./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c7460e797ab98c965c0146dc16cfd1742d13d580f8dc4b4e90e3d1aa36d777a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 19:04:58,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:04:58,110 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 19:04:58,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:04:58,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:04:58,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:04:58,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:04:58,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:04:58,140 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:04:58,141 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:04:58,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:04:58,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:04:58,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:04:58,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:04:58,144 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:04:58,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:04:58,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:04:58,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:04:58,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:04:58,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:04:58,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:04:58,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:04:58,148 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:04:58,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:04:58,149 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:04:58,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:04:58,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:04:58,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:04:58,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:04:58,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:04:58,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:04:58,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:04:58,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:04:58,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:04:58,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:04:58,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:04:58,151 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:04:58,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:04:58,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:04:58,151 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7460e797ab98c965c0146dc16cfd1742d13d580f8dc4b4e90e3d1aa36d777a [2024-11-08 19:04:58,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:04:58,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:04:58,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:04:58,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:04:58,383 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:04:58,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2024-11-08 19:04:59,787 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:04:59,987 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:04:59,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2024-11-08 19:05:00,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9587adc2a/095b828722b849cd99023051da4c2e76/FLAGb638bb7e0 [2024-11-08 19:05:00,359 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9587adc2a/095b828722b849cd99023051da4c2e76 [2024-11-08 19:05:00,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:05:00,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:05:00,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:05:00,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:05:00,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:05:00,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f148476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00, skipping insertion in model container [2024-11-08 19:05:00,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:05:00,535 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1253,1266] [2024-11-08 19:05:00,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:05:00,631 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:05:00,647 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1253,1266] [2024-11-08 19:05:00,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:05:00,727 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:05:00,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00 WrapperNode [2024-11-08 19:05:00,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:05:00,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:05:00,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:05:00,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:05:00,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,887 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 651 [2024-11-08 19:05:00,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:05:00,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:05:00,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:05:00,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:05:00,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,960 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 19:05:00,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:00,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:01,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:01,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:05:01,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:05:01,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:05:01,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:05:01,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (1/1) ... [2024-11-08 19:05:01,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:05:01,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:05:01,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:05:01,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:05:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:05:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:05:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:05:01,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:05:01,271 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:05:01,275 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:05:01,963 INFO L? ?]: Removed 394 outVars from TransFormulas that were not future-live. [2024-11-08 19:05:01,963 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:05:01,975 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:05:01,976 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:05:01,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:01 BoogieIcfgContainer [2024-11-08 19:05:01,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:05:01,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:05:01,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:05:01,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:05:01,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:05:00" (1/3) ... [2024-11-08 19:05:01,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27447a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:05:01, skipping insertion in model container [2024-11-08 19:05:01,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:00" (2/3) ... [2024-11-08 19:05:01,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27447a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:05:01, skipping insertion in model container [2024-11-08 19:05:01,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:01" (3/3) ... [2024-11-08 19:05:01,982 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_1.c [2024-11-08 19:05:01,995 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:05:01,995 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:05:02,044 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:05:02,050 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;@53f7646a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:05:02,050 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:05:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 193 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:02,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 19:05:02,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:02,060 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] [2024-11-08 19:05:02,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:02,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1579872556, now seen corresponding path program 1 times [2024-11-08 19:05:02,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:02,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106307382] [2024-11-08 19:05:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:02,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:02,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:02,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106307382] [2024-11-08 19:05:02,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106307382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:02,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:02,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:05:02,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7651879] [2024-11-08 19:05:02,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:02,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:05:02,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:02,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:05:02,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:05:02,590 INFO L87 Difference]: Start difference. First operand has 194 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 193 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:02,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:02,648 INFO L93 Difference]: Finished difference Result 349 states and 519 transitions. [2024-11-08 19:05:02,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:05:02,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-08 19:05:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:02,659 INFO L225 Difference]: With dead ends: 349 [2024-11-08 19:05:02,659 INFO L226 Difference]: Without dead ends: 193 [2024-11-08 19:05:02,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:05:02,663 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:02,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 837 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-08 19:05:02,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-11-08 19:05:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.484375) internal successors, (285), 192 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) [2024-11-08 19:05:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 285 transitions. [2024-11-08 19:05:02,695 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 285 transitions. Word has length 27 [2024-11-08 19:05:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:02,695 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 285 transitions. [2024-11-08 19:05:02,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 285 transitions. [2024-11-08 19:05:02,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 19:05:02,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:02,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:02,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:05:02,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:02,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:02,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1729713684, now seen corresponding path program 1 times [2024-11-08 19:05:02,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:02,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643507608] [2024-11-08 19:05:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:02,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:02,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:02,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643507608] [2024-11-08 19:05:02,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643507608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:02,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:02,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:05:02,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418442883] [2024-11-08 19:05:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:02,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:05:02,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:02,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:05:02,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:05:02,792 INFO L87 Difference]: Start difference. First operand 193 states and 285 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:02,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:02,821 INFO L93 Difference]: Finished difference Result 350 states and 517 transitions. [2024-11-08 19:05:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:05:02,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-08 19:05:02,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:02,823 INFO L225 Difference]: With dead ends: 350 [2024-11-08 19:05:02,823 INFO L226 Difference]: Without dead ends: 195 [2024-11-08 19:05:02,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:05:02,824 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:02,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 833 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:02,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-08 19:05:02,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-08 19:05:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 1.4793814432989691) internal successors, (287), 194 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:02,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 287 transitions. [2024-11-08 19:05:02,833 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 287 transitions. Word has length 28 [2024-11-08 19:05:02,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:02,833 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 287 transitions. [2024-11-08 19:05:02,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:02,834 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 287 transitions. [2024-11-08 19:05:02,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 19:05:02,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:02,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:02,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:05:02,835 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:02,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:02,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1115484845, now seen corresponding path program 1 times [2024-11-08 19:05:02,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:02,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574130829] [2024-11-08 19:05:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:02,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:02,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:02,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:02,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574130829] [2024-11-08 19:05:02,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574130829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:02,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:02,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:02,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628197949] [2024-11-08 19:05:02,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:02,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:02,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:02,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:02,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:02,990 INFO L87 Difference]: Start difference. First operand 195 states and 287 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:03,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:03,071 INFO L93 Difference]: Finished difference Result 483 states and 712 transitions. [2024-11-08 19:05:03,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:03,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-08 19:05:03,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:03,073 INFO L225 Difference]: With dead ends: 483 [2024-11-08 19:05:03,076 INFO L226 Difference]: Without dead ends: 326 [2024-11-08 19:05:03,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:03,077 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 649 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:03,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 813 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:03,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-08 19:05:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 197. [2024-11-08 19:05:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 1.4744897959183674) internal successors, (289), 196 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:03,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 289 transitions. [2024-11-08 19:05:03,139 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 289 transitions. Word has length 29 [2024-11-08 19:05:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:03,139 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 289 transitions. [2024-11-08 19:05:03,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 289 transitions. [2024-11-08 19:05:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 19:05:03,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:03,146 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:03,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:05:03,150 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:03,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:03,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1751736360, now seen corresponding path program 1 times [2024-11-08 19:05:03,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:03,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206083210] [2024-11-08 19:05:03,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:03,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:03,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:03,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:03,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206083210] [2024-11-08 19:05:03,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206083210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:03,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:03,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:03,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858136420] [2024-11-08 19:05:03,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:03,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:03,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:03,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:03,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:03,964 INFO L87 Difference]: Start difference. First operand 197 states and 289 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:04,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:04,037 INFO L93 Difference]: Finished difference Result 475 states and 699 transitions. [2024-11-08 19:05:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:04,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2024-11-08 19:05:04,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:04,039 INFO L225 Difference]: With dead ends: 475 [2024-11-08 19:05:04,039 INFO L226 Difference]: Without dead ends: 318 [2024-11-08 19:05:04,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:04,042 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 597 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:04,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 805 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:04,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-08 19:05:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 244. [2024-11-08 19:05:04,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 1.4650205761316872) internal successors, (356), 243 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 356 transitions. [2024-11-08 19:05:04,057 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 356 transitions. Word has length 106 [2024-11-08 19:05:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:04,058 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 356 transitions. [2024-11-08 19:05:04,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 356 transitions. [2024-11-08 19:05:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 19:05:04,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:04,060 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:04,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:05:04,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:04,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:04,061 INFO L85 PathProgramCache]: Analyzing trace with hash 481492987, now seen corresponding path program 1 times [2024-11-08 19:05:04,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:04,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265548228] [2024-11-08 19:05:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:04,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:04,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265548228] [2024-11-08 19:05:04,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265548228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:04,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:04,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:04,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843322984] [2024-11-08 19:05:04,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:04,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:04,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:04,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:04,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:04,686 INFO L87 Difference]: Start difference. First operand 244 states and 356 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:04,750 INFO L93 Difference]: Finished difference Result 475 states and 697 transitions. [2024-11-08 19:05:04,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:04,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-08 19:05:04,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:04,752 INFO L225 Difference]: With dead ends: 475 [2024-11-08 19:05:04,752 INFO L226 Difference]: Without dead ends: 318 [2024-11-08 19:05:04,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:04,753 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 575 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:04,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 804 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:04,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-08 19:05:04,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 279. [2024-11-08 19:05:04,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 278 states have (on average 1.4640287769784173) internal successors, (407), 278 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:04,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 407 transitions. [2024-11-08 19:05:04,759 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 407 transitions. Word has length 108 [2024-11-08 19:05:04,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:04,760 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 407 transitions. [2024-11-08 19:05:04,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:04,760 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 407 transitions. [2024-11-08 19:05:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 19:05:04,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:04,762 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:04,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:05:04,763 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:04,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:04,763 INFO L85 PathProgramCache]: Analyzing trace with hash -338239037, now seen corresponding path program 1 times [2024-11-08 19:05:04,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:04,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518604398] [2024-11-08 19:05:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:05,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:05,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518604398] [2024-11-08 19:05:05,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518604398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:05,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:05,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:05,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542188739] [2024-11-08 19:05:05,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:05,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:05,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:05,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:05,184 INFO L87 Difference]: Start difference. First operand 279 states and 407 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:05,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:05,234 INFO L93 Difference]: Finished difference Result 533 states and 780 transitions. [2024-11-08 19:05:05,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:05,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-08 19:05:05,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:05,236 INFO L225 Difference]: With dead ends: 533 [2024-11-08 19:05:05,236 INFO L226 Difference]: Without dead ends: 318 [2024-11-08 19:05:05,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:05,237 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 603 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:05,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 811 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-08 19:05:05,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 279. [2024-11-08 19:05:05,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 278 states have (on average 1.4568345323741008) internal successors, (405), 278 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:05,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 405 transitions. [2024-11-08 19:05:05,242 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 405 transitions. Word has length 109 [2024-11-08 19:05:05,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:05,242 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 405 transitions. [2024-11-08 19:05:05,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:05,243 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 405 transitions. [2024-11-08 19:05:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 19:05:05,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:05,245 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:05,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:05:05,245 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:05,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:05,246 INFO L85 PathProgramCache]: Analyzing trace with hash 736900224, now seen corresponding path program 1 times [2024-11-08 19:05:05,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:05,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467821674] [2024-11-08 19:05:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:05,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:05,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:05,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467821674] [2024-11-08 19:05:05,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467821674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:05,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:05,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:05,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911198908] [2024-11-08 19:05:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:05,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:05,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:05,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:05,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:05,725 INFO L87 Difference]: Start difference. First operand 279 states and 405 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:05,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:05,787 INFO L93 Difference]: Finished difference Result 475 states and 694 transitions. [2024-11-08 19:05:05,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:05,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-08 19:05:05,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:05,788 INFO L225 Difference]: With dead ends: 475 [2024-11-08 19:05:05,788 INFO L226 Difference]: Without dead ends: 318 [2024-11-08 19:05:05,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:05,789 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 556 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:05,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 804 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:05,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-08 19:05:05,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 299. [2024-11-08 19:05:05,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.4563758389261745) internal successors, (434), 298 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 434 transitions. [2024-11-08 19:05:05,794 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 434 transitions. Word has length 111 [2024-11-08 19:05:05,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:05,795 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 434 transitions. [2024-11-08 19:05:05,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:05,795 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 434 transitions. [2024-11-08 19:05:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 19:05:05,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:05,796 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:05,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:05:05,796 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:05,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:05,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1350775393, now seen corresponding path program 1 times [2024-11-08 19:05:05,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:05,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123730920] [2024-11-08 19:05:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:05,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:06,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123730920] [2024-11-08 19:05:06,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123730920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:06,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:06,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:06,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141504370] [2024-11-08 19:05:06,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:06,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:06,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:06,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:06,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:06,319 INFO L87 Difference]: Start difference. First operand 299 states and 434 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:06,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:06,385 INFO L93 Difference]: Finished difference Result 478 states and 698 transitions. [2024-11-08 19:05:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:06,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-11-08 19:05:06,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:06,388 INFO L225 Difference]: With dead ends: 478 [2024-11-08 19:05:06,388 INFO L226 Difference]: Without dead ends: 321 [2024-11-08 19:05:06,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:06,389 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 549 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:06,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 800 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:06,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-08 19:05:06,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2024-11-08 19:05:06,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 1.4559748427672956) internal successors, (463), 318 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 463 transitions. [2024-11-08 19:05:06,398 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 463 transitions. Word has length 112 [2024-11-08 19:05:06,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:06,398 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 463 transitions. [2024-11-08 19:05:06,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 463 transitions. [2024-11-08 19:05:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 19:05:06,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:06,399 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:06,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:05:06,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:06,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1363731229, now seen corresponding path program 1 times [2024-11-08 19:05:06,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:06,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712955349] [2024-11-08 19:05:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:06,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:06,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:06,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712955349] [2024-11-08 19:05:06,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712955349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:06,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:06,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:06,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632809173] [2024-11-08 19:05:06,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:06,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:06,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:06,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:06,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:06,861 INFO L87 Difference]: Start difference. First operand 319 states and 463 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:06,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:06,947 INFO L93 Difference]: Finished difference Result 483 states and 704 transitions. [2024-11-08 19:05:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:06,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-08 19:05:06,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:06,949 INFO L225 Difference]: With dead ends: 483 [2024-11-08 19:05:06,949 INFO L226 Difference]: Without dead ends: 326 [2024-11-08 19:05:06,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:06,950 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 558 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:06,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1226 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:06,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-08 19:05:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 322. [2024-11-08 19:05:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.4548286604361371) internal successors, (467), 321 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:06,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 467 transitions. [2024-11-08 19:05:06,955 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 467 transitions. Word has length 113 [2024-11-08 19:05:06,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:06,955 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 467 transitions. [2024-11-08 19:05:06,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 467 transitions. [2024-11-08 19:05:06,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 19:05:06,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:06,956 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:06,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:05:06,956 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:06,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:06,957 INFO L85 PathProgramCache]: Analyzing trace with hash -747703928, now seen corresponding path program 1 times [2024-11-08 19:05:06,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:06,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752509377] [2024-11-08 19:05:06,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:06,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:07,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:07,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752509377] [2024-11-08 19:05:07,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752509377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:07,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:07,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555323209] [2024-11-08 19:05:07,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:07,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:07,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:07,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:07,384 INFO L87 Difference]: Start difference. First operand 322 states and 467 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:07,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:07,476 INFO L93 Difference]: Finished difference Result 502 states and 730 transitions. [2024-11-08 19:05:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:07,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-08 19:05:07,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:07,477 INFO L225 Difference]: With dead ends: 502 [2024-11-08 19:05:07,477 INFO L226 Difference]: Without dead ends: 328 [2024-11-08 19:05:07,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:07,478 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 573 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:07,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1226 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:07,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-08 19:05:07,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 324. [2024-11-08 19:05:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.4520123839009287) internal successors, (469), 323 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 469 transitions. [2024-11-08 19:05:07,484 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 469 transitions. Word has length 114 [2024-11-08 19:05:07,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:07,484 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 469 transitions. [2024-11-08 19:05:07,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:07,484 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 469 transitions. [2024-11-08 19:05:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 19:05:07,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:07,485 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:07,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:05:07,485 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:07,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:07,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1275613194, now seen corresponding path program 1 times [2024-11-08 19:05:07,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:07,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149623236] [2024-11-08 19:05:07,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:07,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:07,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:07,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149623236] [2024-11-08 19:05:07,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149623236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:07,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:07,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:07,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046394149] [2024-11-08 19:05:07,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:07,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:07,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:07,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:07,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:07,934 INFO L87 Difference]: Start difference. First operand 324 states and 469 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:08,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:08,019 INFO L93 Difference]: Finished difference Result 491 states and 714 transitions. [2024-11-08 19:05:08,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:08,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-08 19:05:08,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:08,021 INFO L225 Difference]: With dead ends: 491 [2024-11-08 19:05:08,021 INFO L226 Difference]: Without dead ends: 334 [2024-11-08 19:05:08,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:08,022 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 566 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:08,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1146 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:08,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-08 19:05:08,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 330. [2024-11-08 19:05:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 329 states have (on average 1.4498480243161094) internal successors, (477), 329 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 477 transitions. [2024-11-08 19:05:08,031 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 477 transitions. Word has length 115 [2024-11-08 19:05:08,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:08,032 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 477 transitions. [2024-11-08 19:05:08,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:08,032 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 477 transitions. [2024-11-08 19:05:08,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 19:05:08,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:08,033 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:08,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:05:08,033 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:08,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:08,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1251688026, now seen corresponding path program 1 times [2024-11-08 19:05:08,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:08,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074802924] [2024-11-08 19:05:08,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:08,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:08,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:08,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074802924] [2024-11-08 19:05:08,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074802924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:08,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:08,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:05:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221190633] [2024-11-08 19:05:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:08,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:05:08,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:05:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:05:08,594 INFO L87 Difference]: Start difference. First operand 330 states and 477 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:08,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:08,666 INFO L93 Difference]: Finished difference Result 536 states and 777 transitions. [2024-11-08 19:05:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:08,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-08 19:05:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:08,668 INFO L225 Difference]: With dead ends: 536 [2024-11-08 19:05:08,668 INFO L226 Difference]: Without dead ends: 330 [2024-11-08 19:05:08,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:05:08,668 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 565 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:08,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1070 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:08,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-08 19:05:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-08 19:05:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 329 states have (on average 1.446808510638298) internal successors, (476), 329 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 476 transitions. [2024-11-08 19:05:08,673 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 476 transitions. Word has length 115 [2024-11-08 19:05:08,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:08,674 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 476 transitions. [2024-11-08 19:05:08,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:08,674 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 476 transitions. [2024-11-08 19:05:08,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 19:05:08,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:08,675 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:08,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:05:08,675 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:08,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:08,676 INFO L85 PathProgramCache]: Analyzing trace with hash -182504569, now seen corresponding path program 1 times [2024-11-08 19:05:08,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:08,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170497302] [2024-11-08 19:05:08,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:08,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:09,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:09,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170497302] [2024-11-08 19:05:09,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170497302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:09,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391018428] [2024-11-08 19:05:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:09,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:09,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:05:09,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:09,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:05:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:09,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-08 19:05:09,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:10,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:11,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391018428] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:05:11,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:05:11,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 12] total 32 [2024-11-08 19:05:11,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376177602] [2024-11-08 19:05:11,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:05:11,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 19:05:11,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:11,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 19:05:11,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=856, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:05:11,371 INFO L87 Difference]: Start difference. First operand 330 states and 476 transitions. Second operand has 32 states, 32 states have (on average 10.5) internal successors, (336), 32 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) [2024-11-08 19:05:12,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:12,773 INFO L93 Difference]: Finished difference Result 880 states and 1272 transitions. [2024-11-08 19:05:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 19:05:12,774 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 10.5) internal successors, (336), 32 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) Word has length 116 [2024-11-08 19:05:12,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:12,776 INFO L225 Difference]: With dead ends: 880 [2024-11-08 19:05:12,776 INFO L226 Difference]: Without dead ends: 601 [2024-11-08 19:05:12,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=373, Invalid=1883, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 19:05:12,778 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 2288 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 4180 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:12,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 4180 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 19:05:12,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-08 19:05:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 472. [2024-11-08 19:05:12,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.4331210191082802) internal successors, (675), 471 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:12,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 675 transitions. [2024-11-08 19:05:12,786 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 675 transitions. Word has length 116 [2024-11-08 19:05:12,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:12,786 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 675 transitions. [2024-11-08 19:05:12,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.5) internal successors, (336), 32 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) [2024-11-08 19:05:12,786 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 675 transitions. [2024-11-08 19:05:12,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 19:05:12,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:12,787 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:12,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:05:12,988 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,SelfDestructingSolverStorable12 [2024-11-08 19:05:12,989 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:12,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:12,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1218739401, now seen corresponding path program 1 times [2024-11-08 19:05:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308567207] [2024-11-08 19:05:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:12,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:13,213 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:13,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:13,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308567207] [2024-11-08 19:05:13,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308567207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:13,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:13,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:13,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461651649] [2024-11-08 19:05:13,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:13,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:13,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:13,216 INFO L87 Difference]: Start difference. First operand 472 states and 675 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:13,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:13,260 INFO L93 Difference]: Finished difference Result 752 states and 1079 transitions. [2024-11-08 19:05:13,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:13,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-08 19:05:13,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:13,262 INFO L225 Difference]: With dead ends: 752 [2024-11-08 19:05:13,262 INFO L226 Difference]: Without dead ends: 471 [2024-11-08 19:05:13,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:13,263 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 617 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:13,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 814 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:13,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-08 19:05:13,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 469. [2024-11-08 19:05:13,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.4294871794871795) internal successors, (669), 468 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 669 transitions. [2024-11-08 19:05:13,270 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 669 transitions. Word has length 117 [2024-11-08 19:05:13,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:13,270 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 669 transitions. [2024-11-08 19:05:13,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:13,270 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 669 transitions. [2024-11-08 19:05:13,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 19:05:13,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:13,271 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:13,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:05:13,271 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:13,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2052352048, now seen corresponding path program 1 times [2024-11-08 19:05:13,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:13,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124221566] [2024-11-08 19:05:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:13,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:13,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:13,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:13,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124221566] [2024-11-08 19:05:13,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124221566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:13,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:13,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:05:13,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120556752] [2024-11-08 19:05:13,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:13,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:05:13,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:13,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:05:13,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:05:13,521 INFO L87 Difference]: Start difference. First operand 469 states and 669 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:13,589 INFO L93 Difference]: Finished difference Result 626 states and 900 transitions. [2024-11-08 19:05:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:13,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-08 19:05:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:13,591 INFO L225 Difference]: With dead ends: 626 [2024-11-08 19:05:13,591 INFO L226 Difference]: Without dead ends: 344 [2024-11-08 19:05:13,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:05:13,593 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 591 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:13,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 1076 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-08 19:05:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-08 19:05:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.434402332361516) internal successors, (492), 343 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 492 transitions. [2024-11-08 19:05:13,600 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 492 transitions. Word has length 117 [2024-11-08 19:05:13,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:13,600 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 492 transitions. [2024-11-08 19:05:13,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:13,600 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 492 transitions. [2024-11-08 19:05:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-08 19:05:13,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:13,602 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:05:13,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:05:13,602 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:13,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:13,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1807475006, now seen corresponding path program 1 times [2024-11-08 19:05:13,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:13,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317878057] [2024-11-08 19:05:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:13,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 43 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:16,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:16,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317878057] [2024-11-08 19:05:16,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317878057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:16,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445661438] [2024-11-08 19:05:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:16,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:16,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:05:16,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:16,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:05:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:16,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-08 19:05:16,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:17,660 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 33 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:17,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:19,065 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 33 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:19,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445661438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:05:19,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:05:19,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 10] total 30 [2024-11-08 19:05:19,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905006447] [2024-11-08 19:05:19,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:05:19,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 19:05:19,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:19,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 19:05:19,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2024-11-08 19:05:19,069 INFO L87 Difference]: Start difference. First operand 344 states and 492 transitions. Second operand has 30 states, 30 states have (on average 18.1) internal successors, (543), 30 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:21,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:21,928 INFO L93 Difference]: Finished difference Result 1962 states and 2823 transitions. [2024-11-08 19:05:21,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-08 19:05:21,933 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 18.1) internal successors, (543), 30 states have internal predecessors, (543), 0 states have call successors, (0), 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 193 [2024-11-08 19:05:21,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:21,937 INFO L225 Difference]: With dead ends: 1962 [2024-11-08 19:05:21,937 INFO L226 Difference]: Without dead ends: 1805 [2024-11-08 19:05:21,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 371 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1719 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=979, Invalid=6161, Unknown=0, NotChecked=0, Total=7140 [2024-11-08 19:05:21,940 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 8211 mSDsluCounter, 6195 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8211 SdHoareTripleChecker+Valid, 6555 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:21,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8211 Valid, 6555 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 19:05:21,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2024-11-08 19:05:21,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1119. [2024-11-08 19:05:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 1.424865831842576) internal successors, (1593), 1118 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:21,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1593 transitions. [2024-11-08 19:05:21,956 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1593 transitions. Word has length 193 [2024-11-08 19:05:21,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:21,957 INFO L471 AbstractCegarLoop]: Abstraction has 1119 states and 1593 transitions. [2024-11-08 19:05:21,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 18.1) internal successors, (543), 30 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:21,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1593 transitions. [2024-11-08 19:05:21,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-08 19:05:21,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:21,959 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:05:21,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:05:22,163 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,SelfDestructingSolverStorable15 [2024-11-08 19:05:22,165 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:22,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:22,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1044630017, now seen corresponding path program 1 times [2024-11-08 19:05:22,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:22,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180689783] [2024-11-08 19:05:22,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:22,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 31 proven. 53 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 19:05:23,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180689783] [2024-11-08 19:05:23,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180689783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:23,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426340279] [2024-11-08 19:05:23,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:23,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:23,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:05:23,844 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:23,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:05:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:24,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-08 19:05:24,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:25,293 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 31 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:25,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:27,399 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 31 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:27,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426340279] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:05:27,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:05:27,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 15] total 36 [2024-11-08 19:05:27,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969755431] [2024-11-08 19:05:27,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:05:27,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-08 19:05:27,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:27,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-08 19:05:27,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 19:05:27,403 INFO L87 Difference]: Start difference. First operand 1119 states and 1593 transitions. Second operand has 36 states, 36 states have (on average 15.13888888888889) internal successors, (545), 36 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:32,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:32,724 INFO L93 Difference]: Finished difference Result 7305 states and 10494 transitions. [2024-11-08 19:05:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2024-11-08 19:05:32,725 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 15.13888888888889) internal successors, (545), 36 states have internal predecessors, (545), 0 states have call successors, (0), 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 195 [2024-11-08 19:05:32,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:32,742 INFO L225 Difference]: With dead ends: 7305 [2024-11-08 19:05:32,742 INFO L226 Difference]: Without dead ends: 6619 [2024-11-08 19:05:32,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9710 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3150, Invalid=24906, Unknown=0, NotChecked=0, Total=28056 [2024-11-08 19:05:32,750 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 7879 mSDsluCounter, 6983 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7879 SdHoareTripleChecker+Valid, 7332 SdHoareTripleChecker+Invalid, 2347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:32,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7879 Valid, 7332 Invalid, 2347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 19:05:32,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6619 states. [2024-11-08 19:05:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6619 to 4763. [2024-11-08 19:05:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 4762 states have (on average 1.4265014699706007) internal successors, (6793), 4762 states have internal predecessors, (6793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:32,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6793 transitions. [2024-11-08 19:05:32,847 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6793 transitions. Word has length 195 [2024-11-08 19:05:32,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:32,847 INFO L471 AbstractCegarLoop]: Abstraction has 4763 states and 6793 transitions. [2024-11-08 19:05:32,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 15.13888888888889) internal successors, (545), 36 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6793 transitions. [2024-11-08 19:05:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-08 19:05:32,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:32,855 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:05:32,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 19:05:33,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:33,059 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:33,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1288141017, now seen corresponding path program 1 times [2024-11-08 19:05:33,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:33,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305519412] [2024-11-08 19:05:33,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:35,665 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 23 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:35,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:35,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305519412] [2024-11-08 19:05:35,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305519412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:35,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103253416] [2024-11-08 19:05:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:35,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:35,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:05:35,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:35,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:05:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:36,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 139 conjuncts are in the unsatisfiable core [2024-11-08 19:05:36,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 26 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:37,702 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 8 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:39,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103253416] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:05:39,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:05:39,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 21, 22] total 54 [2024-11-08 19:05:39,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116426780] [2024-11-08 19:05:39,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:05:39,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-08 19:05:39,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:39,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-08 19:05:39,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=2427, Unknown=0, NotChecked=0, Total=2862 [2024-11-08 19:05:39,584 INFO L87 Difference]: Start difference. First operand 4763 states and 6793 transitions. Second operand has 54 states, 54 states have (on average 10.666666666666666) internal successors, (576), 54 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:00,330 INFO L93 Difference]: Finished difference Result 20225 states and 29447 transitions. [2024-11-08 19:06:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2024-11-08 19:06:00,330 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 10.666666666666666) internal successors, (576), 54 states have internal predecessors, (576), 0 states have call successors, (0), 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 196 [2024-11-08 19:06:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:00,364 INFO L225 Difference]: With dead ends: 20225 [2024-11-08 19:06:00,365 INFO L226 Difference]: Without dead ends: 17057 [2024-11-08 19:06:00,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 353 SyntacticMatches, 1 SemanticMatches, 368 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55388 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=16253, Invalid=120277, Unknown=0, NotChecked=0, Total=136530 [2024-11-08 19:06:00,389 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 37835 mSDsluCounter, 10011 mSDsCounter, 0 mSdLazyCounter, 4537 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37835 SdHoareTripleChecker+Valid, 10331 SdHoareTripleChecker+Invalid, 4686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 4537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:00,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37835 Valid, 10331 Invalid, 4686 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [149 Valid, 4537 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 19:06:00,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17057 states. [2024-11-08 19:06:00,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17057 to 10701. [2024-11-08 19:06:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10701 states, 10700 states have (on average 1.4457009345794392) internal successors, (15469), 10700 states have internal predecessors, (15469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10701 states to 10701 states and 15469 transitions. [2024-11-08 19:06:00,549 INFO L78 Accepts]: Start accepts. Automaton has 10701 states and 15469 transitions. Word has length 196 [2024-11-08 19:06:00,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:00,550 INFO L471 AbstractCegarLoop]: Abstraction has 10701 states and 15469 transitions. [2024-11-08 19:06:00,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 10.666666666666666) internal successors, (576), 54 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 10701 states and 15469 transitions. [2024-11-08 19:06:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-08 19:06:00,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:00,568 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:06:00,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:06:00,773 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,SelfDestructingSolverStorable17 [2024-11-08 19:06:00,774 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:00,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:00,774 INFO L85 PathProgramCache]: Analyzing trace with hash 29764293, now seen corresponding path program 1 times [2024-11-08 19:06:00,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:00,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576722591] [2024-11-08 19:06:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:00,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 19:06:01,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:01,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576722591] [2024-11-08 19:06:01,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576722591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:01,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:06:01,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:06:01,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258238522] [2024-11-08 19:06:01,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:01,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:06:01,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:06:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:06:01,237 INFO L87 Difference]: Start difference. First operand 10701 states and 15469 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:01,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:01,338 INFO L93 Difference]: Finished difference Result 16452 states and 23920 transitions. [2024-11-08 19:06:01,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:06:01,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 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 198 [2024-11-08 19:06:01,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:01,357 INFO L225 Difference]: With dead ends: 16452 [2024-11-08 19:06:01,358 INFO L226 Difference]: Without dead ends: 10741 [2024-11-08 19:06:01,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:06:01,365 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 2 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:01,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1090 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:06:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10741 states. [2024-11-08 19:06:01,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10741 to 10725. [2024-11-08 19:06:01,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10725 states, 10724 states have (on average 1.445076464005968) internal successors, (15497), 10724 states have internal predecessors, (15497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10725 states to 10725 states and 15497 transitions. [2024-11-08 19:06:01,472 INFO L78 Accepts]: Start accepts. Automaton has 10725 states and 15497 transitions. Word has length 198 [2024-11-08 19:06:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:01,472 INFO L471 AbstractCegarLoop]: Abstraction has 10725 states and 15497 transitions. [2024-11-08 19:06:01,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 10725 states and 15497 transitions. [2024-11-08 19:06:01,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-08 19:06:01,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:01,485 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:06:01,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 19:06:01,485 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:01,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:01,485 INFO L85 PathProgramCache]: Analyzing trace with hash -330543717, now seen corresponding path program 1 times [2024-11-08 19:06:01,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:01,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871352422] [2024-11-08 19:06:01,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:01,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-08 19:06:02,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:02,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871352422] [2024-11-08 19:06:02,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871352422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:02,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:06:02,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:06:02,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037014299] [2024-11-08 19:06:02,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:02,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:06:02,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:02,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:06:02,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:06:02,251 INFO L87 Difference]: Start difference. First operand 10725 states and 15497 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:02,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:02,357 INFO L93 Difference]: Finished difference Result 18981 states and 27518 transitions. [2024-11-08 19:06:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:06:02,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 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 198 [2024-11-08 19:06:02,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:02,379 INFO L225 Difference]: With dead ends: 18981 [2024-11-08 19:06:02,379 INFO L226 Difference]: Without dead ends: 14753 [2024-11-08 19:06:02,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:06:02,389 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 453 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:02,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1646 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:06:02,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14753 states. [2024-11-08 19:06:02,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14753 to 12142. [2024-11-08 19:06:02,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12142 states, 12141 states have (on average 1.4456799275183263) internal successors, (17552), 12141 states have internal predecessors, (17552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:02,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12142 states to 12142 states and 17552 transitions. [2024-11-08 19:06:02,570 INFO L78 Accepts]: Start accepts. Automaton has 12142 states and 17552 transitions. Word has length 198 [2024-11-08 19:06:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:02,570 INFO L471 AbstractCegarLoop]: Abstraction has 12142 states and 17552 transitions. [2024-11-08 19:06:02,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:02,570 INFO L276 IsEmpty]: Start isEmpty. Operand 12142 states and 17552 transitions. [2024-11-08 19:06:02,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-08 19:06:02,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:02,586 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:06:02,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 19:06:02,586 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:02,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:02,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1640455791, now seen corresponding path program 1 times [2024-11-08 19:06:02,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:02,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097854901] [2024-11-08 19:06:02,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:02,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-08 19:06:02,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:02,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097854901] [2024-11-08 19:06:02,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097854901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:02,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:06:02,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:06:02,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605708573] [2024-11-08 19:06:02,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:02,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:06:02,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:02,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:06:02,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:06:02,959 INFO L87 Difference]: Start difference. First operand 12142 states and 17552 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:03,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:03,031 INFO L93 Difference]: Finished difference Result 17716 states and 25754 transitions. [2024-11-08 19:06:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:06:03,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 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 198 [2024-11-08 19:06:03,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:03,045 INFO L225 Difference]: With dead ends: 17716 [2024-11-08 19:06:03,045 INFO L226 Difference]: Without dead ends: 9789 [2024-11-08 19:06:03,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:06:03,054 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 565 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:03,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 813 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:06:03,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9789 states. [2024-11-08 19:06:03,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9789 to 9789. [2024-11-08 19:06:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9789 states, 9788 states have (on average 1.4507560277891296) internal successors, (14200), 9788 states have internal predecessors, (14200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9789 states to 9789 states and 14200 transitions. [2024-11-08 19:06:03,148 INFO L78 Accepts]: Start accepts. Automaton has 9789 states and 14200 transitions. Word has length 198 [2024-11-08 19:06:03,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:03,148 INFO L471 AbstractCegarLoop]: Abstraction has 9789 states and 14200 transitions. [2024-11-08 19:06:03,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 9789 states and 14200 transitions. [2024-11-08 19:06:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-08 19:06:03,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:03,157 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:06:03,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 19:06:03,158 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:03,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:03,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1093581974, now seen corresponding path program 1 times [2024-11-08 19:06:03,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:03,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122425795] [2024-11-08 19:06:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 83 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 19:06:04,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:04,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122425795] [2024-11-08 19:06:04,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122425795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:04,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955285209] [2024-11-08 19:06:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:04,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:04,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:06:04,616 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) [2024-11-08 19:06:04,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:06:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:05,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-08 19:06:05,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:06:05,560 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 46 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:05,560 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:06:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 19:06:05,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955285209] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:05,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:06:05,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7, 13] total 26 [2024-11-08 19:06:05,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539162358] [2024-11-08 19:06:05,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:05,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:06:05,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:06:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650 [2024-11-08 19:06:05,869 INFO L87 Difference]: Start difference. First operand 9789 states and 14200 transitions. Second operand has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:06,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:06,160 INFO L93 Difference]: Finished difference Result 16995 states and 24772 transitions. [2024-11-08 19:06:06,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 19:06:06,160 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 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 199 [2024-11-08 19:06:06,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:06,174 INFO L225 Difference]: With dead ends: 16995 [2024-11-08 19:06:06,175 INFO L226 Difference]: Without dead ends: 10989 [2024-11-08 19:06:06,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2024-11-08 19:06:06,182 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 217 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:06,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 2933 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:06:06,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10989 states. [2024-11-08 19:06:06,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10989 to 10461. [2024-11-08 19:06:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 10460 states have (on average 1.445889101338432) internal successors, (15124), 10460 states have internal predecessors, (15124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:06,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 15124 transitions. [2024-11-08 19:06:06,279 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 15124 transitions. Word has length 199 [2024-11-08 19:06:06,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:06,280 INFO L471 AbstractCegarLoop]: Abstraction has 10461 states and 15124 transitions. [2024-11-08 19:06:06,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:06,280 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 15124 transitions. [2024-11-08 19:06:06,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-08 19:06:06,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:06,287 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:06:06,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 19:06:06,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-08 19:06:06,488 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:06,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1780675846, now seen corresponding path program 1 times [2024-11-08 19:06:06,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:06,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404335694] [2024-11-08 19:06:06,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:06,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:07,740 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 81 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 19:06:07,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:07,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404335694] [2024-11-08 19:06:07,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404335694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:07,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992786755] [2024-11-08 19:06:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:07,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:07,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:06:07,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:06:07,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 19:06:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:08,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-08 19:06:08,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:06:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 53 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:09,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:06:09,654 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 19:06:09,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992786755] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:09,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:06:09,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 17] total 27 [2024-11-08 19:06:09,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099210174] [2024-11-08 19:06:09,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:09,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:06:09,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:09,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:06:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:06:09,659 INFO L87 Difference]: Start difference. First operand 10461 states and 15124 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:09,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:09,851 INFO L93 Difference]: Finished difference Result 33107 states and 48043 transitions. [2024-11-08 19:06:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:06:09,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 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 199 [2024-11-08 19:06:09,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:09,882 INFO L225 Difference]: With dead ends: 33107 [2024-11-08 19:06:09,882 INFO L226 Difference]: Without dead ends: 13877 [2024-11-08 19:06:09,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2024-11-08 19:06:09,914 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 703 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:09,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1151 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:06:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13877 states. [2024-11-08 19:06:10,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13877 to 11579. [2024-11-08 19:06:10,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11579 states, 11578 states have (on average 1.4448954914493004) internal successors, (16729), 11578 states have internal predecessors, (16729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11579 states to 11579 states and 16729 transitions. [2024-11-08 19:06:10,085 INFO L78 Accepts]: Start accepts. Automaton has 11579 states and 16729 transitions. Word has length 199 [2024-11-08 19:06:10,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:10,085 INFO L471 AbstractCegarLoop]: Abstraction has 11579 states and 16729 transitions. [2024-11-08 19:06:10,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:10,085 INFO L276 IsEmpty]: Start isEmpty. Operand 11579 states and 16729 transitions. [2024-11-08 19:06:10,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-08 19:06:10,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:10,093 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:06:10,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 19:06:10,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:10,298 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:10,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1449563644, now seen corresponding path program 1 times [2024-11-08 19:06:10,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:10,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22582403] [2024-11-08 19:06:10,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:10,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 81 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 19:06:11,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:11,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22582403] [2024-11-08 19:06:11,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22582403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:11,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798493953] [2024-11-08 19:06:11,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:11,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:11,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 19:06:11,523 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:06:11,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 19:06:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:12,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 284 conjuncts are in the unsatisfiable core [2024-11-08 19:06:12,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:06:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 63 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:15,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:06:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 19:06:16,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798493953] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:16,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:06:16,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [8, 32] total 57 [2024-11-08 19:06:16,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755702663] [2024-11-08 19:06:16,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:16,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 19:06:16,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:16,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 19:06:16,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=2861, Unknown=0, NotChecked=0, Total=3192 [2024-11-08 19:06:16,817 INFO L87 Difference]: Start difference. First operand 11579 states and 16729 transitions. Second operand has 21 states, 21 states have (on average 8.761904761904763) internal successors, (184), 21 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:20,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:20,510 INFO L93 Difference]: Finished difference Result 66042 states and 96176 transitions. [2024-11-08 19:06:20,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-08 19:06:20,511 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.761904761904763) internal successors, (184), 21 states have internal predecessors, (184), 0 states have call successors, (0), 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 199 [2024-11-08 19:06:20,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:20,568 INFO L225 Difference]: With dead ends: 66042 [2024-11-08 19:06:20,568 INFO L226 Difference]: Without dead ends: 52425 [2024-11-08 19:06:20,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2028 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=848, Invalid=6808, Unknown=0, NotChecked=0, Total=7656 [2024-11-08 19:06:20,592 INFO L432 NwaCegarLoop]: 1088 mSDtfsCounter, 1513 mSDsluCounter, 7206 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 8294 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:20,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 8294 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 19:06:20,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52425 states. [2024-11-08 19:06:20,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52425 to 14826. [2024-11-08 19:06:20,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14826 states, 14825 states have (on average 1.4522765598650929) internal successors, (21530), 14825 states have internal predecessors, (21530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14826 states to 14826 states and 21530 transitions. [2024-11-08 19:06:20,865 INFO L78 Accepts]: Start accepts. Automaton has 14826 states and 21530 transitions. Word has length 199 [2024-11-08 19:06:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:20,866 INFO L471 AbstractCegarLoop]: Abstraction has 14826 states and 21530 transitions. [2024-11-08 19:06:20,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.761904761904763) internal successors, (184), 21 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 14826 states and 21530 transitions. [2024-11-08 19:06:20,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-08 19:06:20,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:20,877 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 19:06:20,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 19:06:21,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:21,078 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:21,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:21,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2108153004, now seen corresponding path program 1 times [2024-11-08 19:06:21,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:21,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76613503] [2024-11-08 19:06:21,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:21,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms