./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_non-pipelined-microprocessor.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_non-pipelined-microprocessor.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 013fc4a889617293119ec23d82d2fd495e032e9bab1929da87247ff74d1355ed --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 06:03:30,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 06:03:30,593 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 06:03:30,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 06:03:30,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 06:03:30,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 06:03:30,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 06:03:30,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 06:03:30,626 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 06:03:30,626 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 06:03:30,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 06:03:30,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 06:03:30,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 06:03:30,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 06:03:30,629 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 06:03:30,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 06:03:30,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 06:03:30,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 06:03:30,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 06:03:30,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 06:03:30,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 06:03:30,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 06:03:30,633 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 06:03:30,633 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 06:03:30,634 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 06:03:30,634 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 06:03:30,634 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 06:03:30,634 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 06:03:30,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 06:03:30,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 06:03:30,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 06:03:30,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 06:03:30,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 06:03:30,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 06:03:30,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 06:03:30,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 06:03:30,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 06:03:30,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 06:03:30,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 06:03:30,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 013fc4a889617293119ec23d82d2fd495e032e9bab1929da87247ff74d1355ed [2024-11-22 06:03:30,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 06:03:30,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 06:03:30,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 06:03:30,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 06:03:30,871 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 06:03:30,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_non-pipelined-microprocessor.c [2024-11-22 06:03:32,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 06:03:32,453 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 06:03:32,454 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_non-pipelined-microprocessor.c [2024-11-22 06:03:32,472 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e57d88322/1fa637493250400c8f8429aed9e9117f/FLAG2fb267f90 [2024-11-22 06:03:32,486 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e57d88322/1fa637493250400c8f8429aed9e9117f [2024-11-22 06:03:32,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 06:03:32,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 06:03:32,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 06:03:32,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 06:03:32,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 06:03:32,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:03:32" (1/1) ... [2024-11-22 06:03:32,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113bdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:32, skipping insertion in model container [2024-11-22 06:03:32,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:03:32" (1/1) ... [2024-11-22 06:03:32,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 06:03:32,701 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.v_non-pipelined-microprocessor.c[1270,1283] [2024-11-22 06:03:32,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 06:03:32,909 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 06:03:32,920 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.v_non-pipelined-microprocessor.c[1270,1283] [2024-11-22 06:03:33,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 06:03:33,029 INFO L204 MainTranslator]: Completed translation [2024-11-22 06:03:33,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33 WrapperNode [2024-11-22 06:03:33,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 06:03:33,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 06:03:33,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 06:03:33,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 06:03:33,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,147 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1101 [2024-11-22 06:03:33,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 06:03:33,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 06:03:33,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 06:03:33,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 06:03:33,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,245 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 06:03:33,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 06:03:33,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 06:03:33,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 06:03:33,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 06:03:33,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (1/1) ... [2024-11-22 06:03:33,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 06:03:33,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:03:33,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 06:03:33,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 06:03:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 06:03:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 06:03:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 06:03:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 06:03:33,596 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 06:03:33,598 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 06:03:34,508 INFO L? ?]: Removed 643 outVars from TransFormulas that were not future-live. [2024-11-22 06:03:34,508 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 06:03:34,531 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 06:03:34,531 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 06:03:34,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:03:34 BoogieIcfgContainer [2024-11-22 06:03:34,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 06:03:34,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 06:03:34,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 06:03:34,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 06:03:34,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:03:32" (1/3) ... [2024-11-22 06:03:34,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72db085c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:03:34, skipping insertion in model container [2024-11-22 06:03:34,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:33" (2/3) ... [2024-11-22 06:03:34,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72db085c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:03:34, skipping insertion in model container [2024-11-22 06:03:34,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:03:34" (3/3) ... [2024-11-22 06:03:34,541 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_non-pipelined-microprocessor.c [2024-11-22 06:03:34,556 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 06:03:34,557 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 06:03:34,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 06:03:34,630 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;@6d69817b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 06:03:34,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 06:03:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 255 states, 253 states have (on average 1.4980237154150198) internal successors, (379), 254 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 06:03:34,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:34,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:34,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:34,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1669955595, now seen corresponding path program 1 times [2024-11-22 06:03:34,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:34,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373532879] [2024-11-22 06:03:34,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:34,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:36,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:36,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373532879] [2024-11-22 06:03:36,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373532879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:36,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:36,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:03:36,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609553529] [2024-11-22 06:03:36,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:36,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:03:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:36,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:03:36,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:03:36,100 INFO L87 Difference]: Start difference. First operand has 255 states, 253 states have (on average 1.4980237154150198) internal successors, (379), 254 states have internal predecessors, (379), 0 states have call successors, (0), 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 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:36,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:36,166 INFO L93 Difference]: Finished difference Result 475 states and 709 transitions. [2024-11-22 06:03:36,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:03:36,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-22 06:03:36,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:36,192 INFO L225 Difference]: With dead ends: 475 [2024-11-22 06:03:36,195 INFO L226 Difference]: Without dead ends: 254 [2024-11-22 06:03:36,203 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 [2024-11-22 06:03:36,206 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 0 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:36,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1113 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:03:36,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-22 06:03:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2024-11-22 06:03:36,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.4901185770750989) internal successors, (377), 253 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 377 transitions. [2024-11-22 06:03:36,263 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 377 transitions. Word has length 77 [2024-11-22 06:03:36,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:36,263 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 377 transitions. [2024-11-22 06:03:36,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 377 transitions. [2024-11-22 06:03:36,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 06:03:36,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:36,266 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:36,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 06:03:36,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:36,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:36,267 INFO L85 PathProgramCache]: Analyzing trace with hash -227320272, now seen corresponding path program 1 times [2024-11-22 06:03:36,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:36,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672510245] [2024-11-22 06:03:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:36,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:36,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:36,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672510245] [2024-11-22 06:03:36,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672510245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:36,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:36,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:03:36,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56027325] [2024-11-22 06:03:36,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:36,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:03:36,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:36,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:03:36,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:03:36,842 INFO L87 Difference]: Start difference. First operand 254 states and 377 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:36,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:36,887 INFO L93 Difference]: Finished difference Result 476 states and 707 transitions. [2024-11-22 06:03:36,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:03:36,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-22 06:03:36,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:36,889 INFO L225 Difference]: With dead ends: 476 [2024-11-22 06:03:36,889 INFO L226 Difference]: Without dead ends: 256 [2024-11-22 06:03:36,890 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 [2024-11-22 06:03:36,891 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 0 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:36,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1109 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:03:36,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-22 06:03:36,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-11-22 06:03:36,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.4862745098039216) internal successors, (379), 255 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:36,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 379 transitions. [2024-11-22 06:03:36,917 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 379 transitions. Word has length 78 [2024-11-22 06:03:36,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:36,917 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 379 transitions. [2024-11-22 06:03:36,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 379 transitions. [2024-11-22 06:03:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 06:03:36,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:36,920 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:36,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 06:03:36,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:36,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash 445040686, now seen corresponding path program 1 times [2024-11-22 06:03:36,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:36,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295048524] [2024-11-22 06:03:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:36,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:37,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:37,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295048524] [2024-11-22 06:03:37,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295048524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:37,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:37,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 06:03:37,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838611773] [2024-11-22 06:03:37,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:37,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 06:03:37,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:37,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 06:03:37,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:03:37,791 INFO L87 Difference]: Start difference. First operand 256 states and 379 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:37,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:37,861 INFO L93 Difference]: Finished difference Result 482 states and 714 transitions. [2024-11-22 06:03:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:03:37,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-22 06:03:37,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:37,864 INFO L225 Difference]: With dead ends: 482 [2024-11-22 06:03:37,865 INFO L226 Difference]: Without dead ends: 260 [2024-11-22 06:03:37,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:03:37,871 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 310 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:37,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1106 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:03:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-22 06:03:37,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 259. [2024-11-22 06:03:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.4806201550387597) internal successors, (382), 258 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:37,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 382 transitions. [2024-11-22 06:03:37,888 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 382 transitions. Word has length 79 [2024-11-22 06:03:37,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:37,888 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 382 transitions. [2024-11-22 06:03:37,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:37,889 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 382 transitions. [2024-11-22 06:03:37,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 06:03:37,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:37,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:37,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 06:03:37,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:37,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:37,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1819062349, now seen corresponding path program 1 times [2024-11-22 06:03:37,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:37,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645418476] [2024-11-22 06:03:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:37,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:43,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:43,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:43,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645418476] [2024-11-22 06:03:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645418476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:43,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:43,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 06:03:43,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462046357] [2024-11-22 06:03:43,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:43,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 06:03:43,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:43,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 06:03:43,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:03:43,905 INFO L87 Difference]: Start difference. First operand 259 states and 382 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:46,382 INFO L93 Difference]: Finished difference Result 609 states and 895 transitions. [2024-11-22 06:03:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:03:46,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-22 06:03:46,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:46,385 INFO L225 Difference]: With dead ends: 609 [2024-11-22 06:03:46,386 INFO L226 Difference]: Without dead ends: 384 [2024-11-22 06:03:46,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-22 06:03:46,391 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 694 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:46,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1228 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-22 06:03:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-22 06:03:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 261. [2024-11-22 06:03:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.476923076923077) internal successors, (384), 260 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 384 transitions. [2024-11-22 06:03:46,399 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 384 transitions. Word has length 80 [2024-11-22 06:03:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:46,399 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 384 transitions. [2024-11-22 06:03:46,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 384 transitions. [2024-11-22 06:03:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 06:03:46,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:46,401 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, 1, 1, 1, 1, 1] [2024-11-22 06:03:46,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 06:03:46,401 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:46,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:46,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1115207629, now seen corresponding path program 1 times [2024-11-22 06:03:46,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:46,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364942316] [2024-11-22 06:03:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:46,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:47,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:47,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:47,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364942316] [2024-11-22 06:03:47,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364942316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:47,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:47,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:03:47,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925247131] [2024-11-22 06:03:47,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:47,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:03:47,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:03:47,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:03:47,026 INFO L87 Difference]: Start difference. First operand 261 states and 384 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:47,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:47,526 INFO L93 Difference]: Finished difference Result 509 states and 749 transitions. [2024-11-22 06:03:47,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:03:47,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-22 06:03:47,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:47,527 INFO L225 Difference]: With dead ends: 509 [2024-11-22 06:03:47,527 INFO L226 Difference]: Without dead ends: 282 [2024-11-22 06:03:47,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:03:47,529 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 376 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:47,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 718 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 06:03:47,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-22 06:03:47,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 263. [2024-11-22 06:03:47,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.4732824427480915) internal successors, (386), 262 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 386 transitions. [2024-11-22 06:03:47,539 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 386 transitions. Word has length 81 [2024-11-22 06:03:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:47,540 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 386 transitions. [2024-11-22 06:03:47,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 386 transitions. [2024-11-22 06:03:47,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 06:03:47,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:47,542 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:47,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 06:03:47,542 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:47,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:47,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1094728716, now seen corresponding path program 1 times [2024-11-22 06:03:47,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:47,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884377850] [2024-11-22 06:03:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:47,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:50,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:50,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:50,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884377850] [2024-11-22 06:03:50,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884377850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:50,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:50,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 06:03:50,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837545115] [2024-11-22 06:03:50,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:50,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 06:03:50,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:50,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 06:03:50,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-22 06:03:50,938 INFO L87 Difference]: Start difference. First operand 263 states and 386 transitions. Second operand has 16 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:52,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:52,950 INFO L93 Difference]: Finished difference Result 674 states and 986 transitions. [2024-11-22 06:03:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 06:03:52,951 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-22 06:03:52,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:52,956 INFO L225 Difference]: With dead ends: 674 [2024-11-22 06:03:52,957 INFO L226 Difference]: Without dead ends: 445 [2024-11-22 06:03:52,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2024-11-22 06:03:52,960 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 869 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 2891 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:52,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1907 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2891 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 06:03:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-22 06:03:52,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 282. [2024-11-22 06:03:52,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.4768683274021353) internal successors, (415), 281 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:52,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 415 transitions. [2024-11-22 06:03:52,973 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 415 transitions. Word has length 81 [2024-11-22 06:03:52,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:52,973 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 415 transitions. [2024-11-22 06:03:52,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 415 transitions. [2024-11-22 06:03:52,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 06:03:52,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:52,974 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:52,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 06:03:52,975 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:52,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:52,975 INFO L85 PathProgramCache]: Analyzing trace with hash 581725629, now seen corresponding path program 1 times [2024-11-22 06:03:52,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:52,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561349186] [2024-11-22 06:03:52,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:52,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:53,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:53,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561349186] [2024-11-22 06:03:53,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561349186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:53,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:53,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:03:53,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141615099] [2024-11-22 06:03:53,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:53,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:03:53,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:03:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:03:53,383 INFO L87 Difference]: Start difference. First operand 282 states and 415 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:53,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:53,463 INFO L93 Difference]: Finished difference Result 689 states and 1011 transitions. [2024-11-22 06:03:53,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:03:53,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-22 06:03:53,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:53,465 INFO L225 Difference]: With dead ends: 689 [2024-11-22 06:03:53,465 INFO L226 Difference]: Without dead ends: 441 [2024-11-22 06:03:53,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:03:53,466 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 222 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:53,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1401 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:03:53,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-22 06:03:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 288. [2024-11-22 06:03:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.4738675958188154) internal successors, (423), 287 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 423 transitions. [2024-11-22 06:03:53,474 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 423 transitions. Word has length 82 [2024-11-22 06:03:53,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:53,475 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 423 transitions. [2024-11-22 06:03:53,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 423 transitions. [2024-11-22 06:03:53,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 06:03:53,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:53,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:53,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 06:03:53,476 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:53,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1577801930, now seen corresponding path program 1 times [2024-11-22 06:03:53,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:53,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370089446] [2024-11-22 06:03:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:53,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:53,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:53,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:53,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370089446] [2024-11-22 06:03:53,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370089446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:53,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:53,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:03:53,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001468213] [2024-11-22 06:03:53,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:53,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:03:53,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:53,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:03:53,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:03:53,977 INFO L87 Difference]: Start difference. First operand 288 states and 423 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:54,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:54,440 INFO L93 Difference]: Finished difference Result 557 states and 819 transitions. [2024-11-22 06:03:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:03:54,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-22 06:03:54,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:54,444 INFO L225 Difference]: With dead ends: 557 [2024-11-22 06:03:54,444 INFO L226 Difference]: Without dead ends: 309 [2024-11-22 06:03:54,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:03:54,445 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 35 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:54,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 1206 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 06:03:54,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-22 06:03:54,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 288. [2024-11-22 06:03:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.4738675958188154) internal successors, (423), 287 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 423 transitions. [2024-11-22 06:03:54,452 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 423 transitions. Word has length 82 [2024-11-22 06:03:54,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:54,453 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 423 transitions. [2024-11-22 06:03:54,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 423 transitions. [2024-11-22 06:03:54,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 06:03:54,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:54,454 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:54,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 06:03:54,455 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:54,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:54,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1389606502, now seen corresponding path program 1 times [2024-11-22 06:03:54,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:54,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856281649] [2024-11-22 06:03:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:54,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:55,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:55,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856281649] [2024-11-22 06:03:55,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856281649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:55,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:55,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:03:55,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059959694] [2024-11-22 06:03:55,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:55,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:03:55,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:55,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:03:55,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:03:55,234 INFO L87 Difference]: Start difference. First operand 288 states and 423 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:55,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:03:55,926 INFO L93 Difference]: Finished difference Result 656 states and 960 transitions. [2024-11-22 06:03:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:03:55,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-22 06:03:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:03:55,929 INFO L225 Difference]: With dead ends: 656 [2024-11-22 06:03:55,929 INFO L226 Difference]: Without dead ends: 408 [2024-11-22 06:03:55,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:03:55,930 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 519 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 06:03:55,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 929 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 06:03:55,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-22 06:03:55,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 291. [2024-11-22 06:03:55,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 290 states have (on average 1.4689655172413794) internal successors, (426), 290 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:55,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 426 transitions. [2024-11-22 06:03:55,937 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 426 transitions. Word has length 82 [2024-11-22 06:03:55,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:03:55,938 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 426 transitions. [2024-11-22 06:03:55,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:03:55,938 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 426 transitions. [2024-11-22 06:03:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 06:03:55,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:03:55,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:03:55,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 06:03:55,939 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:03:55,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:03:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1449177706, now seen corresponding path program 1 times [2024-11-22 06:03:55,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:03:55,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181361656] [2024-11-22 06:03:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:03:55,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:03:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:03:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:03:59,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:03:59,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181361656] [2024-11-22 06:03:59,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181361656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:03:59,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:03:59,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-22 06:03:59,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168645088] [2024-11-22 06:03:59,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:03:59,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 06:03:59,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:03:59,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 06:03:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-22 06:03:59,749 INFO L87 Difference]: Start difference. First operand 291 states and 426 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:01,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:01,588 INFO L93 Difference]: Finished difference Result 720 states and 1049 transitions. [2024-11-22 06:04:01,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 06:04:01,589 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-22 06:04:01,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:01,591 INFO L225 Difference]: With dead ends: 720 [2024-11-22 06:04:01,591 INFO L226 Difference]: Without dead ends: 469 [2024-11-22 06:04:01,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2024-11-22 06:04:01,592 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 832 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:01,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 3848 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 06:04:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-22 06:04:01,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 303. [2024-11-22 06:04:01,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4701986754966887) internal successors, (444), 302 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 444 transitions. [2024-11-22 06:04:01,601 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 444 transitions. Word has length 82 [2024-11-22 06:04:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:01,602 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 444 transitions. [2024-11-22 06:04:01,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 444 transitions. [2024-11-22 06:04:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 06:04:01,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:01,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:01,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 06:04:01,604 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:01,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:01,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1093418607, now seen corresponding path program 1 times [2024-11-22 06:04:01,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:01,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743885169] [2024-11-22 06:04:01,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:01,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:01,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743885169] [2024-11-22 06:04:01,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743885169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:01,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:01,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:01,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358214431] [2024-11-22 06:04:01,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:01,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:01,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:01,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:01,952 INFO L87 Difference]: Start difference. First operand 303 states and 444 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:02,011 INFO L93 Difference]: Finished difference Result 732 states and 1070 transitions. [2024-11-22 06:04:02,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:04:02,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-22 06:04:02,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:02,014 INFO L225 Difference]: With dead ends: 732 [2024-11-22 06:04:02,014 INFO L226 Difference]: Without dead ends: 469 [2024-11-22 06:04:02,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:04:02,016 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 214 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:02,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1401 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:04:02,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-22 06:04:02,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 311. [2024-11-22 06:04:02,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.4645161290322581) internal successors, (454), 310 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 454 transitions. [2024-11-22 06:04:02,025 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 454 transitions. Word has length 82 [2024-11-22 06:04:02,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:02,025 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 454 transitions. [2024-11-22 06:04:02,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:02,026 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 454 transitions. [2024-11-22 06:04:02,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 06:04:02,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:02,027 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:02,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 06:04:02,027 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:02,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:02,027 INFO L85 PathProgramCache]: Analyzing trace with hash -536700682, now seen corresponding path program 1 times [2024-11-22 06:04:02,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:02,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473997964] [2024-11-22 06:04:02,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:02,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:02,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:02,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473997964] [2024-11-22 06:04:02,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473997964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:02,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:02,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:02,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811617611] [2024-11-22 06:04:02,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:02,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:02,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:02,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:02,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:02,370 INFO L87 Difference]: Start difference. First operand 311 states and 454 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:02,427 INFO L93 Difference]: Finished difference Result 717 states and 1045 transitions. [2024-11-22 06:04:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:04:02,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-22 06:04:02,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:02,429 INFO L225 Difference]: With dead ends: 717 [2024-11-22 06:04:02,429 INFO L226 Difference]: Without dead ends: 450 [2024-11-22 06:04:02,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:04:02,430 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 212 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:02,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1401 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:04:02,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-22 06:04:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 307. [2024-11-22 06:04:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.4640522875816993) internal successors, (448), 306 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:02,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 448 transitions. [2024-11-22 06:04:02,437 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 448 transitions. Word has length 82 [2024-11-22 06:04:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:02,438 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 448 transitions. [2024-11-22 06:04:02,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 448 transitions. [2024-11-22 06:04:02,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-22 06:04:02,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:02,439 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:02,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 06:04:02,439 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:02,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:02,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1449839351, now seen corresponding path program 1 times [2024-11-22 06:04:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:02,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131541638] [2024-11-22 06:04:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:02,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:03,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:03,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:03,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131541638] [2024-11-22 06:04:03,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131541638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:03,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:03,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:03,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736579875] [2024-11-22 06:04:03,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:03,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:03,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:03,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:03,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:03,105 INFO L87 Difference]: Start difference. First operand 307 states and 448 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:03,674 INFO L93 Difference]: Finished difference Result 589 states and 862 transitions. [2024-11-22 06:04:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:04:03,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-22 06:04:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:03,676 INFO L225 Difference]: With dead ends: 589 [2024-11-22 06:04:03,676 INFO L226 Difference]: Without dead ends: 326 [2024-11-22 06:04:03,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:03,679 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 31 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:03,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1246 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 06:04:03,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-22 06:04:03,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 311. [2024-11-22 06:04:03,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.461290322580645) internal successors, (453), 310 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:03,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 453 transitions. [2024-11-22 06:04:03,685 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 453 transitions. Word has length 83 [2024-11-22 06:04:03,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:03,686 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 453 transitions. [2024-11-22 06:04:03,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 453 transitions. [2024-11-22 06:04:03,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-22 06:04:03,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:03,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:03,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 06:04:03,687 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:03,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:03,688 INFO L85 PathProgramCache]: Analyzing trace with hash 502456058, now seen corresponding path program 1 times [2024-11-22 06:04:03,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:03,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227499443] [2024-11-22 06:04:03,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:03,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:03,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:03,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:03,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227499443] [2024-11-22 06:04:03,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227499443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:03,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:03,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 06:04:03,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46844090] [2024-11-22 06:04:03,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:03,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 06:04:03,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:03,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 06:04:03,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:04:03,967 INFO L87 Difference]: Start difference. First operand 311 states and 453 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:04,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:04,024 INFO L93 Difference]: Finished difference Result 703 states and 1021 transitions. [2024-11-22 06:04:04,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:04:04,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-22 06:04:04,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:04,026 INFO L225 Difference]: With dead ends: 703 [2024-11-22 06:04:04,026 INFO L226 Difference]: Without dead ends: 436 [2024-11-22 06:04:04,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:04,027 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 201 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:04,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1401 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:04:04,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-22 06:04:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 313. [2024-11-22 06:04:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.4583333333333333) internal successors, (455), 312 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 455 transitions. [2024-11-22 06:04:04,034 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 455 transitions. Word has length 83 [2024-11-22 06:04:04,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:04,035 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 455 transitions. [2024-11-22 06:04:04,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 455 transitions. [2024-11-22 06:04:04,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 06:04:04,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:04,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:04,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 06:04:04,036 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:04,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:04,037 INFO L85 PathProgramCache]: Analyzing trace with hash 155342589, now seen corresponding path program 1 times [2024-11-22 06:04:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:04,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571421194] [2024-11-22 06:04:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:04,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:04,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:04,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571421194] [2024-11-22 06:04:04,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571421194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:04,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:04,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:04:04,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494432199] [2024-11-22 06:04:04,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:04,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:04:04,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:04,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:04:04,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:04,717 INFO L87 Difference]: Start difference. First operand 313 states and 455 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:05,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:05,763 INFO L93 Difference]: Finished difference Result 697 states and 1013 transitions. [2024-11-22 06:04:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:04:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-22 06:04:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:05,767 INFO L225 Difference]: With dead ends: 697 [2024-11-22 06:04:05,767 INFO L226 Difference]: Without dead ends: 430 [2024-11-22 06:04:05,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:04:05,768 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 569 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:05,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1150 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 06:04:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-22 06:04:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 317. [2024-11-22 06:04:05,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.4525316455696202) internal successors, (459), 316 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 459 transitions. [2024-11-22 06:04:05,773 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 459 transitions. Word has length 84 [2024-11-22 06:04:05,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:05,774 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 459 transitions. [2024-11-22 06:04:05,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:05,774 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 459 transitions. [2024-11-22 06:04:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 06:04:05,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:05,774 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:05,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 06:04:05,775 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:05,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1492432321, now seen corresponding path program 1 times [2024-11-22 06:04:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:05,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924723115] [2024-11-22 06:04:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:05,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:06,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:06,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924723115] [2024-11-22 06:04:06,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924723115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:06,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:06,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:06,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645195380] [2024-11-22 06:04:06,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:06,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:06,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:06,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:06,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:06,247 INFO L87 Difference]: Start difference. First operand 317 states and 459 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:06,944 INFO L93 Difference]: Finished difference Result 716 states and 1037 transitions. [2024-11-22 06:04:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-22 06:04:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:06,946 INFO L225 Difference]: With dead ends: 716 [2024-11-22 06:04:06,947 INFO L226 Difference]: Without dead ends: 445 [2024-11-22 06:04:06,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:06,948 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 514 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:06,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 933 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:04:06,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-22 06:04:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 322. [2024-11-22 06:04:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.4485981308411215) internal successors, (465), 321 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:06,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 465 transitions. [2024-11-22 06:04:06,955 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 465 transitions. Word has length 84 [2024-11-22 06:04:06,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:06,955 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 465 transitions. [2024-11-22 06:04:06,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:06,956 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 465 transitions. [2024-11-22 06:04:06,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-22 06:04:06,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:06,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:06,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 06:04:06,956 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:06,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:06,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1048327525, now seen corresponding path program 1 times [2024-11-22 06:04:06,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:06,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635057221] [2024-11-22 06:04:06,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:06,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:07,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:07,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635057221] [2024-11-22 06:04:07,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635057221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:07,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:07,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:04:07,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68904892] [2024-11-22 06:04:07,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:07,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:04:07,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:07,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:04:07,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:07,467 INFO L87 Difference]: Start difference. First operand 322 states and 465 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:08,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:08,284 INFO L93 Difference]: Finished difference Result 711 states and 1028 transitions. [2024-11-22 06:04:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:04:08,285 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-22 06:04:08,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:08,286 INFO L225 Difference]: With dead ends: 711 [2024-11-22 06:04:08,286 INFO L226 Difference]: Without dead ends: 435 [2024-11-22 06:04:08,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:04:08,287 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 540 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:08,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1386 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:04:08,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-22 06:04:08,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 326. [2024-11-22 06:04:08,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 1.4430769230769231) internal successors, (469), 325 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:08,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 469 transitions. [2024-11-22 06:04:08,292 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 469 transitions. Word has length 85 [2024-11-22 06:04:08,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:08,292 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 469 transitions. [2024-11-22 06:04:08,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:08,292 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 469 transitions. [2024-11-22 06:04:08,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-22 06:04:08,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:08,293 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:08,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 06:04:08,293 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:08,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:08,294 INFO L85 PathProgramCache]: Analyzing trace with hash 58683094, now seen corresponding path program 1 times [2024-11-22 06:04:08,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:08,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483491536] [2024-11-22 06:04:08,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:08,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:08,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:08,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483491536] [2024-11-22 06:04:08,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483491536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:08,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:08,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:04:08,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358115284] [2024-11-22 06:04:08,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:08,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:04:08,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:08,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:04:08,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:08,780 INFO L87 Difference]: Start difference. First operand 326 states and 469 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:09,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:09,701 INFO L93 Difference]: Finished difference Result 729 states and 1050 transitions. [2024-11-22 06:04:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:04:09,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-22 06:04:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:09,703 INFO L225 Difference]: With dead ends: 729 [2024-11-22 06:04:09,703 INFO L226 Difference]: Without dead ends: 449 [2024-11-22 06:04:09,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:04:09,705 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 542 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:09,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1393 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:04:09,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-22 06:04:09,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 333. [2024-11-22 06:04:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 332 states have (on average 1.4367469879518073) internal successors, (477), 332 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:09,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 477 transitions. [2024-11-22 06:04:09,710 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 477 transitions. Word has length 85 [2024-11-22 06:04:09,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:09,710 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 477 transitions. [2024-11-22 06:04:09,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:09,711 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 477 transitions. [2024-11-22 06:04:09,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-22 06:04:09,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:09,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:09,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 06:04:09,711 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:09,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash 674152439, now seen corresponding path program 1 times [2024-11-22 06:04:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:09,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980042211] [2024-11-22 06:04:09,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:09,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:10,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:10,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980042211] [2024-11-22 06:04:10,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980042211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:10,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:10,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:10,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602763465] [2024-11-22 06:04:10,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:10,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:10,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:10,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:10,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:10,055 INFO L87 Difference]: Start difference. First operand 333 states and 477 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:10,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:10,489 INFO L93 Difference]: Finished difference Result 641 states and 919 transitions. [2024-11-22 06:04:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-22 06:04:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:10,491 INFO L225 Difference]: With dead ends: 641 [2024-11-22 06:04:10,491 INFO L226 Difference]: Without dead ends: 354 [2024-11-22 06:04:10,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:10,492 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 368 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:10,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 718 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 06:04:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-22 06:04:10,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 343. [2024-11-22 06:04:10,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 342 states have (on average 1.4298245614035088) internal successors, (489), 342 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:10,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 489 transitions. [2024-11-22 06:04:10,497 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 489 transitions. Word has length 85 [2024-11-22 06:04:10,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:10,497 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 489 transitions. [2024-11-22 06:04:10,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:10,497 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 489 transitions. [2024-11-22 06:04:10,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 06:04:10,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:10,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:10,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 06:04:10,498 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:10,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:10,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1490432804, now seen corresponding path program 1 times [2024-11-22 06:04:10,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:10,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547708236] [2024-11-22 06:04:10,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:10,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:10,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:10,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547708236] [2024-11-22 06:04:10,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547708236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:10,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:10,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:04:10,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056038770] [2024-11-22 06:04:10,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:10,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:04:10,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:10,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:04:10,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:04:10,950 INFO L87 Difference]: Start difference. First operand 343 states and 489 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:11,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:11,483 INFO L93 Difference]: Finished difference Result 653 states and 933 transitions. [2024-11-22 06:04:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:04:11,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-22 06:04:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:11,485 INFO L225 Difference]: With dead ends: 653 [2024-11-22 06:04:11,485 INFO L226 Difference]: Without dead ends: 356 [2024-11-22 06:04:11,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:11,486 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 398 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:11,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 888 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 06:04:11,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-22 06:04:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 335. [2024-11-22 06:04:11,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.4341317365269461) internal successors, (479), 334 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:11,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 479 transitions. [2024-11-22 06:04:11,491 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 479 transitions. Word has length 86 [2024-11-22 06:04:11,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:11,491 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 479 transitions. [2024-11-22 06:04:11,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:11,492 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 479 transitions. [2024-11-22 06:04:11,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 06:04:11,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:11,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:11,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 06:04:11,493 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:11,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:11,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1058146460, now seen corresponding path program 1 times [2024-11-22 06:04:11,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:11,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11439849] [2024-11-22 06:04:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:11,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:11,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:11,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:11,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11439849] [2024-11-22 06:04:11,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11439849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:11,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:11,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:11,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615251494] [2024-11-22 06:04:11,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:11,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:11,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:11,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:11,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:11,924 INFO L87 Difference]: Start difference. First operand 335 states and 479 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:12,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:12,382 INFO L93 Difference]: Finished difference Result 645 states and 922 transitions. [2024-11-22 06:04:12,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:12,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-22 06:04:12,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:12,384 INFO L225 Difference]: With dead ends: 645 [2024-11-22 06:04:12,384 INFO L226 Difference]: Without dead ends: 356 [2024-11-22 06:04:12,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:12,385 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 371 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:12,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 717 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 06:04:12,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-22 06:04:12,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 349. [2024-11-22 06:04:12,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.4252873563218391) internal successors, (496), 348 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:12,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 496 transitions. [2024-11-22 06:04:12,396 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 496 transitions. Word has length 86 [2024-11-22 06:04:12,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:12,396 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 496 transitions. [2024-11-22 06:04:12,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:12,396 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 496 transitions. [2024-11-22 06:04:12,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-22 06:04:12,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:12,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:12,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 06:04:12,397 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:12,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash 559187743, now seen corresponding path program 1 times [2024-11-22 06:04:12,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:12,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503797870] [2024-11-22 06:04:12,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:12,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:12,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:12,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:12,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503797870] [2024-11-22 06:04:12,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503797870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:12,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:12,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:12,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889118461] [2024-11-22 06:04:12,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:12,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:12,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:12,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:12,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:12,883 INFO L87 Difference]: Start difference. First operand 349 states and 496 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:13,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:13,346 INFO L93 Difference]: Finished difference Result 667 states and 949 transitions. [2024-11-22 06:04:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:04:13,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-22 06:04:13,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:13,348 INFO L225 Difference]: With dead ends: 667 [2024-11-22 06:04:13,348 INFO L226 Difference]: Without dead ends: 364 [2024-11-22 06:04:13,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:13,350 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 21 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:13,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1212 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 06:04:13,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-22 06:04:13,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 343. [2024-11-22 06:04:13,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 342 states have (on average 1.4298245614035088) internal successors, (489), 342 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:13,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 489 transitions. [2024-11-22 06:04:13,357 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 489 transitions. Word has length 87 [2024-11-22 06:04:13,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:13,357 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 489 transitions. [2024-11-22 06:04:13,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:13,357 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 489 transitions. [2024-11-22 06:04:13,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-22 06:04:13,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:13,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:13,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 06:04:13,358 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:13,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:13,359 INFO L85 PathProgramCache]: Analyzing trace with hash -943533890, now seen corresponding path program 1 times [2024-11-22 06:04:13,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:13,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070709721] [2024-11-22 06:04:13,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:13,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:13,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:13,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070709721] [2024-11-22 06:04:13,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070709721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:13,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:13,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:13,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286516670] [2024-11-22 06:04:13,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:13,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:13,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:13,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:13,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:13,819 INFO L87 Difference]: Start difference. First operand 343 states and 489 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:14,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:14,263 INFO L93 Difference]: Finished difference Result 661 states and 941 transitions. [2024-11-22 06:04:14,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:14,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-22 06:04:14,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:14,265 INFO L225 Difference]: With dead ends: 661 [2024-11-22 06:04:14,265 INFO L226 Difference]: Without dead ends: 364 [2024-11-22 06:04:14,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:14,266 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 372 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:14,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 715 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 06:04:14,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-22 06:04:14,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 361. [2024-11-22 06:04:14,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.4194444444444445) internal successors, (511), 360 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 511 transitions. [2024-11-22 06:04:14,272 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 511 transitions. Word has length 87 [2024-11-22 06:04:14,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:14,272 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 511 transitions. [2024-11-22 06:04:14,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:14,272 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 511 transitions. [2024-11-22 06:04:14,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 06:04:14,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:14,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:14,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 06:04:14,273 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:14,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1949186147, now seen corresponding path program 1 times [2024-11-22 06:04:14,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:14,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209950619] [2024-11-22 06:04:14,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:14,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:14,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209950619] [2024-11-22 06:04:14,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209950619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:14,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:14,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:04:14,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809903169] [2024-11-22 06:04:14,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:14,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:04:14,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:14,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:04:14,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:14,819 INFO L87 Difference]: Start difference. First operand 361 states and 511 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:15,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:15,502 INFO L93 Difference]: Finished difference Result 785 states and 1113 transitions. [2024-11-22 06:04:15,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:04:15,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-11-22 06:04:15,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:15,506 INFO L225 Difference]: With dead ends: 785 [2024-11-22 06:04:15,506 INFO L226 Difference]: Without dead ends: 470 [2024-11-22 06:04:15,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:04:15,506 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 545 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:15,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1146 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 06:04:15,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-22 06:04:15,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 365. [2024-11-22 06:04:15,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.414835164835165) internal successors, (515), 364 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:15,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 515 transitions. [2024-11-22 06:04:15,512 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 515 transitions. Word has length 88 [2024-11-22 06:04:15,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:15,513 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 515 transitions. [2024-11-22 06:04:15,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 515 transitions. [2024-11-22 06:04:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 06:04:15,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:15,513 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:15,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 06:04:15,514 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:15,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:15,514 INFO L85 PathProgramCache]: Analyzing trace with hash -344330263, now seen corresponding path program 1 times [2024-11-22 06:04:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:15,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558489596] [2024-11-22 06:04:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:15,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:16,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:16,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558489596] [2024-11-22 06:04:16,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558489596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:16,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:16,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:04:16,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594677541] [2024-11-22 06:04:16,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:16,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:04:16,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:16,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:04:16,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:04:16,183 INFO L87 Difference]: Start difference. First operand 365 states and 515 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:16,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:16,995 INFO L93 Difference]: Finished difference Result 810 states and 1144 transitions. [2024-11-22 06:04:16,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:04:16,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-11-22 06:04:16,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:16,997 INFO L225 Difference]: With dead ends: 810 [2024-11-22 06:04:16,997 INFO L226 Difference]: Without dead ends: 491 [2024-11-22 06:04:16,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:04:17,001 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 538 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:17,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 1154 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:04:17,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-22 06:04:17,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 373. [2024-11-22 06:04:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.4086021505376345) internal successors, (524), 372 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 524 transitions. [2024-11-22 06:04:17,008 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 524 transitions. Word has length 88 [2024-11-22 06:04:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:17,009 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 524 transitions. [2024-11-22 06:04:17,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 524 transitions. [2024-11-22 06:04:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 06:04:17,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:17,013 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:17,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 06:04:17,013 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:17,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:17,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1154319847, now seen corresponding path program 1 times [2024-11-22 06:04:17,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:17,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327078129] [2024-11-22 06:04:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:17,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:17,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:17,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327078129] [2024-11-22 06:04:17,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327078129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:17,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:17,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:04:17,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583233613] [2024-11-22 06:04:17,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:17,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:04:17,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:17,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:04:17,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:04:17,620 INFO L87 Difference]: Start difference. First operand 373 states and 524 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:18,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:18,364 INFO L93 Difference]: Finished difference Result 707 states and 994 transitions. [2024-11-22 06:04:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:04:18,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-11-22 06:04:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:18,365 INFO L225 Difference]: With dead ends: 707 [2024-11-22 06:04:18,365 INFO L226 Difference]: Without dead ends: 380 [2024-11-22 06:04:18,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:18,366 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 394 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:18,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 884 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:04:18,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-22 06:04:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 359. [2024-11-22 06:04:18,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.4162011173184357) internal successors, (507), 358 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 507 transitions. [2024-11-22 06:04:18,377 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 507 transitions. Word has length 88 [2024-11-22 06:04:18,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:18,377 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 507 transitions. [2024-11-22 06:04:18,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:18,377 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 507 transitions. [2024-11-22 06:04:18,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 06:04:18,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:18,378 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:18,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 06:04:18,378 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:18,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:18,378 INFO L85 PathProgramCache]: Analyzing trace with hash -2103254133, now seen corresponding path program 1 times [2024-11-22 06:04:18,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:18,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192184025] [2024-11-22 06:04:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:18,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:18,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:18,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192184025] [2024-11-22 06:04:18,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192184025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:18,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:18,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:18,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292466338] [2024-11-22 06:04:18,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:18,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:18,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:18,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:18,826 INFO L87 Difference]: Start difference. First operand 359 states and 507 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:19,349 INFO L93 Difference]: Finished difference Result 696 states and 981 transitions. [2024-11-22 06:04:19,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:19,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-11-22 06:04:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:19,351 INFO L225 Difference]: With dead ends: 696 [2024-11-22 06:04:19,351 INFO L226 Difference]: Without dead ends: 383 [2024-11-22 06:04:19,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:19,353 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 374 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:19,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 713 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 06:04:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-22 06:04:19,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2024-11-22 06:04:19,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4052631578947368) internal successors, (534), 380 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 534 transitions. [2024-11-22 06:04:19,358 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 534 transitions. Word has length 88 [2024-11-22 06:04:19,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:19,358 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 534 transitions. [2024-11-22 06:04:19,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 534 transitions. [2024-11-22 06:04:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-22 06:04:19,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:19,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:19,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 06:04:19,359 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:19,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:19,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1494297726, now seen corresponding path program 1 times [2024-11-22 06:04:19,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:19,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884504806] [2024-11-22 06:04:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:19,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:19,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:19,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884504806] [2024-11-22 06:04:19,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884504806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:19,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:19,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:19,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385082918] [2024-11-22 06:04:19,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:19,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:19,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:19,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:19,952 INFO L87 Difference]: Start difference. First operand 381 states and 534 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:20,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:20,511 INFO L93 Difference]: Finished difference Result 770 states and 1075 transitions. [2024-11-22 06:04:20,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:20,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-11-22 06:04:20,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:20,513 INFO L225 Difference]: With dead ends: 770 [2024-11-22 06:04:20,513 INFO L226 Difference]: Without dead ends: 435 [2024-11-22 06:04:20,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:20,514 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 371 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:20,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 713 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 06:04:20,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-22 06:04:20,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 397. [2024-11-22 06:04:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.4065656565656566) internal successors, (557), 396 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 557 transitions. [2024-11-22 06:04:20,521 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 557 transitions. Word has length 89 [2024-11-22 06:04:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:20,521 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 557 transitions. [2024-11-22 06:04:20,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 557 transitions. [2024-11-22 06:04:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-22 06:04:20,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:20,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:20,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 06:04:20,523 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:20,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash -463996667, now seen corresponding path program 1 times [2024-11-22 06:04:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:20,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943062681] [2024-11-22 06:04:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:24,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:24,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943062681] [2024-11-22 06:04:24,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943062681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:24,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:24,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-22 06:04:24,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354053676] [2024-11-22 06:04:24,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:24,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 06:04:24,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:24,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 06:04:24,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-22 06:04:24,361 INFO L87 Difference]: Start difference. First operand 397 states and 557 transitions. Second operand has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 19 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:27,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:27,405 INFO L93 Difference]: Finished difference Result 1066 states and 1484 transitions. [2024-11-22 06:04:27,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 06:04:27,406 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 19 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-11-22 06:04:27,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:27,408 INFO L225 Difference]: With dead ends: 1066 [2024-11-22 06:04:27,409 INFO L226 Difference]: Without dead ends: 715 [2024-11-22 06:04:27,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 06:04:27,410 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1244 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 4313 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 4316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:27,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 2826 Invalid, 4316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4313 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-22 06:04:27,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-22 06:04:27,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 432. [2024-11-22 06:04:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 431 states have (on average 1.3990719257540603) internal successors, (603), 431 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 603 transitions. [2024-11-22 06:04:27,418 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 603 transitions. Word has length 89 [2024-11-22 06:04:27,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:27,419 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 603 transitions. [2024-11-22 06:04:27,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 19 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 603 transitions. [2024-11-22 06:04:27,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 06:04:27,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:27,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:27,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 06:04:27,420 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:27,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:27,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1144624026, now seen corresponding path program 1 times [2024-11-22 06:04:27,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:27,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101813258] [2024-11-22 06:04:27,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:27,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101813258] [2024-11-22 06:04:27,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101813258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:27,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:27,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:04:27,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312725670] [2024-11-22 06:04:27,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:27,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:04:27,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:04:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:27,971 INFO L87 Difference]: Start difference. First operand 432 states and 603 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:28,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:28,690 INFO L93 Difference]: Finished difference Result 923 states and 1291 transitions. [2024-11-22 06:04:28,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:04:28,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-22 06:04:28,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:28,692 INFO L225 Difference]: With dead ends: 923 [2024-11-22 06:04:28,692 INFO L226 Difference]: Without dead ends: 537 [2024-11-22 06:04:28,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:04:28,694 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 531 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:28,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1146 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:04:28,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-22 06:04:28,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 436. [2024-11-22 06:04:28,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.3954022988505748) internal successors, (607), 435 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 607 transitions. [2024-11-22 06:04:28,701 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 607 transitions. Word has length 90 [2024-11-22 06:04:28,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:28,701 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 607 transitions. [2024-11-22 06:04:28,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 607 transitions. [2024-11-22 06:04:28,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 06:04:28,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:28,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:28,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 06:04:28,703 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:28,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:28,703 INFO L85 PathProgramCache]: Analyzing trace with hash -112633779, now seen corresponding path program 1 times [2024-11-22 06:04:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922710667] [2024-11-22 06:04:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:28,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:29,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:29,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:29,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922710667] [2024-11-22 06:04:29,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922710667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:29,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:29,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:04:29,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957812804] [2024-11-22 06:04:29,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:29,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:04:29,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:29,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:04:29,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:04:29,188 INFO L87 Difference]: Start difference. First operand 436 states and 607 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:30,099 INFO L93 Difference]: Finished difference Result 948 states and 1322 transitions. [2024-11-22 06:04:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:04:30,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-22 06:04:30,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:30,101 INFO L225 Difference]: With dead ends: 948 [2024-11-22 06:04:30,101 INFO L226 Difference]: Without dead ends: 558 [2024-11-22 06:04:30,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:04:30,102 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 533 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:30,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1154 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:04:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-22 06:04:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 446. [2024-11-22 06:04:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.3887640449438203) internal successors, (618), 445 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:30,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 618 transitions. [2024-11-22 06:04:30,108 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 618 transitions. Word has length 90 [2024-11-22 06:04:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:30,108 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 618 transitions. [2024-11-22 06:04:30,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 618 transitions. [2024-11-22 06:04:30,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 06:04:30,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:30,109 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:30,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 06:04:30,111 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:30,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:30,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1233782766, now seen corresponding path program 1 times [2024-11-22 06:04:30,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:30,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471377749] [2024-11-22 06:04:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:30,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:30,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:30,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:30,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471377749] [2024-11-22 06:04:30,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471377749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:30,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:30,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:04:30,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292677364] [2024-11-22 06:04:30,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:30,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:04:30,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:30,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:04:30,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:30,919 INFO L87 Difference]: Start difference. First operand 446 states and 618 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:32,006 INFO L93 Difference]: Finished difference Result 830 states and 1149 transitions. [2024-11-22 06:04:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:04:32,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-22 06:04:32,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:32,008 INFO L225 Difference]: With dead ends: 830 [2024-11-22 06:04:32,009 INFO L226 Difference]: Without dead ends: 430 [2024-11-22 06:04:32,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:04:32,010 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 379 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:32,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1069 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 06:04:32,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-22 06:04:32,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2024-11-22 06:04:32,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 429 states have (on average 1.3822843822843822) internal successors, (593), 429 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 593 transitions. [2024-11-22 06:04:32,017 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 593 transitions. Word has length 90 [2024-11-22 06:04:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:32,017 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 593 transitions. [2024-11-22 06:04:32,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:32,017 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 593 transitions. [2024-11-22 06:04:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 06:04:32,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:32,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:32,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 06:04:32,018 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:32,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:32,019 INFO L85 PathProgramCache]: Analyzing trace with hash -411987638, now seen corresponding path program 1 times [2024-11-22 06:04:32,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:32,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539909658] [2024-11-22 06:04:32,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:32,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:32,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:32,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539909658] [2024-11-22 06:04:32,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539909658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:32,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:32,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:32,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896228825] [2024-11-22 06:04:32,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:32,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:32,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:32,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:32,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:32,479 INFO L87 Difference]: Start difference. First operand 430 states and 593 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:32,987 INFO L93 Difference]: Finished difference Result 870 states and 1194 transitions. [2024-11-22 06:04:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:32,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-22 06:04:32,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:32,989 INFO L225 Difference]: With dead ends: 870 [2024-11-22 06:04:32,989 INFO L226 Difference]: Without dead ends: 486 [2024-11-22 06:04:32,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:32,991 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 362 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:32,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 713 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 06:04:32,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-22 06:04:32,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 440. [2024-11-22 06:04:32,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 439 states have (on average 1.3826879271070616) internal successors, (607), 439 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 607 transitions. [2024-11-22 06:04:32,999 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 607 transitions. Word has length 90 [2024-11-22 06:04:32,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:32,999 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 607 transitions. [2024-11-22 06:04:32,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 607 transitions. [2024-11-22 06:04:33,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 06:04:33,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:33,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:33,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 06:04:33,001 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:33,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1883983552, now seen corresponding path program 1 times [2024-11-22 06:04:33,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:33,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761197392] [2024-11-22 06:04:33,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:33,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:33,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:33,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761197392] [2024-11-22 06:04:33,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761197392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:33,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:33,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:33,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952410937] [2024-11-22 06:04:33,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:33,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:33,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:33,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:33,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:33,759 INFO L87 Difference]: Start difference. First operand 440 states and 607 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:34,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:34,366 INFO L93 Difference]: Finished difference Result 942 states and 1302 transitions. [2024-11-22 06:04:34,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:34,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-22 06:04:34,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:34,368 INFO L225 Difference]: With dead ends: 942 [2024-11-22 06:04:34,368 INFO L226 Difference]: Without dead ends: 548 [2024-11-22 06:04:34,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:04:34,369 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 509 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:34,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 884 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 06:04:34,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-22 06:04:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 467. [2024-11-22 06:04:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 466 states have (on average 1.3798283261802575) internal successors, (643), 466 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:34,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 643 transitions. [2024-11-22 06:04:34,388 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 643 transitions. Word has length 90 [2024-11-22 06:04:34,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:34,388 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 643 transitions. [2024-11-22 06:04:34,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:34,388 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 643 transitions. [2024-11-22 06:04:34,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 06:04:34,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:34,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:34,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 06:04:34,389 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:34,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 921450183, now seen corresponding path program 1 times [2024-11-22 06:04:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:34,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079877100] [2024-11-22 06:04:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:34,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:34,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:34,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079877100] [2024-11-22 06:04:34,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079877100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:34,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:34,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:04:34,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335224581] [2024-11-22 06:04:34,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:34,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:04:34,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:34,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:04:34,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:04:34,983 INFO L87 Difference]: Start difference. First operand 467 states and 643 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:35,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:35,380 INFO L93 Difference]: Finished difference Result 896 states and 1233 transitions. [2024-11-22 06:04:35,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:04:35,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-22 06:04:35,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:35,382 INFO L225 Difference]: With dead ends: 896 [2024-11-22 06:04:35,382 INFO L226 Difference]: Without dead ends: 475 [2024-11-22 06:04:35,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:04:35,383 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 11 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:35,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1030 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 06:04:35,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-22 06:04:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 457. [2024-11-22 06:04:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.3837719298245614) internal successors, (631), 456 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 631 transitions. [2024-11-22 06:04:35,390 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 631 transitions. Word has length 91 [2024-11-22 06:04:35,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:35,390 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 631 transitions. [2024-11-22 06:04:35,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 631 transitions. [2024-11-22 06:04:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 06:04:35,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:35,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:35,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 06:04:35,392 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:35,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash 425657126, now seen corresponding path program 1 times [2024-11-22 06:04:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:35,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303202919] [2024-11-22 06:04:35,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:35,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:39,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:39,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:39,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303202919] [2024-11-22 06:04:39,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303202919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:39,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:39,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 06:04:39,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477690597] [2024-11-22 06:04:39,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:39,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 06:04:39,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:39,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 06:04:39,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-22 06:04:39,448 INFO L87 Difference]: Start difference. First operand 457 states and 631 transitions. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:41,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:41,960 INFO L93 Difference]: Finished difference Result 1057 states and 1454 transitions. [2024-11-22 06:04:41,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 06:04:41,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-22 06:04:41,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:41,962 INFO L225 Difference]: With dead ends: 1057 [2024-11-22 06:04:41,962 INFO L226 Difference]: Without dead ends: 646 [2024-11-22 06:04:41,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=631, Unknown=0, NotChecked=0, Total=756 [2024-11-22 06:04:41,963 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 891 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 2980 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:41,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 2023 Invalid, 2983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2980 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-22 06:04:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-22 06:04:41,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 441. [2024-11-22 06:04:41,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.3795454545454546) internal successors, (607), 440 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 607 transitions. [2024-11-22 06:04:41,980 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 607 transitions. Word has length 91 [2024-11-22 06:04:41,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:41,981 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 607 transitions. [2024-11-22 06:04:41,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:41,981 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 607 transitions. [2024-11-22 06:04:41,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 06:04:41,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:41,981 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:41,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 06:04:41,982 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:41,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:41,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1187443383, now seen corresponding path program 1 times [2024-11-22 06:04:41,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:41,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398822836] [2024-11-22 06:04:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:41,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:42,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:42,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398822836] [2024-11-22 06:04:42,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398822836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:42,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:42,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:04:42,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124388231] [2024-11-22 06:04:42,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:42,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:04:42,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:42,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:04:42,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:04:42,868 INFO L87 Difference]: Start difference. First operand 441 states and 607 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:43,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:43,458 INFO L93 Difference]: Finished difference Result 836 states and 1150 transitions. [2024-11-22 06:04:43,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:04:43,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-22 06:04:43,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:43,460 INFO L225 Difference]: With dead ends: 836 [2024-11-22 06:04:43,460 INFO L226 Difference]: Without dead ends: 441 [2024-11-22 06:04:43,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:04:43,461 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 380 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:43,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 709 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 06:04:43,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-22 06:04:43,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-22 06:04:43,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.375) internal successors, (605), 440 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:43,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 605 transitions. [2024-11-22 06:04:43,468 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 605 transitions. Word has length 92 [2024-11-22 06:04:43,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:43,469 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 605 transitions. [2024-11-22 06:04:43,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:43,469 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 605 transitions. [2024-11-22 06:04:43,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 06:04:43,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:43,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:43,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-22 06:04:43,470 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:43,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:43,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1954698773, now seen corresponding path program 1 times [2024-11-22 06:04:43,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:43,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480653510] [2024-11-22 06:04:43,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:43,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:04:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:04:44,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:04:44,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480653510] [2024-11-22 06:04:44,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480653510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:04:44,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:04:44,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 06:04:44,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273722172] [2024-11-22 06:04:44,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:04:44,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 06:04:44,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:04:44,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 06:04:44,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:04:44,396 INFO L87 Difference]: Start difference. First operand 441 states and 605 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:45,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:04:45,346 INFO L93 Difference]: Finished difference Result 937 states and 1288 transitions. [2024-11-22 06:04:45,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:04:45,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-22 06:04:45,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:04:45,348 INFO L225 Difference]: With dead ends: 937 [2024-11-22 06:04:45,348 INFO L226 Difference]: Without dead ends: 542 [2024-11-22 06:04:45,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-22 06:04:45,349 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 525 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 1770 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 06:04:45,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1602 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1770 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 06:04:45,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-22 06:04:45,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 449. [2024-11-22 06:04:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.3683035714285714) internal successors, (613), 448 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 613 transitions. [2024-11-22 06:04:45,355 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 613 transitions. Word has length 93 [2024-11-22 06:04:45,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:04:45,355 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 613 transitions. [2024-11-22 06:04:45,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:04:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 613 transitions. [2024-11-22 06:04:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 06:04:45,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:04:45,356 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:04:45,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-22 06:04:45,356 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:04:45,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:04:45,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2082921821, now seen corresponding path program 1 times [2024-11-22 06:04:45,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:04:45,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948419273] [2024-11-22 06:04:45,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:04:45,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:04:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat