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) [2024-11-16 10:06:43,187 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 [2024-11-16 10:06:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:06:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 10:06:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:06:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:06:43,394 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:06:43,395 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:06:44,799 INFO L? ?]: Removed 791 outVars from TransFormulas that were not future-live. [2024-11-16 10:06:44,799 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:06:44,840 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:06:44,840 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:06:44,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:06:44 BoogieIcfgContainer [2024-11-16 10:06:44,842 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:06:44,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:06:44,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:06:44,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:06:44,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:06:42" (1/3) ... [2024-11-16 10:06:44,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8fcbf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:06:44, skipping insertion in model container [2024-11-16 10:06:44,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:06:42" (2/3) ... [2024-11-16 10:06:44,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8fcbf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:06:44, skipping insertion in model container [2024-11-16 10:06:44,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:06:44" (3/3) ... [2024-11-16 10:06:44,851 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_dec.c [2024-11-16 10:06:44,866 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:06:44,867 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 10:06:44,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:06:44,934 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;@6a4c8ef6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:06:44,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 10:06:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 293 states, 291 states have (on average 1.4914089347079038) internal successors, (434), 292 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:44,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 10:06:44,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:06:44,947 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] [2024-11-16 10:06:44,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:06:44,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:06:44,952 INFO L85 PathProgramCache]: Analyzing trace with hash 463052801, now seen corresponding path program 1 times [2024-11-16 10:06:44,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:06:44,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780946745] [2024-11-16 10:06:44,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:06:44,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:06:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:06:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:06:46,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:06:46,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780946745] [2024-11-16 10:06:46,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780946745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:06:46,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:06:46,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:06:46,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488970324] [2024-11-16 10:06:46,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:06:46,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:06:46,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:06:46,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:06:46,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:06:46,328 INFO L87 Difference]: Start difference. First operand has 293 states, 291 states have (on average 1.4914089347079038) internal successors, (434), 292 states have internal predecessors, (434), 0 states have call successors, (0), 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 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) [2024-11-16 10:06:46,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:06:46,583 INFO L93 Difference]: Finished difference Result 573 states and 853 transitions. [2024-11-16 10:06:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:06:46,589 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 [2024-11-16 10:06:46,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:06:46,598 INFO L225 Difference]: With dead ends: 573 [2024-11-16 10:06:46,599 INFO L226 Difference]: Without dead ends: 290 [2024-11-16 10:06:46,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:06:46,606 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 0 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:06:46,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1063 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:06:46,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-16 10:06:46,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-11-16 10:06:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.4878892733564013) internal successors, (430), 289 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:46,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 430 transitions. [2024-11-16 10:06:46,652 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 430 transitions. Word has length 72 [2024-11-16 10:06:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:06:46,653 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 430 transitions. [2024-11-16 10:06:46,653 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) [2024-11-16 10:06:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 430 transitions. [2024-11-16 10:06:46,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 10:06:46,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:06:46,655 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] [2024-11-16 10:06:46,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 10:06:46,655 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:06:46,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:06:46,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1614788579, now seen corresponding path program 1 times [2024-11-16 10:06:46,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:06:46,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060470626] [2024-11-16 10:06:46,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:06:46,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:06:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:06:47,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:06:47,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:06:47,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060470626] [2024-11-16 10:06:47,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060470626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:06:47,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:06:47,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:06:47,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311896927] [2024-11-16 10:06:47,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:06:47,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:06:47,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:06:47,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:06:47,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:06:47,057 INFO L87 Difference]: Start difference. First operand 290 states and 430 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:06:47,203 INFO L93 Difference]: Finished difference Result 572 states and 849 transitions. [2024-11-16 10:06:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:06:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-16 10:06:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:06:47,206 INFO L225 Difference]: With dead ends: 572 [2024-11-16 10:06:47,206 INFO L226 Difference]: Without dead ends: 292 [2024-11-16 10:06:47,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:06:47,208 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 0 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:06:47,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1060 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:06:47,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-16 10:06:47,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-16 10:06:47,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.4845360824742269) internal successors, (432), 291 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 432 transitions. [2024-11-16 10:06:47,218 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 432 transitions. Word has length 73 [2024-11-16 10:06:47,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:06:47,218 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 432 transitions. [2024-11-16 10:06:47,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 432 transitions. [2024-11-16 10:06:47,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 10:06:47,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:06:47,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:06:47,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 10:06:47,224 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:06:47,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:06:47,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1733917786, now seen corresponding path program 1 times [2024-11-16 10:06:47,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:06:47,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726213346] [2024-11-16 10:06:47,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:06:47,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:06:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:06:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:06:48,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:06:48,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726213346] [2024-11-16 10:06:48,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726213346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:06:48,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:06:48,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:06:48,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289758754] [2024-11-16 10:06:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:06:48,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:06:48,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:06:48,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:06:48,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:06:48,182 INFO L87 Difference]: Start difference. First operand 292 states and 432 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:48,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:06:48,417 INFO L93 Difference]: Finished difference Result 576 states and 853 transitions. [2024-11-16 10:06:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:06:48,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-16 10:06:48,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:06:48,419 INFO L225 Difference]: With dead ends: 576 [2024-11-16 10:06:48,419 INFO L226 Difference]: Without dead ends: 294 [2024-11-16 10:06:48,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:06:48,421 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 366 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:06:48,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1411 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:06:48,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-16 10:06:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-11-16 10:06:48,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 1.4812286689419796) internal successors, (434), 293 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 434 transitions. [2024-11-16 10:06:48,435 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 434 transitions. Word has length 74 [2024-11-16 10:06:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:06:48,437 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 434 transitions. [2024-11-16 10:06:48,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 434 transitions. [2024-11-16 10:06:48,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 10:06:48,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:06:48,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:06:48,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 10:06:48,439 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:06:48,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:06:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash 492819134, now seen corresponding path program 1 times [2024-11-16 10:06:48,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:06:48,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732771878] [2024-11-16 10:06:48,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:06:48,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:06:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:06:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:06:56,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:06:56,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732771878] [2024-11-16 10:06:56,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732771878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:06:56,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:06:56,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:06:56,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365907604] [2024-11-16 10:06:56,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:06:56,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:06:56,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:06:56,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:06:56,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:06:56,470 INFO L87 Difference]: Start difference. First operand 294 states and 434 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:57,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:06:57,386 INFO L93 Difference]: Finished difference Result 578 states and 854 transitions. [2024-11-16 10:06:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:06:57,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-16 10:06:57,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:06:57,389 INFO L225 Difference]: With dead ends: 578 [2024-11-16 10:06:57,389 INFO L226 Difference]: Without dead ends: 294 [2024-11-16 10:06:57,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:06:57,390 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 367 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:06:57,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 413 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 10:06:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-16 10:06:57,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-11-16 10:06:57,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 1.477815699658703) internal successors, (433), 293 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:57,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 433 transitions. [2024-11-16 10:06:57,399 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 433 transitions. Word has length 75 [2024-11-16 10:06:57,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:06:57,400 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 433 transitions. [2024-11-16 10:06:57,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:06:57,400 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 433 transitions. [2024-11-16 10:06:57,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 10:06:57,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:06:57,401 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:06:57,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 10:06:57,401 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:06:57,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:06:57,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1888136767, now seen corresponding path program 1 times [2024-11-16 10:06:57,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:06:57,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415655030] [2024-11-16 10:06:57,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:06:57,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:06:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:16,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:16,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415655030] [2024-11-16 10:07:16,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415655030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:16,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:16,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2024-11-16 10:07:16,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449035801] [2024-11-16 10:07:16,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:16,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-16 10:07:16,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:16,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-16 10:07:16,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=3054, Unknown=0, NotChecked=0, Total=3192 [2024-11-16 10:07:16,964 INFO L87 Difference]: Start difference. First operand 294 states and 433 transitions. Second operand has 57 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 57 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:29,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:29,438 INFO L93 Difference]: Finished difference Result 2010 states and 2987 transitions. [2024-11-16 10:07:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-16 10:07:29,439 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 57 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-16 10:07:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:29,444 INFO L225 Difference]: With dead ends: 2010 [2024-11-16 10:07:29,444 INFO L226 Difference]: Without dead ends: 1726 [2024-11-16 10:07:29,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2107 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=1702, Invalid=10288, Unknown=0, NotChecked=0, Total=11990 [2024-11-16 10:07:29,450 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 6933 mSDsluCounter, 16863 mSDsCounter, 0 mSdLazyCounter, 6643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6933 SdHoareTripleChecker+Valid, 17184 SdHoareTripleChecker+Invalid, 6643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:29,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6933 Valid, 17184 Invalid, 6643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6643 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-16 10:07:29,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2024-11-16 10:07:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 348. [2024-11-16 10:07:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.478386167146974) internal successors, (513), 347 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 513 transitions. [2024-11-16 10:07:29,471 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 513 transitions. Word has length 76 [2024-11-16 10:07:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:29,472 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 513 transitions. [2024-11-16 10:07:29,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 57 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 513 transitions. [2024-11-16 10:07:29,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:29,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:29,474 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:29,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 10:07:29,475 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:29,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:29,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1790663076, now seen corresponding path program 1 times [2024-11-16 10:07:29,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:29,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688550835] [2024-11-16 10:07:29,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:29,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:29,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:29,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:29,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688550835] [2024-11-16 10:07:29,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688550835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:29,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:29,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:29,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592626265] [2024-11-16 10:07:29,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:29,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:29,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:29,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:29,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:29,705 INFO L87 Difference]: Start difference. First operand 348 states and 513 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:29,936 INFO L93 Difference]: Finished difference Result 878 states and 1292 transitions. [2024-11-16 10:07:29,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:29,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:29,939 INFO L225 Difference]: With dead ends: 878 [2024-11-16 10:07:29,939 INFO L226 Difference]: Without dead ends: 540 [2024-11-16 10:07:29,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:29,941 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 801 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:29,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-16 10:07:29,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 366. [2024-11-16 10:07:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.473972602739726) internal successors, (538), 365 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 538 transitions. [2024-11-16 10:07:29,956 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 538 transitions. Word has length 77 [2024-11-16 10:07:29,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:29,956 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 538 transitions. [2024-11-16 10:07:29,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:29,957 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 538 transitions. [2024-11-16 10:07:29,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:29,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:29,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:29,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 10:07:29,958 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:29,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:29,959 INFO L85 PathProgramCache]: Analyzing trace with hash 218516902, now seen corresponding path program 1 times [2024-11-16 10:07:29,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:29,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015579734] [2024-11-16 10:07:29,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:29,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:30,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:30,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:30,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015579734] [2024-11-16 10:07:30,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015579734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:30,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:30,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:30,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166245474] [2024-11-16 10:07:30,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:30,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:30,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:30,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:30,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:30,188 INFO L87 Difference]: Start difference. First operand 366 states and 538 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:30,413 INFO L93 Difference]: Finished difference Result 876 states and 1287 transitions. [2024-11-16 10:07:30,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:30,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:30,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:30,415 INFO L225 Difference]: With dead ends: 876 [2024-11-16 10:07:30,415 INFO L226 Difference]: Without dead ends: 538 [2024-11-16 10:07:30,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:30,416 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 789 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:30,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:30,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-16 10:07:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 376. [2024-11-16 10:07:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.4693333333333334) internal successors, (551), 375 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 551 transitions. [2024-11-16 10:07:30,426 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 551 transitions. Word has length 77 [2024-11-16 10:07:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:30,426 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 551 transitions. [2024-11-16 10:07:30,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 551 transitions. [2024-11-16 10:07:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:30,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:30,427 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:30,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 10:07:30,427 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:30,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:30,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2105333264, now seen corresponding path program 1 times [2024-11-16 10:07:30,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:30,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886574019] [2024-11-16 10:07:30,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:30,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:30,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:30,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:30,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886574019] [2024-11-16 10:07:30,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886574019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:30,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:30,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:30,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562774878] [2024-11-16 10:07:30,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:30,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:30,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:30,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:30,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:30,637 INFO L87 Difference]: Start difference. First operand 376 states and 551 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:30,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:30,863 INFO L93 Difference]: Finished difference Result 874 states and 1282 transitions. [2024-11-16 10:07:30,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:30,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:30,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:30,865 INFO L225 Difference]: With dead ends: 874 [2024-11-16 10:07:30,865 INFO L226 Difference]: Without dead ends: 536 [2024-11-16 10:07:30,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:30,867 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 777 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:30,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-16 10:07:30,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 386. [2024-11-16 10:07:30,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.464935064935065) internal successors, (564), 385 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:30,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 564 transitions. [2024-11-16 10:07:30,878 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 564 transitions. Word has length 77 [2024-11-16 10:07:30,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:30,879 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 564 transitions. [2024-11-16 10:07:30,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:30,880 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 564 transitions. [2024-11-16 10:07:30,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:30,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:30,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:30,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 10:07:30,881 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:30,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:30,881 INFO L85 PathProgramCache]: Analyzing trace with hash 280510601, now seen corresponding path program 1 times [2024-11-16 10:07:30,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:30,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808117585] [2024-11-16 10:07:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:30,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:31,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:31,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808117585] [2024-11-16 10:07:31,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808117585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:31,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:31,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:31,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784735068] [2024-11-16 10:07:31,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:31,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:31,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:31,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:31,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:31,098 INFO L87 Difference]: Start difference. First operand 386 states and 564 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:31,325 INFO L93 Difference]: Finished difference Result 872 states and 1277 transitions. [2024-11-16 10:07:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:31,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:31,327 INFO L225 Difference]: With dead ends: 872 [2024-11-16 10:07:31,328 INFO L226 Difference]: Without dead ends: 534 [2024-11-16 10:07:31,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:31,332 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 759 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:31,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-16 10:07:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 414. [2024-11-16 10:07:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 1.4624697336561743) internal successors, (604), 413 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:31,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 604 transitions. [2024-11-16 10:07:31,344 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 604 transitions. Word has length 77 [2024-11-16 10:07:31,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:31,346 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 604 transitions. [2024-11-16 10:07:31,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 604 transitions. [2024-11-16 10:07:31,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:31,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:31,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:31,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 10:07:31,348 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:31,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:31,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1250952787, now seen corresponding path program 1 times [2024-11-16 10:07:31,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:31,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324485860] [2024-11-16 10:07:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:31,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:31,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:31,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324485860] [2024-11-16 10:07:31,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324485860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:31,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:31,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:31,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612822890] [2024-11-16 10:07:31,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:31,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:31,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:31,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:31,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:31,560 INFO L87 Difference]: Start difference. First operand 414 states and 604 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:31,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:31,784 INFO L93 Difference]: Finished difference Result 870 states and 1272 transitions. [2024-11-16 10:07:31,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:31,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:31,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:31,786 INFO L225 Difference]: With dead ends: 870 [2024-11-16 10:07:31,786 INFO L226 Difference]: Without dead ends: 532 [2024-11-16 10:07:31,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:31,787 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 747 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:31,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:31,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-16 10:07:31,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 424. [2024-11-16 10:07:31,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 423 states have (on average 1.458628841607565) internal successors, (617), 423 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 617 transitions. [2024-11-16 10:07:31,796 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 617 transitions. Word has length 77 [2024-11-16 10:07:31,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:31,797 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 617 transitions. [2024-11-16 10:07:31,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:31,798 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 617 transitions. [2024-11-16 10:07:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:31,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:31,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:31,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 10:07:31,800 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:31,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1557638316, now seen corresponding path program 1 times [2024-11-16 10:07:31,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:31,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104649624] [2024-11-16 10:07:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:31,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:32,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:32,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104649624] [2024-11-16 10:07:32,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104649624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:32,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:32,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:32,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077192657] [2024-11-16 10:07:32,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:32,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:32,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:32,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:32,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:32,016 INFO L87 Difference]: Start difference. First operand 424 states and 617 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:32,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:32,304 INFO L93 Difference]: Finished difference Result 868 states and 1267 transitions. [2024-11-16 10:07:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:32,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:32,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:32,307 INFO L225 Difference]: With dead ends: 868 [2024-11-16 10:07:32,307 INFO L226 Difference]: Without dead ends: 530 [2024-11-16 10:07:32,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:32,308 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 729 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:32,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:07:32,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-16 10:07:32,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 452. [2024-11-16 10:07:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.4567627494456763) internal successors, (657), 451 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 657 transitions. [2024-11-16 10:07:32,318 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 657 transitions. Word has length 77 [2024-11-16 10:07:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:32,318 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 657 transitions. [2024-11-16 10:07:32,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 657 transitions. [2024-11-16 10:07:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:32,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:32,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:32,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 10:07:32,320 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:32,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1522992138, now seen corresponding path program 1 times [2024-11-16 10:07:32,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:32,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92165460] [2024-11-16 10:07:32,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:32,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:32,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:32,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92165460] [2024-11-16 10:07:32,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92165460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:32,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:32,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:32,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081358330] [2024-11-16 10:07:32,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:32,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:32,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:32,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:32,521 INFO L87 Difference]: Start difference. First operand 452 states and 657 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:32,714 INFO L93 Difference]: Finished difference Result 866 states and 1262 transitions. [2024-11-16 10:07:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:32,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:32,717 INFO L225 Difference]: With dead ends: 866 [2024-11-16 10:07:32,717 INFO L226 Difference]: Without dead ends: 528 [2024-11-16 10:07:32,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:32,719 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 717 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:32,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:32,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-16 10:07:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 462. [2024-11-16 10:07:32,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.4533622559652928) internal successors, (670), 461 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 670 transitions. [2024-11-16 10:07:32,734 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 670 transitions. Word has length 77 [2024-11-16 10:07:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:32,734 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 670 transitions. [2024-11-16 10:07:32,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 670 transitions. [2024-11-16 10:07:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:32,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:32,736 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:32,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 10:07:32,736 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:32,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1030324288, now seen corresponding path program 1 times [2024-11-16 10:07:32,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:32,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673784546] [2024-11-16 10:07:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:32,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:32,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:32,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673784546] [2024-11-16 10:07:32,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673784546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:32,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:32,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:32,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262242782] [2024-11-16 10:07:32,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:32,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:32,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:32,959 INFO L87 Difference]: Start difference. First operand 462 states and 670 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:33,182 INFO L93 Difference]: Finished difference Result 864 states and 1257 transitions. [2024-11-16 10:07:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:33,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:33,184 INFO L225 Difference]: With dead ends: 864 [2024-11-16 10:07:33,184 INFO L226 Difference]: Without dead ends: 526 [2024-11-16 10:07:33,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:33,185 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 705 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:33,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:33,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-16 10:07:33,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 472. [2024-11-16 10:07:33,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.4501061571125264) internal successors, (683), 471 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 683 transitions. [2024-11-16 10:07:33,194 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 683 transitions. Word has length 77 [2024-11-16 10:07:33,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:33,194 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 683 transitions. [2024-11-16 10:07:33,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:33,194 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 683 transitions. [2024-11-16 10:07:33,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:33,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:33,195 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:33,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 10:07:33,195 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:33,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:33,196 INFO L85 PathProgramCache]: Analyzing trace with hash -637392940, now seen corresponding path program 1 times [2024-11-16 10:07:33,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:33,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579621614] [2024-11-16 10:07:33,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:33,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:33,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579621614] [2024-11-16 10:07:33,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579621614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:33,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:33,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:33,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180761620] [2024-11-16 10:07:33,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:33,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:33,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:33,410 INFO L87 Difference]: Start difference. First operand 472 states and 683 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:33,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:33,636 INFO L93 Difference]: Finished difference Result 862 states and 1252 transitions. [2024-11-16 10:07:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:33,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:33,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:33,638 INFO L225 Difference]: With dead ends: 862 [2024-11-16 10:07:33,638 INFO L226 Difference]: Without dead ends: 524 [2024-11-16 10:07:33,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:33,639 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 689 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:33,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:33,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-16 10:07:33,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 494. [2024-11-16 10:07:33,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 493 states have (on average 1.4482758620689655) internal successors, (714), 493 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:33,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 714 transitions. [2024-11-16 10:07:33,652 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 714 transitions. Word has length 77 [2024-11-16 10:07:33,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:33,652 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 714 transitions. [2024-11-16 10:07:33,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:33,652 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 714 transitions. [2024-11-16 10:07:33,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:33,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:33,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:33,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 10:07:33,653 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:33,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:33,654 INFO L85 PathProgramCache]: Analyzing trace with hash -639254001, now seen corresponding path program 1 times [2024-11-16 10:07:33,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:33,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963333060] [2024-11-16 10:07:33,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:33,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:33,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:33,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963333060] [2024-11-16 10:07:33,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963333060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:33,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:33,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:33,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423008110] [2024-11-16 10:07:33,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:33,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:33,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:33,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:33,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:33,858 INFO L87 Difference]: Start difference. First operand 494 states and 714 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:34,073 INFO L93 Difference]: Finished difference Result 864 states and 1252 transitions. [2024-11-16 10:07:34,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:34,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:34,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:34,075 INFO L225 Difference]: With dead ends: 864 [2024-11-16 10:07:34,075 INFO L226 Difference]: Without dead ends: 522 [2024-11-16 10:07:34,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:34,076 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 683 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:34,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:34,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-16 10:07:34,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 492. [2024-11-16 10:07:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 491 states have (on average 1.4439918533604887) internal successors, (709), 491 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 709 transitions. [2024-11-16 10:07:34,084 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 709 transitions. Word has length 77 [2024-11-16 10:07:34,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:34,085 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 709 transitions. [2024-11-16 10:07:34,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 709 transitions. [2024-11-16 10:07:34,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:34,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:34,086 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:34,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 10:07:34,086 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:34,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:34,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1867233674, now seen corresponding path program 1 times [2024-11-16 10:07:34,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:34,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187211406] [2024-11-16 10:07:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:34,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:34,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:34,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:34,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187211406] [2024-11-16 10:07:34,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187211406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:34,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:34,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:34,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420586833] [2024-11-16 10:07:34,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:34,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:34,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:34,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:34,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:34,321 INFO L87 Difference]: Start difference. First operand 492 states and 709 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:34,516 INFO L93 Difference]: Finished difference Result 864 states and 1249 transitions. [2024-11-16 10:07:34,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:34,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:34,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:34,518 INFO L225 Difference]: With dead ends: 864 [2024-11-16 10:07:34,518 INFO L226 Difference]: Without dead ends: 520 [2024-11-16 10:07:34,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:34,519 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 677 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:34,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-16 10:07:34,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 490. [2024-11-16 10:07:34,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.4396728016359919) internal successors, (704), 489 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 704 transitions. [2024-11-16 10:07:34,528 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 704 transitions. Word has length 77 [2024-11-16 10:07:34,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:34,528 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 704 transitions. [2024-11-16 10:07:34,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,528 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 704 transitions. [2024-11-16 10:07:34,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:34,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:34,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:34,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 10:07:34,529 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:34,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:34,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1125236293, now seen corresponding path program 1 times [2024-11-16 10:07:34,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:34,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145419507] [2024-11-16 10:07:34,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:34,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:34,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:34,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145419507] [2024-11-16 10:07:34,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145419507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:34,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:34,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:34,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748185652] [2024-11-16 10:07:34,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:34,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:34,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:34,743 INFO L87 Difference]: Start difference. First operand 490 states and 704 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:34,926 INFO L93 Difference]: Finished difference Result 864 states and 1246 transitions. [2024-11-16 10:07:34,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:34,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:34,928 INFO L225 Difference]: With dead ends: 864 [2024-11-16 10:07:34,928 INFO L226 Difference]: Without dead ends: 518 [2024-11-16 10:07:34,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:34,929 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 671 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:34,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-16 10:07:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 488. [2024-11-16 10:07:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 487 states have (on average 1.4353182751540041) internal successors, (699), 487 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 699 transitions. [2024-11-16 10:07:34,939 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 699 transitions. Word has length 77 [2024-11-16 10:07:34,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:34,939 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 699 transitions. [2024-11-16 10:07:34,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:34,939 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 699 transitions. [2024-11-16 10:07:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:34,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:34,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:34,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 10:07:34,940 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:34,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:34,941 INFO L85 PathProgramCache]: Analyzing trace with hash 14200699, now seen corresponding path program 1 times [2024-11-16 10:07:34,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:34,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359878164] [2024-11-16 10:07:34,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:34,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:35,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:35,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:35,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359878164] [2024-11-16 10:07:35,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359878164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:35,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:35,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:35,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759993138] [2024-11-16 10:07:35,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:35,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:35,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:35,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:35,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:35,143 INFO L87 Difference]: Start difference. First operand 488 states and 699 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:35,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:35,307 INFO L93 Difference]: Finished difference Result 866 states and 1245 transitions. [2024-11-16 10:07:35,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:35,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:35,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:35,309 INFO L225 Difference]: With dead ends: 866 [2024-11-16 10:07:35,309 INFO L226 Difference]: Without dead ends: 516 [2024-11-16 10:07:35,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:35,310 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 667 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:35,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:07:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-16 10:07:35,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 486. [2024-11-16 10:07:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.4309278350515464) internal successors, (694), 485 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:35,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 694 transitions. [2024-11-16 10:07:35,318 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 694 transitions. Word has length 77 [2024-11-16 10:07:35,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:35,318 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 694 transitions. [2024-11-16 10:07:35,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 694 transitions. [2024-11-16 10:07:35,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:35,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:35,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:35,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 10:07:35,320 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:35,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:35,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1296558671, now seen corresponding path program 1 times [2024-11-16 10:07:35,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:35,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830205345] [2024-11-16 10:07:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:35,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:35,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:35,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:35,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830205345] [2024-11-16 10:07:35,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830205345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:35,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:35,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:35,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762660046] [2024-11-16 10:07:35,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:35,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:35,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:35,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:35,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:35,520 INFO L87 Difference]: Start difference. First operand 486 states and 694 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:35,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:35,691 INFO L93 Difference]: Finished difference Result 868 states and 1244 transitions. [2024-11-16 10:07:35,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:35,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:35,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:35,693 INFO L225 Difference]: With dead ends: 868 [2024-11-16 10:07:35,693 INFO L226 Difference]: Without dead ends: 514 [2024-11-16 10:07:35,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:35,694 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 663 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:35,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:35,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-16 10:07:35,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 484. [2024-11-16 10:07:35,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.4265010351966874) internal successors, (689), 483 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 689 transitions. [2024-11-16 10:07:35,703 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 689 transitions. Word has length 77 [2024-11-16 10:07:35,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:35,703 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 689 transitions. [2024-11-16 10:07:35,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:35,704 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 689 transitions. [2024-11-16 10:07:35,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:35,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:35,704 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:35,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 10:07:35,704 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:35,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:35,705 INFO L85 PathProgramCache]: Analyzing trace with hash -43159321, now seen corresponding path program 1 times [2024-11-16 10:07:35,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:35,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002279053] [2024-11-16 10:07:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:35,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:35,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:35,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002279053] [2024-11-16 10:07:35,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002279053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:35,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:35,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:35,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924375277] [2024-11-16 10:07:35,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:35,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:35,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:35,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:35,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:35,916 INFO L87 Difference]: Start difference. First operand 484 states and 689 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:36,084 INFO L93 Difference]: Finished difference Result 870 states and 1243 transitions. [2024-11-16 10:07:36,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:36,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:36,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:36,086 INFO L225 Difference]: With dead ends: 870 [2024-11-16 10:07:36,086 INFO L226 Difference]: Without dead ends: 512 [2024-11-16 10:07:36,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:36,087 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 659 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:36,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:36,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-16 10:07:36,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 482. [2024-11-16 10:07:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.4220374220374221) internal successors, (684), 481 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 684 transitions. [2024-11-16 10:07:36,095 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 684 transitions. Word has length 77 [2024-11-16 10:07:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:36,095 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 684 transitions. [2024-11-16 10:07:36,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 684 transitions. [2024-11-16 10:07:36,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:36,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:36,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:36,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 10:07:36,096 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:36,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:36,096 INFO L85 PathProgramCache]: Analyzing trace with hash -811396510, now seen corresponding path program 1 times [2024-11-16 10:07:36,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:36,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219399731] [2024-11-16 10:07:36,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:36,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:36,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:36,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219399731] [2024-11-16 10:07:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219399731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:36,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:36,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:36,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928682985] [2024-11-16 10:07:36,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:36,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:36,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:36,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:36,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:36,297 INFO L87 Difference]: Start difference. First operand 482 states and 684 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:36,478 INFO L93 Difference]: Finished difference Result 870 states and 1240 transitions. [2024-11-16 10:07:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:36,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:36,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:36,479 INFO L225 Difference]: With dead ends: 870 [2024-11-16 10:07:36,480 INFO L226 Difference]: Without dead ends: 510 [2024-11-16 10:07:36,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:36,481 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 653 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:36,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:36,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-16 10:07:36,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 480. [2024-11-16 10:07:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 479 states have (on average 1.417536534446764) internal successors, (679), 479 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 679 transitions. [2024-11-16 10:07:36,490 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 679 transitions. Word has length 77 [2024-11-16 10:07:36,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:36,491 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 679 transitions. [2024-11-16 10:07:36,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,491 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 679 transitions. [2024-11-16 10:07:36,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:36,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:36,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:36,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 10:07:36,492 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:36,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:36,492 INFO L85 PathProgramCache]: Analyzing trace with hash -352960227, now seen corresponding path program 1 times [2024-11-16 10:07:36,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:36,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487336712] [2024-11-16 10:07:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:36,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:36,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:36,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487336712] [2024-11-16 10:07:36,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487336712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:36,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:36,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:36,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224610229] [2024-11-16 10:07:36,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:36,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:36,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:36,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:36,698 INFO L87 Difference]: Start difference. First operand 480 states and 679 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:36,925 INFO L93 Difference]: Finished difference Result 870 states and 1237 transitions. [2024-11-16 10:07:36,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:36,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:36,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:36,930 INFO L225 Difference]: With dead ends: 870 [2024-11-16 10:07:36,930 INFO L226 Difference]: Without dead ends: 508 [2024-11-16 10:07:36,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:36,931 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 647 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:36,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-16 10:07:36,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 478. [2024-11-16 10:07:36,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 477 states have (on average 1.4129979035639413) internal successors, (674), 477 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 674 transitions. [2024-11-16 10:07:36,940 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 674 transitions. Word has length 77 [2024-11-16 10:07:36,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:36,940 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 674 transitions. [2024-11-16 10:07:36,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:36,941 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 674 transitions. [2024-11-16 10:07:36,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:36,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:36,941 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:36,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 10:07:36,942 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:36,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:36,942 INFO L85 PathProgramCache]: Analyzing trace with hash 2117643544, now seen corresponding path program 1 times [2024-11-16 10:07:36,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:36,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880754680] [2024-11-16 10:07:36,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:36,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:37,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:37,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:37,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880754680] [2024-11-16 10:07:37,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880754680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:37,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:37,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:37,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728618222] [2024-11-16 10:07:37,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:37,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:37,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:37,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:37,163 INFO L87 Difference]: Start difference. First operand 478 states and 674 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:37,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:37,398 INFO L93 Difference]: Finished difference Result 870 states and 1234 transitions. [2024-11-16 10:07:37,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:37,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:37,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:37,400 INFO L225 Difference]: With dead ends: 870 [2024-11-16 10:07:37,400 INFO L226 Difference]: Without dead ends: 506 [2024-11-16 10:07:37,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:37,401 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 641 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:37,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-16 10:07:37,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 476. [2024-11-16 10:07:37,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 475 states have (on average 1.408421052631579) internal successors, (669), 475 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:37,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 669 transitions. [2024-11-16 10:07:37,409 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 669 transitions. Word has length 77 [2024-11-16 10:07:37,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:37,409 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 669 transitions. [2024-11-16 10:07:37,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:37,409 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 669 transitions. [2024-11-16 10:07:37,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:37,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:37,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:37,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 10:07:37,410 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:37,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:37,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1584790734, now seen corresponding path program 1 times [2024-11-16 10:07:37,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:37,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698864932] [2024-11-16 10:07:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:37,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:37,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:37,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698864932] [2024-11-16 10:07:37,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698864932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:37,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:37,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:37,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832239513] [2024-11-16 10:07:37,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:37,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:37,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:37,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:37,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:37,654 INFO L87 Difference]: Start difference. First operand 476 states and 669 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:37,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:37,825 INFO L93 Difference]: Finished difference Result 872 states and 1233 transitions. [2024-11-16 10:07:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:37,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:37,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:37,827 INFO L225 Difference]: With dead ends: 872 [2024-11-16 10:07:37,827 INFO L226 Difference]: Without dead ends: 504 [2024-11-16 10:07:37,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:37,844 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 637 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:37,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:37,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-16 10:07:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 474. [2024-11-16 10:07:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 473 states have (on average 1.4038054968287526) internal successors, (664), 473 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:37,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 664 transitions. [2024-11-16 10:07:37,852 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 664 transitions. Word has length 77 [2024-11-16 10:07:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:37,853 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 664 transitions. [2024-11-16 10:07:37,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 664 transitions. [2024-11-16 10:07:37,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:37,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:37,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:37,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 10:07:37,854 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:37,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:37,854 INFO L85 PathProgramCache]: Analyzing trace with hash 997753220, now seen corresponding path program 1 times [2024-11-16 10:07:37,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:37,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263962744] [2024-11-16 10:07:37,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:37,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:38,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:38,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:38,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263962744] [2024-11-16 10:07:38,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263962744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:38,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:38,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:38,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199419790] [2024-11-16 10:07:38,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:38,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:38,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:38,072 INFO L87 Difference]: Start difference. First operand 474 states and 664 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:38,284 INFO L93 Difference]: Finished difference Result 874 states and 1232 transitions. [2024-11-16 10:07:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:38,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:38,286 INFO L225 Difference]: With dead ends: 874 [2024-11-16 10:07:38,286 INFO L226 Difference]: Without dead ends: 502 [2024-11-16 10:07:38,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:38,287 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 633 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:38,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:38,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-16 10:07:38,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 472. [2024-11-16 10:07:38,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3991507430997876) internal successors, (659), 471 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 659 transitions. [2024-11-16 10:07:38,301 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 659 transitions. Word has length 77 [2024-11-16 10:07:38,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:38,301 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 659 transitions. [2024-11-16 10:07:38,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 659 transitions. [2024-11-16 10:07:38,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:38,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:38,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:38,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 10:07:38,302 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:38,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:38,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1221824577, now seen corresponding path program 1 times [2024-11-16 10:07:38,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:38,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58078675] [2024-11-16 10:07:38,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:38,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:38,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:38,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58078675] [2024-11-16 10:07:38,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58078675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:38,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:38,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:38,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982035111] [2024-11-16 10:07:38,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:38,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:38,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:38,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:38,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:38,517 INFO L87 Difference]: Start difference. First operand 472 states and 659 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:38,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:38,678 INFO L93 Difference]: Finished difference Result 874 states and 1229 transitions. [2024-11-16 10:07:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:38,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:38,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:38,680 INFO L225 Difference]: With dead ends: 874 [2024-11-16 10:07:38,680 INFO L226 Difference]: Without dead ends: 500 [2024-11-16 10:07:38,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:38,681 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 627 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:38,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:07:38,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-16 10:07:38,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 470. [2024-11-16 10:07:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.394456289978678) internal successors, (654), 469 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:38,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 654 transitions. [2024-11-16 10:07:38,688 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 654 transitions. Word has length 77 [2024-11-16 10:07:38,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:38,688 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 654 transitions. [2024-11-16 10:07:38,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 654 transitions. [2024-11-16 10:07:38,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:38,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:38,689 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:38,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 10:07:38,689 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:38,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:38,690 INFO L85 PathProgramCache]: Analyzing trace with hash 362658618, now seen corresponding path program 1 times [2024-11-16 10:07:38,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:38,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043046380] [2024-11-16 10:07:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:38,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:38,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:38,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043046380] [2024-11-16 10:07:38,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043046380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:38,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:38,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:38,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713353755] [2024-11-16 10:07:38,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:38,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:38,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:38,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:38,889 INFO L87 Difference]: Start difference. First operand 470 states and 654 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:39,056 INFO L93 Difference]: Finished difference Result 874 states and 1226 transitions. [2024-11-16 10:07:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:39,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:39,057 INFO L225 Difference]: With dead ends: 874 [2024-11-16 10:07:39,057 INFO L226 Difference]: Without dead ends: 498 [2024-11-16 10:07:39,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:39,058 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 621 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:39,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:07:39,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-16 10:07:39,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 468. [2024-11-16 10:07:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 467 states have (on average 1.3897216274089936) internal successors, (649), 467 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 649 transitions. [2024-11-16 10:07:39,067 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 649 transitions. Word has length 77 [2024-11-16 10:07:39,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:39,068 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 649 transitions. [2024-11-16 10:07:39,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,068 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 649 transitions. [2024-11-16 10:07:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:39,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:39,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:39,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 10:07:39,068 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:39,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1662381067, now seen corresponding path program 1 times [2024-11-16 10:07:39,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:39,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806907918] [2024-11-16 10:07:39,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:39,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:39,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:39,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:39,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806907918] [2024-11-16 10:07:39,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806907918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:39,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:39,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:39,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583587346] [2024-11-16 10:07:39,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:39,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:39,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:39,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:39,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:39,258 INFO L87 Difference]: Start difference. First operand 468 states and 649 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:39,434 INFO L93 Difference]: Finished difference Result 874 states and 1223 transitions. [2024-11-16 10:07:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:39,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:39,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:39,435 INFO L225 Difference]: With dead ends: 874 [2024-11-16 10:07:39,435 INFO L226 Difference]: Without dead ends: 496 [2024-11-16 10:07:39,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:39,436 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 615 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:39,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:39,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-16 10:07:39,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 466. [2024-11-16 10:07:39,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 465 states have (on average 1.3849462365591398) internal successors, (644), 465 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 644 transitions. [2024-11-16 10:07:39,443 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 644 transitions. Word has length 77 [2024-11-16 10:07:39,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:39,444 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 644 transitions. [2024-11-16 10:07:39,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,444 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 644 transitions. [2024-11-16 10:07:39,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:39,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:39,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:39,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 10:07:39,445 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:39,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:39,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1714335019, now seen corresponding path program 1 times [2024-11-16 10:07:39,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:39,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897098332] [2024-11-16 10:07:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:39,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:39,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:39,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897098332] [2024-11-16 10:07:39,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897098332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:39,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:39,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723107778] [2024-11-16 10:07:39,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:39,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:39,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:39,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:39,660 INFO L87 Difference]: Start difference. First operand 466 states and 644 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:39,823 INFO L93 Difference]: Finished difference Result 876 states and 1222 transitions. [2024-11-16 10:07:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:39,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:39,824 INFO L225 Difference]: With dead ends: 876 [2024-11-16 10:07:39,824 INFO L226 Difference]: Without dead ends: 494 [2024-11-16 10:07:39,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:39,825 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 611 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:39,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:07:39,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-16 10:07:39,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 464. [2024-11-16 10:07:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.3801295896328294) internal successors, (639), 463 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 639 transitions. [2024-11-16 10:07:39,833 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 639 transitions. Word has length 77 [2024-11-16 10:07:39,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:39,833 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 639 transitions. [2024-11-16 10:07:39,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 639 transitions. [2024-11-16 10:07:39,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:39,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:39,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:39,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 10:07:39,834 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:39,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:39,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1551350625, now seen corresponding path program 1 times [2024-11-16 10:07:39,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:39,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610555097] [2024-11-16 10:07:39,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:39,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:40,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:40,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610555097] [2024-11-16 10:07:40,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610555097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:40,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:40,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:40,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079461160] [2024-11-16 10:07:40,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:40,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:40,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:40,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:40,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:40,050 INFO L87 Difference]: Start difference. First operand 464 states and 639 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:40,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:40,212 INFO L93 Difference]: Finished difference Result 878 states and 1221 transitions. [2024-11-16 10:07:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:40,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:40,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:40,214 INFO L225 Difference]: With dead ends: 878 [2024-11-16 10:07:40,214 INFO L226 Difference]: Without dead ends: 492 [2024-11-16 10:07:40,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:40,215 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 607 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:40,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:07:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-16 10:07:40,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 462. [2024-11-16 10:07:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.3752711496746204) internal successors, (634), 461 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:40,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 634 transitions. [2024-11-16 10:07:40,222 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 634 transitions. Word has length 77 [2024-11-16 10:07:40,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:40,222 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 634 transitions. [2024-11-16 10:07:40,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:40,222 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 634 transitions. [2024-11-16 10:07:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:40,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:40,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:40,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 10:07:40,223 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:40,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:40,224 INFO L85 PathProgramCache]: Analyzing trace with hash -830292329, now seen corresponding path program 1 times [2024-11-16 10:07:40,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:40,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849905429] [2024-11-16 10:07:40,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:40,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:40,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:40,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849905429] [2024-11-16 10:07:40,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849905429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:40,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:40,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:40,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495755600] [2024-11-16 10:07:40,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:40,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:40,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:40,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:40,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:40,444 INFO L87 Difference]: Start difference. First operand 462 states and 634 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:40,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:40,636 INFO L93 Difference]: Finished difference Result 880 states and 1220 transitions. [2024-11-16 10:07:40,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:40,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:40,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:40,638 INFO L225 Difference]: With dead ends: 880 [2024-11-16 10:07:40,638 INFO L226 Difference]: Without dead ends: 490 [2024-11-16 10:07:40,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:40,639 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 603 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:40,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:40,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-16 10:07:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 460. [2024-11-16 10:07:40,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.3703703703703705) internal successors, (629), 459 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 629 transitions. [2024-11-16 10:07:40,651 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 629 transitions. Word has length 77 [2024-11-16 10:07:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:40,651 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 629 transitions. [2024-11-16 10:07:40,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 629 transitions. [2024-11-16 10:07:40,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 10:07:40,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:40,652 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:40,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 10:07:40,653 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:40,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1331973102, now seen corresponding path program 1 times [2024-11-16 10:07:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:40,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946626864] [2024-11-16 10:07:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:40,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:40,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:40,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946626864] [2024-11-16 10:07:40,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946626864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:40,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:07:40,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:07:40,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009900184] [2024-11-16 10:07:40,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:40,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:40,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:40,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:07:40,874 INFO L87 Difference]: Start difference. First operand 460 states and 629 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:41,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:41,067 INFO L93 Difference]: Finished difference Result 811 states and 1143 transitions. [2024-11-16 10:07:41,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:07:41,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 10:07:41,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:41,069 INFO L225 Difference]: With dead ends: 811 [2024-11-16 10:07:41,069 INFO L226 Difference]: Without dead ends: 419 [2024-11-16 10:07:41,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:07:41,070 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 569 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:41,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 973 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:07:41,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-16 10:07:41,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 406. [2024-11-16 10:07:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.4148148148148147) internal successors, (573), 405 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 573 transitions. [2024-11-16 10:07:41,077 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 573 transitions. Word has length 77 [2024-11-16 10:07:41,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:41,077 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 573 transitions. [2024-11-16 10:07:41,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:41,078 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 573 transitions. [2024-11-16 10:07:41,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 10:07:41,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:41,081 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:41,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 10:07:41,081 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:41,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:41,082 INFO L85 PathProgramCache]: Analyzing trace with hash -53023140, now seen corresponding path program 1 times [2024-11-16 10:07:41,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:41,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212886984] [2024-11-16 10:07:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:41,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 56 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:43,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:43,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212886984] [2024-11-16 10:07:43,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212886984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 10:07:43,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098037633] [2024-11-16 10:07:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:43,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 10:07:43,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:07:43,676 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) [2024-11-16 10:07:43,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 10:07:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:44,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 2386 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 10:07:44,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 10:07:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 10:07:44,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 10:07:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098037633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:07:44,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 10:07:44,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-16 10:07:44,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816722913] [2024-11-16 10:07:44,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:44,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:44,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:44,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:44,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-16 10:07:44,773 INFO L87 Difference]: Start difference. First operand 406 states and 573 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:45,374 INFO L93 Difference]: Finished difference Result 868 states and 1251 transitions. [2024-11-16 10:07:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:07:45,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 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 216 [2024-11-16 10:07:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:45,376 INFO L225 Difference]: With dead ends: 868 [2024-11-16 10:07:45,376 INFO L226 Difference]: Without dead ends: 530 [2024-11-16 10:07:45,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:07:45,377 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 130 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:45,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1183 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 10:07:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-16 10:07:45,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 500. [2024-11-16 10:07:45,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 1.4288577154308617) internal successors, (713), 499 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:45,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 713 transitions. [2024-11-16 10:07:45,385 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 713 transitions. Word has length 216 [2024-11-16 10:07:45,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:45,386 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 713 transitions. [2024-11-16 10:07:45,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:45,386 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 713 transitions. [2024-11-16 10:07:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 10:07:45,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:45,387 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:45,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 10:07:45,588 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,SelfDestructingSolverStorable32 [2024-11-16 10:07:45,591 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:45,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:45,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1956156838, now seen corresponding path program 1 times [2024-11-16 10:07:45,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:45,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720134357] [2024-11-16 10:07:45,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:45,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 52 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:48,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:07:48,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720134357] [2024-11-16 10:07:48,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720134357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 10:07:48,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743724365] [2024-11-16 10:07:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:48,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 10:07:48,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:07:48,770 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) [2024-11-16 10:07:48,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 10:07:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:07:49,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 2386 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 10:07:49,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 10:07:50,124 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:07:50,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 10:07:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 10:07:50,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743724365] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 10:07:50,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 10:07:50,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12, 6] total 17 [2024-11-16 10:07:50,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165744148] [2024-11-16 10:07:50,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:07:50,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:07:50,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:07:50,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:07:50,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-16 10:07:50,322 INFO L87 Difference]: Start difference. First operand 500 states and 713 transitions. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:50,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:07:50,911 INFO L93 Difference]: Finished difference Result 1134 states and 1647 transitions. [2024-11-16 10:07:50,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:07:50,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 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 216 [2024-11-16 10:07:50,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:07:50,914 INFO L225 Difference]: With dead ends: 1134 [2024-11-16 10:07:50,914 INFO L226 Difference]: Without dead ends: 702 [2024-11-16 10:07:50,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-16 10:07:50,915 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 120 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:07:50,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1159 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:07:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-16 10:07:50,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 498. [2024-11-16 10:07:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 497 states have (on average 1.4285714285714286) internal successors, (710), 497 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 710 transitions. [2024-11-16 10:07:50,923 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 710 transitions. Word has length 216 [2024-11-16 10:07:50,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:07:50,923 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 710 transitions. [2024-11-16 10:07:50,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:07:50,923 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 710 transitions. [2024-11-16 10:07:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 10:07:50,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:07:50,925 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:07:50,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 10:07:51,125 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,SelfDestructingSolverStorable33 [2024-11-16 10:07:51,126 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:07:51,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:07:51,127 INFO L85 PathProgramCache]: Analyzing trace with hash -367693328, now seen corresponding path program 1 times [2024-11-16 10:07:51,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:07:51,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207814192] [2024-11-16 10:07:51,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:07:51,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:07:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat