./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7078db7101404701d1361cc736476696e00d8cbe0085be82e13ec1c6956c8c2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:44:10,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:44:10,484 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:44:10,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:44:10,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:44:10,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:44:10,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:44:10,525 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:44:10,525 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:44:10,526 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:44:10,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:44:10,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:44:10,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:44:10,527 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:44:10,529 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:44:10,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:44:10,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:44:10,530 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:44:10,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:44:10,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:44:10,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:44:10,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:44:10,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:44:10,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:44:10,536 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:44:10,536 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:44:10,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:44:10,537 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:44:10,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:44:10,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:44:10,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:44:10,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:44:10,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:44:10,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:44:10,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:44:10,539 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:44:10,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:44:10,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:44:10,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:44:10,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:44:10,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:44:10,541 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:44:10,541 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7078db7101404701d1361cc736476696e00d8cbe0085be82e13ec1c6956c8c2 [2024-11-18 14:44:10,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:44:10,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:44:10,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:44:10,803 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:44:10,804 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:44:10,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2024-11-18 14:44:12,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:44:12,541 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:44:12,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2024-11-18 14:44:12,557 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d09d29f9/9af6a06649934b4d930523315e55388e/FLAGac227f9ff [2024-11-18 14:44:12,910 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d09d29f9/9af6a06649934b4d930523315e55388e [2024-11-18 14:44:12,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:44:12,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:44:12,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:44:12,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:44:12,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:44:12,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:44:12" (1/1) ... [2024-11-18 14:44:12,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfc6bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:12, skipping insertion in model container [2024-11-18 14:44:12,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:44:12" (1/1) ... [2024-11-18 14:44:12,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:44:13,252 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c[15140,15153] [2024-11-18 14:44:13,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:44:13,270 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:44:13,361 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c[15140,15153] [2024-11-18 14:44:13,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:44:13,386 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:44:13,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13 WrapperNode [2024-11-18 14:44:13,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:44:13,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:44:13,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:44:13,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:44:13,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,447 INFO L138 Inliner]: procedures = 26, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 397 [2024-11-18 14:44:13,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:44:13,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:44:13,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:44:13,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:44:13,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,506 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 14:44:13,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:44:13,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:44:13,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:44:13,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:44:13,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (1/1) ... [2024-11-18 14:44:13,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:44:13,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:44:13,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:44:13,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:44:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:44:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:44:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:44:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:44:13,769 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:44:13,771 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:44:14,339 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-18 14:44:14,339 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:44:14,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:44:14,357 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:44:14,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:44:14 BoogieIcfgContainer [2024-11-18 14:44:14,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:44:14,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:44:14,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:44:14,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:44:14,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:44:12" (1/3) ... [2024-11-18 14:44:14,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216a0d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:44:14, skipping insertion in model container [2024-11-18 14:44:14,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:44:13" (2/3) ... [2024-11-18 14:44:14,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216a0d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:44:14, skipping insertion in model container [2024-11-18 14:44:14,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:44:14" (3/3) ... [2024-11-18 14:44:14,368 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2024-11-18 14:44:14,384 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:44:14,385 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:44:14,453 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:44:14,463 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;@5542db1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:44:14,463 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:44:14,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 98 states have (on average 1.7653061224489797) internal successors, (173), 99 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 14:44:14,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:14,479 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] [2024-11-18 14:44:14,479 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:14,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash -315338523, now seen corresponding path program 1 times [2024-11-18 14:44:14,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:14,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780805233] [2024-11-18 14:44:14,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:14,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:14,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:14,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780805233] [2024-11-18 14:44:14,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780805233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:14,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:14,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:44:14,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338160340] [2024-11-18 14:44:14,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:14,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:44:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:14,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:44:14,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:44:14,828 INFO L87 Difference]: Start difference. First operand has 100 states, 98 states have (on average 1.7653061224489797) internal successors, (173), 99 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:14,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:14,852 INFO L93 Difference]: Finished difference Result 151 states and 257 transitions. [2024-11-18 14:44:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:44:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-18 14:44:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:14,861 INFO L225 Difference]: With dead ends: 151 [2024-11-18 14:44:14,862 INFO L226 Difference]: Without dead ends: 96 [2024-11-18 14:44:14,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:44:14,867 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:14,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-18 14:44:14,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-18 14:44:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.7473684210526317) internal successors, (166), 95 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:14,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 166 transitions. [2024-11-18 14:44:14,931 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 166 transitions. Word has length 25 [2024-11-18 14:44:14,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:14,932 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 166 transitions. [2024-11-18 14:44:14,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:14,932 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 166 transitions. [2024-11-18 14:44:14,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 14:44:14,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:14,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:14,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:44:14,940 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:14,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:14,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1132986973, now seen corresponding path program 1 times [2024-11-18 14:44:14,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:14,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018622121] [2024-11-18 14:44:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:14,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:15,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:15,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:15,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018622121] [2024-11-18 14:44:15,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018622121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:15,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:15,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:44:15,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129950569] [2024-11-18 14:44:15,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:15,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:44:15,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:15,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:44:15,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:44:15,243 INFO L87 Difference]: Start difference. First operand 96 states and 166 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:15,354 INFO L93 Difference]: Finished difference Result 150 states and 250 transitions. [2024-11-18 14:44:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:44:15,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-18 14:44:15,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:15,356 INFO L225 Difference]: With dead ends: 150 [2024-11-18 14:44:15,356 INFO L226 Difference]: Without dead ends: 96 [2024-11-18 14:44:15,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:44:15,358 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:15,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:44:15,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-18 14:44:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-18 14:44:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 126 transitions. [2024-11-18 14:44:15,368 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 126 transitions. Word has length 25 [2024-11-18 14:44:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:15,368 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 126 transitions. [2024-11-18 14:44:15,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 126 transitions. [2024-11-18 14:44:15,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-18 14:44:15,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:15,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:15,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:44:15,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:15,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:15,374 INFO L85 PathProgramCache]: Analyzing trace with hash 358389460, now seen corresponding path program 1 times [2024-11-18 14:44:15,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:15,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879837903] [2024-11-18 14:44:15,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:15,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:15,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:15,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879837903] [2024-11-18 14:44:15,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879837903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:15,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:15,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:44:15,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253772080] [2024-11-18 14:44:15,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:15,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:44:15,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:15,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:44:15,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:44:15,743 INFO L87 Difference]: Start difference. First operand 96 states and 126 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:16,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:16,160 INFO L93 Difference]: Finished difference Result 696 states and 1086 transitions. [2024-11-18 14:44:16,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 14:44:16,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-18 14:44:16,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:16,170 INFO L225 Difference]: With dead ends: 696 [2024-11-18 14:44:16,173 INFO L226 Difference]: Without dead ends: 646 [2024-11-18 14:44:16,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:44:16,176 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 1161 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:16,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1903 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:44:16,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-18 14:44:16,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 144. [2024-11-18 14:44:16,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4195804195804196) internal successors, (203), 143 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2024-11-18 14:44:16,218 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 64 [2024-11-18 14:44:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:16,218 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2024-11-18 14:44:16,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2024-11-18 14:44:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 14:44:16,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:16,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:16,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:44:16,221 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:16,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:16,227 INFO L85 PathProgramCache]: Analyzing trace with hash -534313204, now seen corresponding path program 1 times [2024-11-18 14:44:16,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:16,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457767207] [2024-11-18 14:44:16,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:16,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:16,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:16,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457767207] [2024-11-18 14:44:16,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457767207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:16,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:16,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:44:16,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183986607] [2024-11-18 14:44:16,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:16,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:44:16,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:16,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:44:16,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:44:16,743 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:17,024 INFO L93 Difference]: Finished difference Result 244 states and 361 transitions. [2024-11-18 14:44:17,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:44:17,025 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-18 14:44:17,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:17,026 INFO L225 Difference]: With dead ends: 244 [2024-11-18 14:44:17,026 INFO L226 Difference]: Without dead ends: 146 [2024-11-18 14:44:17,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:44:17,028 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 376 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:17,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 501 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:44:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-18 14:44:17,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2024-11-18 14:44:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4125874125874125) internal successors, (202), 143 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 202 transitions. [2024-11-18 14:44:17,036 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 202 transitions. Word has length 66 [2024-11-18 14:44:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:17,036 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 202 transitions. [2024-11-18 14:44:17,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 202 transitions. [2024-11-18 14:44:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 14:44:17,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:17,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:17,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:44:17,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:17,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:17,040 INFO L85 PathProgramCache]: Analyzing trace with hash -600806716, now seen corresponding path program 1 times [2024-11-18 14:44:17,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:17,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896472056] [2024-11-18 14:44:17,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:17,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:17,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896472056] [2024-11-18 14:44:17,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896472056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:17,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:17,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:17,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678823717] [2024-11-18 14:44:17,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:17,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:17,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:17,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:17,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,143 INFO L87 Difference]: Start difference. First operand 144 states and 202 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:17,170 INFO L93 Difference]: Finished difference Result 329 states and 495 transitions. [2024-11-18 14:44:17,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:17,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-18 14:44:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:17,172 INFO L225 Difference]: With dead ends: 329 [2024-11-18 14:44:17,173 INFO L226 Difference]: Without dead ends: 231 [2024-11-18 14:44:17,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,174 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 53 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:17,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 195 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-18 14:44:17,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 227. [2024-11-18 14:44:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4646017699115044) internal successors, (331), 226 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 331 transitions. [2024-11-18 14:44:17,184 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 331 transitions. Word has length 66 [2024-11-18 14:44:17,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:17,185 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 331 transitions. [2024-11-18 14:44:17,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 331 transitions. [2024-11-18 14:44:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 14:44:17,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:17,187 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:17,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:44:17,188 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:17,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:17,191 INFO L85 PathProgramCache]: Analyzing trace with hash 201436865, now seen corresponding path program 1 times [2024-11-18 14:44:17,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:17,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663240807] [2024-11-18 14:44:17,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:17,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:17,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:17,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663240807] [2024-11-18 14:44:17,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663240807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:17,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:17,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:44:17,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031326134] [2024-11-18 14:44:17,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:17,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:44:17,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:17,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:44:17,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:44:17,426 INFO L87 Difference]: Start difference. First operand 227 states and 331 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:17,447 INFO L93 Difference]: Finished difference Result 235 states and 340 transitions. [2024-11-18 14:44:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:44:17,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-18 14:44:17,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:17,449 INFO L225 Difference]: With dead ends: 235 [2024-11-18 14:44:17,449 INFO L226 Difference]: Without dead ends: 233 [2024-11-18 14:44:17,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:44:17,450 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 483 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 [2024-11-18 14:44:17,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 483 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:17,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-18 14:44:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-11-18 14:44:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.4482758620689655) internal successors, (336), 232 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 336 transitions. [2024-11-18 14:44:17,458 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 336 transitions. Word has length 67 [2024-11-18 14:44:17,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:17,459 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 336 transitions. [2024-11-18 14:44:17,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,459 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 336 transitions. [2024-11-18 14:44:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 14:44:17,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:17,461 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:17,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:44:17,461 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:17,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:17,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1971945076, now seen corresponding path program 1 times [2024-11-18 14:44:17,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:17,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834888262] [2024-11-18 14:44:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:17,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:17,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:17,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:17,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834888262] [2024-11-18 14:44:17,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834888262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:17,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:17,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:17,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220014991] [2024-11-18 14:44:17,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:17,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:17,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:17,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:17,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,547 INFO L87 Difference]: Start difference. First operand 233 states and 336 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:17,568 INFO L93 Difference]: Finished difference Result 591 states and 888 transitions. [2024-11-18 14:44:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:17,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 14:44:17,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:17,572 INFO L225 Difference]: With dead ends: 591 [2024-11-18 14:44:17,572 INFO L226 Difference]: Without dead ends: 404 [2024-11-18 14:44:17,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,575 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 68 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:17,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 268 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-18 14:44:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 402. [2024-11-18 14:44:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 1.4788029925187032) internal successors, (593), 401 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) [2024-11-18 14:44:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 593 transitions. [2024-11-18 14:44:17,591 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 593 transitions. Word has length 68 [2024-11-18 14:44:17,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:17,592 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 593 transitions. [2024-11-18 14:44:17,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 593 transitions. [2024-11-18 14:44:17,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 14:44:17,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:17,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:17,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:44:17,598 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:17,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:17,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1708088692, now seen corresponding path program 1 times [2024-11-18 14:44:17,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:17,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818879630] [2024-11-18 14:44:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:17,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:17,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818879630] [2024-11-18 14:44:17,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818879630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:17,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:17,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:17,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381571448] [2024-11-18 14:44:17,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:17,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:17,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:17,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:17,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,672 INFO L87 Difference]: Start difference. First operand 402 states and 593 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:17,695 INFO L93 Difference]: Finished difference Result 1082 states and 1631 transitions. [2024-11-18 14:44:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:17,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 14:44:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:17,699 INFO L225 Difference]: With dead ends: 1082 [2024-11-18 14:44:17,699 INFO L226 Difference]: Without dead ends: 726 [2024-11-18 14:44:17,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,701 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 66 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:17,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 270 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:17,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-18 14:44:17,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 724. [2024-11-18 14:44:17,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 723 states have (on average 1.4868603042876902) internal successors, (1075), 723 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1075 transitions. [2024-11-18 14:44:17,721 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1075 transitions. Word has length 68 [2024-11-18 14:44:17,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:17,721 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1075 transitions. [2024-11-18 14:44:17,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,721 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1075 transitions. [2024-11-18 14:44:17,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 14:44:17,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:17,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:17,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:44:17,723 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:17,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:17,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1609671820, now seen corresponding path program 1 times [2024-11-18 14:44:17,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:17,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326190358] [2024-11-18 14:44:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:17,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:17,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:17,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326190358] [2024-11-18 14:44:17,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326190358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:17,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:17,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:17,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806827939] [2024-11-18 14:44:17,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:17,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:17,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:17,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:17,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,798 INFO L87 Difference]: Start difference. First operand 724 states and 1075 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:17,829 INFO L93 Difference]: Finished difference Result 2016 states and 3021 transitions. [2024-11-18 14:44:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:17,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 14:44:17,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:17,835 INFO L225 Difference]: With dead ends: 2016 [2024-11-18 14:44:17,835 INFO L226 Difference]: Without dead ends: 1338 [2024-11-18 14:44:17,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,837 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 62 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:17,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 266 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:17,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-18 14:44:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1336. [2024-11-18 14:44:17,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 1.4794007490636705) internal successors, (1975), 1335 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1975 transitions. [2024-11-18 14:44:17,873 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1975 transitions. Word has length 68 [2024-11-18 14:44:17,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:17,874 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1975 transitions. [2024-11-18 14:44:17,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1975 transitions. [2024-11-18 14:44:17,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 14:44:17,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:17,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:17,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:44:17,875 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:17,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:17,876 INFO L85 PathProgramCache]: Analyzing trace with hash -904362612, now seen corresponding path program 1 times [2024-11-18 14:44:17,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:17,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934376377] [2024-11-18 14:44:17,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:17,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:17,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:17,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:17,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934376377] [2024-11-18 14:44:17,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934376377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:17,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:17,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:17,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896651184] [2024-11-18 14:44:17,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:17,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:17,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:17,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:17,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,934 INFO L87 Difference]: Start difference. First operand 1336 states and 1975 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:17,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:17,984 INFO L93 Difference]: Finished difference Result 3788 states and 5609 transitions. [2024-11-18 14:44:17,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:17,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 14:44:17,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:17,993 INFO L225 Difference]: With dead ends: 3788 [2024-11-18 14:44:17,994 INFO L226 Difference]: Without dead ends: 2498 [2024-11-18 14:44:17,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:17,996 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:17,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 268 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2024-11-18 14:44:18,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2496. [2024-11-18 14:44:18,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.4617234468937876) internal successors, (3647), 2495 states have internal predecessors, (3647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 3647 transitions. [2024-11-18 14:44:18,057 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 3647 transitions. Word has length 68 [2024-11-18 14:44:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:18,057 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 3647 transitions. [2024-11-18 14:44:18,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 3647 transitions. [2024-11-18 14:44:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 14:44:18,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:18,058 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:18,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:44:18,058 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:18,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:18,059 INFO L85 PathProgramCache]: Analyzing trace with hash -469826676, now seen corresponding path program 1 times [2024-11-18 14:44:18,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:18,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542942505] [2024-11-18 14:44:18,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:18,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:18,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:18,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:18,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542942505] [2024-11-18 14:44:18,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542942505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:18,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:18,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:18,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259092483] [2024-11-18 14:44:18,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:18,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:18,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:18,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:18,132 INFO L87 Difference]: Start difference. First operand 2496 states and 3647 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:18,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:18,227 INFO L93 Difference]: Finished difference Result 7140 states and 10401 transitions. [2024-11-18 14:44:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:18,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 14:44:18,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:18,247 INFO L225 Difference]: With dead ends: 7140 [2024-11-18 14:44:18,248 INFO L226 Difference]: Without dead ends: 4690 [2024-11-18 14:44:18,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:18,255 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 64 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:18,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 272 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4690 states. [2024-11-18 14:44:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4690 to 4688. [2024-11-18 14:44:18,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4687 states have (on average 1.4369532750160017) internal successors, (6735), 4687 states have internal predecessors, (6735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:18,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 6735 transitions. [2024-11-18 14:44:18,398 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 6735 transitions. Word has length 68 [2024-11-18 14:44:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:18,398 INFO L471 AbstractCegarLoop]: Abstraction has 4688 states and 6735 transitions. [2024-11-18 14:44:18,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:18,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 6735 transitions. [2024-11-18 14:44:18,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 14:44:18,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:18,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:18,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:44:18,400 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:18,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash -697172697, now seen corresponding path program 1 times [2024-11-18 14:44:18,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:18,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021279222] [2024-11-18 14:44:18,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:18,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:18,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:18,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:18,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021279222] [2024-11-18 14:44:18,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021279222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:18,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:18,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:18,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117292725] [2024-11-18 14:44:18,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:18,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:18,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:18,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:18,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:18,476 INFO L87 Difference]: Start difference. First operand 4688 states and 6735 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:18,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:18,588 INFO L93 Difference]: Finished difference Result 9559 states and 13845 transitions. [2024-11-18 14:44:18,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:18,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-18 14:44:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:18,611 INFO L225 Difference]: With dead ends: 9559 [2024-11-18 14:44:18,612 INFO L226 Difference]: Without dead ends: 6932 [2024-11-18 14:44:18,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:18,617 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 67 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:18,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 269 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:18,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6932 states. [2024-11-18 14:44:18,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6932 to 6930. [2024-11-18 14:44:18,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6930 states, 6929 states have (on average 1.4294992062346659) internal successors, (9905), 6929 states have internal predecessors, (9905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:18,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6930 states to 6930 states and 9905 transitions. [2024-11-18 14:44:18,856 INFO L78 Accepts]: Start accepts. Automaton has 6930 states and 9905 transitions. Word has length 70 [2024-11-18 14:44:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:18,856 INFO L471 AbstractCegarLoop]: Abstraction has 6930 states and 9905 transitions. [2024-11-18 14:44:18,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:18,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6930 states and 9905 transitions. [2024-11-18 14:44:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:44:18,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:18,860 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:18,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:44:18,860 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:18,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:18,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1093136202, now seen corresponding path program 1 times [2024-11-18 14:44:18,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246124571] [2024-11-18 14:44:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:18,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 14:44:19,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:19,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246124571] [2024-11-18 14:44:19,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246124571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:19,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:19,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:44:19,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583766621] [2024-11-18 14:44:19,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:19,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:44:19,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:19,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:44:19,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:44:19,060 INFO L87 Difference]: Start difference. First operand 6930 states and 9905 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 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) [2024-11-18 14:44:19,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:19,935 INFO L93 Difference]: Finished difference Result 49664 states and 71032 transitions. [2024-11-18 14:44:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:44:19,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 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 89 [2024-11-18 14:44:19,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:20,074 INFO L225 Difference]: With dead ends: 49664 [2024-11-18 14:44:20,074 INFO L226 Difference]: Without dead ends: 42782 [2024-11-18 14:44:20,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:44:20,101 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 920 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:20,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1084 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:44:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42782 states. [2024-11-18 14:44:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42782 to 13810. [2024-11-18 14:44:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13810 states, 13809 states have (on average 1.4240712578752988) internal successors, (19665), 13809 states have internal predecessors, (19665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13810 states to 13810 states and 19665 transitions. [2024-11-18 14:44:20,937 INFO L78 Accepts]: Start accepts. Automaton has 13810 states and 19665 transitions. Word has length 89 [2024-11-18 14:44:20,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:20,938 INFO L471 AbstractCegarLoop]: Abstraction has 13810 states and 19665 transitions. [2024-11-18 14:44:20,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 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) [2024-11-18 14:44:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 13810 states and 19665 transitions. [2024-11-18 14:44:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:44:20,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:20,941 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:20,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:44:20,942 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:20,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1356992586, now seen corresponding path program 1 times [2024-11-18 14:44:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:20,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247603190] [2024-11-18 14:44:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:20,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:21,133 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:44:21,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:21,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247603190] [2024-11-18 14:44:21,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247603190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:21,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:21,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:44:21,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422053787] [2024-11-18 14:44:21,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:21,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:44:21,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:21,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:44:21,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:44:21,139 INFO L87 Difference]: Start difference. First operand 13810 states and 19665 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) [2024-11-18 14:44:22,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:22,223 INFO L93 Difference]: Finished difference Result 56544 states and 80792 transitions. [2024-11-18 14:44:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:44:22,224 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 89 [2024-11-18 14:44:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:22,373 INFO L225 Difference]: With dead ends: 56544 [2024-11-18 14:44:22,374 INFO L226 Difference]: Without dead ends: 49662 [2024-11-18 14:44:22,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:44:22,407 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 970 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:22,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 950 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:44:22,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49662 states. [2024-11-18 14:44:23,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49662 to 24146. [2024-11-18 14:44:23,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24146 states, 24145 states have (on average 1.417477738662249) internal successors, (34225), 24145 states have internal predecessors, (34225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:23,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24146 states to 24146 states and 34225 transitions. [2024-11-18 14:44:23,460 INFO L78 Accepts]: Start accepts. Automaton has 24146 states and 34225 transitions. Word has length 89 [2024-11-18 14:44:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:23,461 INFO L471 AbstractCegarLoop]: Abstraction has 24146 states and 34225 transitions. [2024-11-18 14:44:23,461 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) [2024-11-18 14:44:23,461 INFO L276 IsEmpty]: Start isEmpty. Operand 24146 states and 34225 transitions. [2024-11-18 14:44:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:44:23,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:23,465 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:23,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:44:23,465 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:23,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash 379785802, now seen corresponding path program 1 times [2024-11-18 14:44:23,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:23,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19666311] [2024-11-18 14:44:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:23,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 14:44:23,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:23,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19666311] [2024-11-18 14:44:23,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19666311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:23,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:23,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:44:23,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759907011] [2024-11-18 14:44:23,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:23,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:44:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:44:23,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:44:23,670 INFO L87 Difference]: Start difference. First operand 24146 states and 34225 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:24,821 INFO L93 Difference]: Finished difference Result 63424 states and 90552 transitions. [2024-11-18 14:44:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:44:24,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-18 14:44:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:24,977 INFO L225 Difference]: With dead ends: 63424 [2024-11-18 14:44:24,977 INFO L226 Difference]: Without dead ends: 56542 [2024-11-18 14:44:24,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:44:24,993 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1043 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:24,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 964 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:44:25,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56542 states. [2024-11-18 14:44:25,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56542 to 31026. [2024-11-18 14:44:26,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31026 states, 31025 states have (on average 1.4177276390008058) internal successors, (43985), 31025 states have internal predecessors, (43985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:26,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31026 states to 31026 states and 43985 transitions. [2024-11-18 14:44:26,084 INFO L78 Accepts]: Start accepts. Automaton has 31026 states and 43985 transitions. Word has length 89 [2024-11-18 14:44:26,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:26,085 INFO L471 AbstractCegarLoop]: Abstraction has 31026 states and 43985 transitions. [2024-11-18 14:44:26,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:26,086 INFO L276 IsEmpty]: Start isEmpty. Operand 31026 states and 43985 transitions. [2024-11-18 14:44:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:44:26,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:26,090 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:26,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:44:26,091 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:26,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2134248630, now seen corresponding path program 1 times [2024-11-18 14:44:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:26,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064077760] [2024-11-18 14:44:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:26,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:44:26,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:26,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064077760] [2024-11-18 14:44:26,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064077760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:26,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:26,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:44:26,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751410779] [2024-11-18 14:44:26,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:26,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:44:26,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:26,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:44:26,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:44:26,310 INFO L87 Difference]: Start difference. First operand 31026 states and 43985 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 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) [2024-11-18 14:44:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:27,617 INFO L93 Difference]: Finished difference Result 70304 states and 100312 transitions. [2024-11-18 14:44:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:44:27,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 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 89 [2024-11-18 14:44:27,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:27,734 INFO L225 Difference]: With dead ends: 70304 [2024-11-18 14:44:27,734 INFO L226 Difference]: Without dead ends: 63422 [2024-11-18 14:44:27,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:44:27,758 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 955 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:27,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 992 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:44:27,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63422 states. [2024-11-18 14:44:28,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63422 to 37906. [2024-11-18 14:44:28,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37906 states, 37905 states have (on average 1.4178868223189554) internal successors, (53745), 37905 states have internal predecessors, (53745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37906 states to 37906 states and 53745 transitions. [2024-11-18 14:44:28,823 INFO L78 Accepts]: Start accepts. Automaton has 37906 states and 53745 transitions. Word has length 89 [2024-11-18 14:44:28,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:28,824 INFO L471 AbstractCegarLoop]: Abstraction has 37906 states and 53745 transitions. [2024-11-18 14:44:28,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 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) [2024-11-18 14:44:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 37906 states and 53745 transitions. [2024-11-18 14:44:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:44:28,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:28,828 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:28,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:44:28,828 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:28,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:28,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1699712694, now seen corresponding path program 1 times [2024-11-18 14:44:28,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:28,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090169857] [2024-11-18 14:44:28,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:28,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 14:44:28,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:28,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090169857] [2024-11-18 14:44:28,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090169857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:29,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:29,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:44:29,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367691219] [2024-11-18 14:44:29,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:29,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:44:29,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:29,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:44:29,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:44:29,002 INFO L87 Difference]: Start difference. First operand 37906 states and 53745 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 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) [2024-11-18 14:44:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:30,674 INFO L93 Difference]: Finished difference Result 77184 states and 110072 transitions. [2024-11-18 14:44:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:44:30,675 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 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 89 [2024-11-18 14:44:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:30,789 INFO L225 Difference]: With dead ends: 77184 [2024-11-18 14:44:30,789 INFO L226 Difference]: Without dead ends: 70302 [2024-11-18 14:44:30,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:44:30,808 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 861 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:30,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1141 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:44:30,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70302 states. [2024-11-18 14:44:31,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70302 to 44786. [2024-11-18 14:44:31,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44786 states, 44785 states have (on average 1.4179970972423803) internal successors, (63505), 44785 states have internal predecessors, (63505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:31,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44786 states to 44786 states and 63505 transitions. [2024-11-18 14:44:31,953 INFO L78 Accepts]: Start accepts. Automaton has 44786 states and 63505 transitions. Word has length 89 [2024-11-18 14:44:31,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:31,953 INFO L471 AbstractCegarLoop]: Abstraction has 44786 states and 63505 transitions. [2024-11-18 14:44:31,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 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) [2024-11-18 14:44:31,954 INFO L276 IsEmpty]: Start isEmpty. Operand 44786 states and 63505 transitions. [2024-11-18 14:44:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:44:31,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:31,959 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:31,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:44:31,960 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:31,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1182669314, now seen corresponding path program 1 times [2024-11-18 14:44:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:31,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97651855] [2024-11-18 14:44:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:31,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:32,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97651855] [2024-11-18 14:44:32,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97651855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:32,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:32,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:32,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825662397] [2024-11-18 14:44:32,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:32,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:32,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:32,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:32,067 INFO L87 Difference]: Start difference. First operand 44786 states and 63505 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:32,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:32,883 INFO L93 Difference]: Finished difference Result 76428 states and 108874 transitions. [2024-11-18 14:44:32,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:32,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 [2024-11-18 14:44:32,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:32,929 INFO L225 Difference]: With dead ends: 76428 [2024-11-18 14:44:32,929 INFO L226 Difference]: Without dead ends: 31690 [2024-11-18 14:44:32,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:32,969 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 58 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:32,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 285 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:32,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31690 states. [2024-11-18 14:44:33,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31690 to 31688. [2024-11-18 14:44:33,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31688 states, 31687 states have (on average 1.4201091930444663) internal successors, (44999), 31687 states have internal predecessors, (44999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31688 states to 31688 states and 44999 transitions. [2024-11-18 14:44:33,933 INFO L78 Accepts]: Start accepts. Automaton has 31688 states and 44999 transitions. Word has length 91 [2024-11-18 14:44:33,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:33,933 INFO L471 AbstractCegarLoop]: Abstraction has 31688 states and 44999 transitions. [2024-11-18 14:44:33,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 31688 states and 44999 transitions. [2024-11-18 14:44:33,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:44:33,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:33,937 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:33,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:44:33,937 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:33,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:33,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1501629595, now seen corresponding path program 1 times [2024-11-18 14:44:33,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:33,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294447560] [2024-11-18 14:44:33,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:33,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:34,161 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:44:34,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294447560] [2024-11-18 14:44:34,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294447560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:34,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:34,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:44:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289863217] [2024-11-18 14:44:34,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:34,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:44:34,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:34,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:44:34,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:44:34,166 INFO L87 Difference]: Start difference. First operand 31688 states and 44999 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) [2024-11-18 14:44:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:35,386 INFO L93 Difference]: Finished difference Result 60886 states and 86862 transitions. [2024-11-18 14:44:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:44:35,386 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 91 [2024-11-18 14:44:35,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:35,445 INFO L225 Difference]: With dead ends: 60886 [2024-11-18 14:44:35,445 INFO L226 Difference]: Without dead ends: 56020 [2024-11-18 14:44:35,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:44:35,454 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 928 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:35,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 1230 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:44:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56020 states. [2024-11-18 14:44:36,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56020 to 36552. [2024-11-18 14:44:36,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36552 states, 36551 states have (on average 1.4202347404995759) internal successors, (51911), 36551 states have internal predecessors, (51911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36552 states to 36552 states and 51911 transitions. [2024-11-18 14:44:36,357 INFO L78 Accepts]: Start accepts. Automaton has 36552 states and 51911 transitions. Word has length 91 [2024-11-18 14:44:36,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:36,357 INFO L471 AbstractCegarLoop]: Abstraction has 36552 states and 51911 transitions. [2024-11-18 14:44:36,357 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) [2024-11-18 14:44:36,357 INFO L276 IsEmpty]: Start isEmpty. Operand 36552 states and 51911 transitions. [2024-11-18 14:44:36,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 14:44:36,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:36,360 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:36,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:44:36,360 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:36,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:36,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1061565063, now seen corresponding path program 1 times [2024-11-18 14:44:36,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:36,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733546078] [2024-11-18 14:44:36,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:36,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:36,446 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:36,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:36,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733546078] [2024-11-18 14:44:36,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733546078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:36,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:36,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:36,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275255718] [2024-11-18 14:44:36,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:36,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:36,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:36,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:36,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:36,449 INFO L87 Difference]: Start difference. First operand 36552 states and 51911 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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) [2024-11-18 14:44:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:36,836 INFO L93 Difference]: Finished difference Result 54796 states and 77833 transitions. [2024-11-18 14:44:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:36,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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 [2024-11-18 14:44:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:36,867 INFO L225 Difference]: With dead ends: 54796 [2024-11-18 14:44:36,867 INFO L226 Difference]: Without dead ends: 18314 [2024-11-18 14:44:36,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:36,896 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 53 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:36,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 270 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:36,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18314 states. [2024-11-18 14:44:37,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18314 to 18312. [2024-11-18 14:44:37,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18312 states, 18311 states have (on average 1.4063131451040358) internal successors, (25751), 18311 states have internal predecessors, (25751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:37,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18312 states to 18312 states and 25751 transitions. [2024-11-18 14:44:37,713 INFO L78 Accepts]: Start accepts. Automaton has 18312 states and 25751 transitions. Word has length 92 [2024-11-18 14:44:37,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:37,713 INFO L471 AbstractCegarLoop]: Abstraction has 18312 states and 25751 transitions. [2024-11-18 14:44:37,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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) [2024-11-18 14:44:37,713 INFO L276 IsEmpty]: Start isEmpty. Operand 18312 states and 25751 transitions. [2024-11-18 14:44:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 14:44:37,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:37,716 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:37,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:44:37,716 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:37,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:37,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1358904597, now seen corresponding path program 1 times [2024-11-18 14:44:37,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:37,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906518129] [2024-11-18 14:44:37,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:37,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:37,827 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:37,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:37,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906518129] [2024-11-18 14:44:37,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906518129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:37,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:37,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:37,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553946086] [2024-11-18 14:44:37,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:37,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:37,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:37,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:37,830 INFO L87 Difference]: Start difference. First operand 18312 states and 25751 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:38,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:38,188 INFO L93 Difference]: Finished difference Result 27436 states and 38593 transitions. [2024-11-18 14:44:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:38,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 14:44:38,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:38,201 INFO L225 Difference]: With dead ends: 27436 [2024-11-18 14:44:38,202 INFO L226 Difference]: Without dead ends: 9194 [2024-11-18 14:44:38,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:38,215 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 50 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:38,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 255 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:38,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9194 states. [2024-11-18 14:44:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9194 to 9192. [2024-11-18 14:44:38,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9192 states, 9191 states have (on average 1.3916875204003918) internal successors, (12791), 9191 states have internal predecessors, (12791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9192 states to 9192 states and 12791 transitions. [2024-11-18 14:44:38,453 INFO L78 Accepts]: Start accepts. Automaton has 9192 states and 12791 transitions. Word has length 94 [2024-11-18 14:44:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:38,453 INFO L471 AbstractCegarLoop]: Abstraction has 9192 states and 12791 transitions. [2024-11-18 14:44:38,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:38,454 INFO L276 IsEmpty]: Start isEmpty. Operand 9192 states and 12791 transitions. [2024-11-18 14:44:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 14:44:38,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:38,456 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:38,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:44:38,456 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:38,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1035230941, now seen corresponding path program 1 times [2024-11-18 14:44:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:38,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853714103] [2024-11-18 14:44:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:38,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:38,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853714103] [2024-11-18 14:44:38,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853714103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:38,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:38,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565060364] [2024-11-18 14:44:38,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:38,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:38,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:38,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:38,552 INFO L87 Difference]: Start difference. First operand 9192 states and 12791 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:38,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:38,684 INFO L93 Difference]: Finished difference Result 13756 states and 19153 transitions. [2024-11-18 14:44:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:38,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-18 14:44:38,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:38,733 INFO L225 Difference]: With dead ends: 13756 [2024-11-18 14:44:38,733 INFO L226 Difference]: Without dead ends: 4634 [2024-11-18 14:44:38,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:38,736 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 47 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:38,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 240 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:38,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4634 states. [2024-11-18 14:44:38,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4634 to 4632. [2024-11-18 14:44:38,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.3757287842798531) internal successors, (6371), 4631 states have internal predecessors, (6371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 6371 transitions. [2024-11-18 14:44:38,823 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 6371 transitions. Word has length 96 [2024-11-18 14:44:38,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:38,824 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 6371 transitions. [2024-11-18 14:44:38,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:38,824 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 6371 transitions. [2024-11-18 14:44:38,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-18 14:44:38,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:38,825 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:38,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:44:38,826 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:38,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:38,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1914159439, now seen corresponding path program 1 times [2024-11-18 14:44:38,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:38,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644465657] [2024-11-18 14:44:38,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:38,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:38,906 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:38,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:38,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644465657] [2024-11-18 14:44:38,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644465657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:38,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:38,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:38,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248507963] [2024-11-18 14:44:38,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:38,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:38,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:38,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:38,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:38,908 INFO L87 Difference]: Start difference. First operand 4632 states and 6371 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:38,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:38,976 INFO L93 Difference]: Finished difference Result 6916 states and 9523 transitions. [2024-11-18 14:44:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:38,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-18 14:44:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:38,981 INFO L225 Difference]: With dead ends: 6916 [2024-11-18 14:44:38,981 INFO L226 Difference]: Without dead ends: 2354 [2024-11-18 14:44:38,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:38,985 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 44 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:38,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 225 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:38,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2024-11-18 14:44:39,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2352. [2024-11-18 14:44:39,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2351 states have (on average 1.3572947681837515) internal successors, (3191), 2351 states have internal predecessors, (3191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3191 transitions. [2024-11-18 14:44:39,032 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3191 transitions. Word has length 98 [2024-11-18 14:44:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:39,032 INFO L471 AbstractCegarLoop]: Abstraction has 2352 states and 3191 transitions. [2024-11-18 14:44:39,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3191 transitions. [2024-11-18 14:44:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-18 14:44:39,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:39,034 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:39,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:44:39,034 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:39,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:39,035 INFO L85 PathProgramCache]: Analyzing trace with hash -489289151, now seen corresponding path program 1 times [2024-11-18 14:44:39,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:39,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253490500] [2024-11-18 14:44:39,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:39,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:39,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:39,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253490500] [2024-11-18 14:44:39,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253490500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:44:39,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:44:39,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:44:39,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17920781] [2024-11-18 14:44:39,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:44:39,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:44:39,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:39,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:44:39,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:39,112 INFO L87 Difference]: Start difference. First operand 2352 states and 3191 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:39,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:39,148 INFO L93 Difference]: Finished difference Result 3496 states and 4753 transitions. [2024-11-18 14:44:39,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:44:39,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-18 14:44:39,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:39,151 INFO L225 Difference]: With dead ends: 3496 [2024-11-18 14:44:39,151 INFO L226 Difference]: Without dead ends: 1214 [2024-11-18 14:44:39,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:44:39,153 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 41 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:39,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 210 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:44:39,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-11-18 14:44:39,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1212. [2024-11-18 14:44:39,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1211 states have (on average 1.3344343517753923) internal successors, (1616), 1211 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:39,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1616 transitions. [2024-11-18 14:44:39,180 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1616 transitions. Word has length 100 [2024-11-18 14:44:39,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:39,181 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1616 transitions. [2024-11-18 14:44:39,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:39,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1616 transitions. [2024-11-18 14:44:39,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 14:44:39,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:39,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:39,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:44:39,182 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:39,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1442686541, now seen corresponding path program 1 times [2024-11-18 14:44:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:39,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450406448] [2024-11-18 14:44:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:40,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:40,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450406448] [2024-11-18 14:44:40,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450406448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:44:40,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870654066] [2024-11-18 14:44:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:40,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:44:40,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:44:40,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:44:40,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:44:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:40,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 14:44:40,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:44:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:44:40,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:44:40,761 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:44:40,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870654066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:44:40,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:44:40,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-18 14:44:40,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451207255] [2024-11-18 14:44:40,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:44:40,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 14:44:40,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:40,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 14:44:40,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-18 14:44:40,764 INFO L87 Difference]: Start difference. First operand 1212 states and 1616 transitions. Second operand has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:42,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:42,810 INFO L93 Difference]: Finished difference Result 8631 states and 11535 transitions. [2024-11-18 14:44:42,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-18 14:44:42,811 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 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 102 [2024-11-18 14:44:42,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:42,820 INFO L225 Difference]: With dead ends: 8631 [2024-11-18 14:44:42,820 INFO L226 Difference]: Without dead ends: 7489 [2024-11-18 14:44:42,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=699, Invalid=3083, Unknown=0, NotChecked=0, Total=3782 [2024-11-18 14:44:42,825 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1894 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:42,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 1119 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:44:42,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7489 states. [2024-11-18 14:44:42,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7489 to 7437. [2024-11-18 14:44:42,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7437 states, 7436 states have (on average 1.2852339967724584) internal successors, (9557), 7436 states have internal predecessors, (9557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7437 states to 7437 states and 9557 transitions. [2024-11-18 14:44:42,994 INFO L78 Accepts]: Start accepts. Automaton has 7437 states and 9557 transitions. Word has length 102 [2024-11-18 14:44:42,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:42,995 INFO L471 AbstractCegarLoop]: Abstraction has 7437 states and 9557 transitions. [2024-11-18 14:44:42,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7437 states and 9557 transitions. [2024-11-18 14:44:42,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 14:44:42,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:42,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:43,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:44:43,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-18 14:44:43,201 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:43,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:43,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1841782229, now seen corresponding path program 1 times [2024-11-18 14:44:43,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:43,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633946444] [2024-11-18 14:44:43,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:43,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:44,888 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:44,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:44,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633946444] [2024-11-18 14:44:44,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633946444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:44:44,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325230207] [2024-11-18 14:44:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:44,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:44:44,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:44:44,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:44:44,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:44:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:45,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 14:44:45,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:44:45,603 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:45,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:44:46,559 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:46,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325230207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:44:46,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:44:46,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-18 14:44:46,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813583328] [2024-11-18 14:44:46,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:44:46,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-18 14:44:46,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:46,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-18 14:44:46,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2024-11-18 14:44:46,562 INFO L87 Difference]: Start difference. First operand 7437 states and 9557 transitions. Second operand has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:49,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:49,795 INFO L93 Difference]: Finished difference Result 38704 states and 50218 transitions. [2024-11-18 14:44:49,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-18 14:44:49,795 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 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 103 [2024-11-18 14:44:49,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:49,829 INFO L225 Difference]: With dead ends: 38704 [2024-11-18 14:44:49,829 INFO L226 Difference]: Without dead ends: 31524 [2024-11-18 14:44:49,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=906, Invalid=3786, Unknown=0, NotChecked=0, Total=4692 [2024-11-18 14:44:49,843 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 2445 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2445 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:49,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2445 Valid, 1243 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:44:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31524 states. [2024-11-18 14:44:50,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31524 to 31168. [2024-11-18 14:44:50,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31168 states, 31167 states have (on average 1.2727243558892418) internal successors, (39667), 31167 states have internal predecessors, (39667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31168 states to 31168 states and 39667 transitions. [2024-11-18 14:44:50,996 INFO L78 Accepts]: Start accepts. Automaton has 31168 states and 39667 transitions. Word has length 103 [2024-11-18 14:44:50,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:50,997 INFO L471 AbstractCegarLoop]: Abstraction has 31168 states and 39667 transitions. [2024-11-18 14:44:50,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 31168 states and 39667 transitions. [2024-11-18 14:44:50,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 14:44:50,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:51,000 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:51,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:44:51,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-18 14:44:51,201 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:51,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1920229931, now seen corresponding path program 1 times [2024-11-18 14:44:51,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:51,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083916283] [2024-11-18 14:44:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:51,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:51,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:51,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083916283] [2024-11-18 14:44:51,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083916283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:44:51,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384313964] [2024-11-18 14:44:51,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:51,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:44:51,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:44:51,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:44:51,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:44:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:51,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 14:44:51,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:44:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:52,229 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:44:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:53,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384313964] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:44:53,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:44:53,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-18 14:44:53,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149666879] [2024-11-18 14:44:53,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:44:53,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-18 14:44:53,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-18 14:44:53,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-18 14:44:53,268 INFO L87 Difference]: Start difference. First operand 31168 states and 39667 transitions. Second operand has 21 states, 21 states have (on average 10.476190476190476) internal successors, (220), 20 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:54,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:44:54,521 INFO L93 Difference]: Finished difference Result 66978 states and 85476 transitions. [2024-11-18 14:44:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:44:54,522 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.476190476190476) internal successors, (220), 20 states have internal predecessors, (220), 0 states have call successors, (0), 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 103 [2024-11-18 14:44:54,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:44:54,571 INFO L225 Difference]: With dead ends: 66978 [2024-11-18 14:44:54,571 INFO L226 Difference]: Without dead ends: 38766 [2024-11-18 14:44:54,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-18 14:44:54,593 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 1234 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:44:54,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 578 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:44:54,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38766 states. [2024-11-18 14:44:55,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38766 to 38762. [2024-11-18 14:44:55,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38762 states, 38761 states have (on average 1.268904311034287) internal successors, (49184), 38761 states have internal predecessors, (49184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:55,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38762 states to 38762 states and 49184 transitions. [2024-11-18 14:44:55,800 INFO L78 Accepts]: Start accepts. Automaton has 38762 states and 49184 transitions. Word has length 103 [2024-11-18 14:44:55,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:44:55,800 INFO L471 AbstractCegarLoop]: Abstraction has 38762 states and 49184 transitions. [2024-11-18 14:44:55,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.476190476190476) internal successors, (220), 20 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:44:55,801 INFO L276 IsEmpty]: Start isEmpty. Operand 38762 states and 49184 transitions. [2024-11-18 14:44:55,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 14:44:55,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:44:55,802 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:44:55,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 14:44:56,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:44:56,003 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:44:56,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:44:56,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1335552731, now seen corresponding path program 1 times [2024-11-18 14:44:56,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:44:56,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383985022] [2024-11-18 14:44:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:56,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:44:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:57,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:44:57,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383985022] [2024-11-18 14:44:57,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383985022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:44:57,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810854196] [2024-11-18 14:44:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:44:57,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:44:57,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:44:57,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:44:57,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:44:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:44:57,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 14:44:57,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:44:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:57,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:44:58,294 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:44:58,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810854196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:44:58,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:44:58,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-18 14:44:58,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416037238] [2024-11-18 14:44:58,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:44:58,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-18 14:44:58,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:44:58,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-18 14:44:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2024-11-18 14:44:58,296 INFO L87 Difference]: Start difference. First operand 38762 states and 49184 transitions. Second operand has 28 states, 28 states have (on average 9.535714285714286) internal successors, (267), 27 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:01,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:01,416 INFO L93 Difference]: Finished difference Result 113801 states and 144899 transitions. [2024-11-18 14:45:01,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-18 14:45:01,417 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.535714285714286) internal successors, (267), 27 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-18 14:45:01,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:01,500 INFO L225 Difference]: With dead ends: 113801 [2024-11-18 14:45:01,500 INFO L226 Difference]: Without dead ends: 79097 [2024-11-18 14:45:01,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=692, Invalid=2614, Unknown=0, NotChecked=0, Total=3306 [2024-11-18 14:45:01,531 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 1992 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:01,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 1165 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:45:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79097 states. [2024-11-18 14:45:04,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79097 to 78543. [2024-11-18 14:45:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78543 states, 78542 states have (on average 1.2591861679101628) internal successors, (98899), 78542 states have internal predecessors, (98899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78543 states to 78543 states and 98899 transitions. [2024-11-18 14:45:04,301 INFO L78 Accepts]: Start accepts. Automaton has 78543 states and 98899 transitions. Word has length 104 [2024-11-18 14:45:04,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:04,301 INFO L471 AbstractCegarLoop]: Abstraction has 78543 states and 98899 transitions. [2024-11-18 14:45:04,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.535714285714286) internal successors, (267), 27 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 78543 states and 98899 transitions. [2024-11-18 14:45:04,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 14:45:04,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:04,305 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:45:04,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 14:45:04,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-18 14:45:04,506 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:04,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:04,507 INFO L85 PathProgramCache]: Analyzing trace with hash -153904091, now seen corresponding path program 1 times [2024-11-18 14:45:04,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:04,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900191514] [2024-11-18 14:45:04,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:04,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:05,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:05,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900191514] [2024-11-18 14:45:05,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900191514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:45:05,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797317178] [2024-11-18 14:45:05,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:05,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:45:05,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:45:05,149 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:45:05,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:45:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:05,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 14:45:05,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:45:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:05,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:45:06,438 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:06,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797317178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:45:06,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:45:06,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-18 14:45:06,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541414068] [2024-11-18 14:45:06,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:45:06,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-18 14:45:06,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:06,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-18 14:45:06,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-18 14:45:06,440 INFO L87 Difference]: Start difference. First operand 78543 states and 98899 transitions. Second operand has 25 states, 25 states have (on average 11.4) internal successors, (285), 24 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)