./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label52.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label52.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f8565bc5543801b18fd72f9af86ccf360a9fe950b021c6b04fc8ab7186c8456 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:31:47,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:31:47,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:31:47,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:31:47,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:31:47,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:31:47,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:31:47,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:31:47,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:31:47,919 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:31:47,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:31:47,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:31:47,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:31:47,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:31:47,921 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:31:47,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:31:47,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:31:47,924 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:31:47,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:31:47,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:31:47,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:31:47,926 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:31:47,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:31:47,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:31:47,927 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:31:47,927 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:31:47,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:31:47,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:31:47,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:31:47,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:31:47,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:31:47,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:31:47,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:31:47,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:31:47,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:31:47,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:31:47,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:31:47,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:31:47,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:31:47,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:31:47,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:31:47,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:31:47,934 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f8565bc5543801b18fd72f9af86ccf360a9fe950b021c6b04fc8ab7186c8456 [2024-11-08 11:31:48,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:31:48,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:31:48,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:31:48,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:31:48,197 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:31:48,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label52.c [2024-11-08 11:31:49,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:31:49,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:31:49,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label52.c [2024-11-08 11:31:49,787 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aba9ebed/de52a7838ca84b1faba13183e7a5eb5e/FLAGde0304b67 [2024-11-08 11:31:50,057 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aba9ebed/de52a7838ca84b1faba13183e7a5eb5e [2024-11-08 11:31:50,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:31:50,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:31:50,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:31:50,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:31:50,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:31:50,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:50,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2872cab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50, skipping insertion in model container [2024-11-08 11:31:50,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:50,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:31:50,317 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/eca-rers2012/Problem15_label52.c[4872,4885] [2024-11-08 11:31:50,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:31:50,576 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:31:50,594 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/eca-rers2012/Problem15_label52.c[4872,4885] [2024-11-08 11:31:50,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:31:50,869 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:31:50,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50 WrapperNode [2024-11-08 11:31:50,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:31:50,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:31:50,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:31:50,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:31:50,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:50,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,004 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-11-08 11:31:51,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:31:51,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:31:51,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:31:51,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:31:51,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,047 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,187 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 11:31:51,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:31:51,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:31:51,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:31:51,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:31:51,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (1/1) ... [2024-11-08 11:31:51,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:31:51,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:31:51,336 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 11:31:51,338 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 11:31:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:31:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:31:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:31:51,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:31:51,431 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:31:51,432 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:31:53,145 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-08 11:31:53,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:31:53,172 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:31:53,174 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:31:53,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:31:53 BoogieIcfgContainer [2024-11-08 11:31:53,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:31:53,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:31:53,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:31:53,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:31:53,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:31:50" (1/3) ... [2024-11-08 11:31:53,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d461c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:31:53, skipping insertion in model container [2024-11-08 11:31:53,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:31:50" (2/3) ... [2024-11-08 11:31:53,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d461c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:31:53, skipping insertion in model container [2024-11-08 11:31:53,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:31:53" (3/3) ... [2024-11-08 11:31:53,181 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label52.c [2024-11-08 11:31:53,195 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:31:53,196 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:31:53,269 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:31:53,278 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;@adb62f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:31:53,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:31:53,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states 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 11:31:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 11:31:53,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:31:53,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:31:53,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:31:53,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:31:53,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1453294289, now seen corresponding path program 1 times [2024-11-08 11:31:53,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:31:53,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908391832] [2024-11-08 11:31:53,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:31:53,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:31:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:31:53,618 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 11:31:53,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:31:53,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908391832] [2024-11-08 11:31:53,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908391832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:31:53,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:31:53,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:31:53,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415425594] [2024-11-08 11:31:53,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:31:53,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:31:53,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:31:53,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:31:53,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:31:53,654 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 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 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 11:31:55,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:31:55,232 INFO L93 Difference]: Finished difference Result 1154 states and 2106 transitions. [2024-11-08 11:31:55,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:31:55,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-08 11:31:55,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:31:55,245 INFO L225 Difference]: With dead ends: 1154 [2024-11-08 11:31:55,245 INFO L226 Difference]: Without dead ends: 665 [2024-11-08 11:31:55,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:31:55,251 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 282 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:31:55,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 383 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:31:55,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-08 11:31:55,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2024-11-08 11:31:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.4818731117824773) internal successors, (981), 662 states have internal predecessors, (981), 0 states have call successors, (0), 0 states 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 11:31:55,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 981 transitions. [2024-11-08 11:31:55,314 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 981 transitions. Word has length 39 [2024-11-08 11:31:55,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:31:55,314 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 981 transitions. [2024-11-08 11:31:55,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 11:31:55,314 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 981 transitions. [2024-11-08 11:31:55,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 11:31:55,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:31:55,317 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:55,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:31:55,317 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:31:55,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:31:55,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2072578409, now seen corresponding path program 1 times [2024-11-08 11:31:55,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:31:55,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812803520] [2024-11-08 11:31:55,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:31:55,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:31:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:31:55,609 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:31:55,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:31:55,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812803520] [2024-11-08 11:31:55,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812803520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:31:55,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:31:55,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:31:55,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256366790] [2024-11-08 11:31:55,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:31:55,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:31:55,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:31:55,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:31:55,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:31:55,615 INFO L87 Difference]: Start difference. First operand 663 states and 981 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states 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 11:31:56,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:31:56,647 INFO L93 Difference]: Finished difference Result 1624 states and 2315 transitions. [2024-11-08 11:31:56,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:31:56,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-08 11:31:56,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:31:56,651 INFO L225 Difference]: With dead ends: 1624 [2024-11-08 11:31:56,651 INFO L226 Difference]: Without dead ends: 963 [2024-11-08 11:31:56,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:31:56,653 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:31:56,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 337 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:31:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-08 11:31:56,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2024-11-08 11:31:56,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.362785862785863) internal successors, (1311), 962 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states 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 11:31:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1311 transitions. [2024-11-08 11:31:56,682 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1311 transitions. Word has length 104 [2024-11-08 11:31:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:31:56,682 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1311 transitions. [2024-11-08 11:31:56,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states 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 11:31:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1311 transitions. [2024-11-08 11:31:56,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 11:31:56,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:31:56,685 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:56,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:31:56,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:31:56,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:31:56,685 INFO L85 PathProgramCache]: Analyzing trace with hash 310857094, now seen corresponding path program 1 times [2024-11-08 11:31:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:31:56,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185581800] [2024-11-08 11:31:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:31:56,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:31:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:31:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:31:56,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:31:56,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185581800] [2024-11-08 11:31:56,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185581800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:31:56,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:31:56,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:31:56,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004325656] [2024-11-08 11:31:56,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:31:56,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:31:56,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:31:56,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:31:56,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:31:56,818 INFO L87 Difference]: Start difference. First operand 963 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 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 11:31:58,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:31:58,484 INFO L93 Difference]: Finished difference Result 2229 states and 3186 transitions. [2024-11-08 11:31:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:31:58,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 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 11:31:58,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:31:58,493 INFO L225 Difference]: With dead ends: 2229 [2024-11-08 11:31:58,494 INFO L226 Difference]: Without dead ends: 1567 [2024-11-08 11:31:58,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:31:58,499 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 256 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:31:58,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 318 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:31:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-08 11:31:58,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1266. [2024-11-08 11:31:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.3043478260869565) internal successors, (1650), 1265 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states 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 11:31:58,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1650 transitions. [2024-11-08 11:31:58,521 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1650 transitions. Word has length 109 [2024-11-08 11:31:58,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:31:58,522 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1650 transitions. [2024-11-08 11:31:58,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 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 11:31:58,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1650 transitions. [2024-11-08 11:31:58,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-08 11:31:58,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:31:58,527 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 11:31:58,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:31:58,527 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:31:58,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:31:58,528 INFO L85 PathProgramCache]: Analyzing trace with hash -793515486, now seen corresponding path program 1 times [2024-11-08 11:31:58,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:31:58,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033914742] [2024-11-08 11:31:58,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:31:58,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:31:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:31:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:31:58,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:31:58,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033914742] [2024-11-08 11:31:58,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033914742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:31:58,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:31:58,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:31:58,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930272888] [2024-11-08 11:31:58,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:31:58,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:31:58,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:31:58,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:31:58,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:31:58,711 INFO L87 Difference]: Start difference. First operand 1266 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states 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 11:32:01,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:01,077 INFO L93 Difference]: Finished difference Result 4670 states and 6170 transitions. [2024-11-08 11:32:01,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:32:01,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 205 [2024-11-08 11:32:01,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:01,086 INFO L225 Difference]: With dead ends: 4670 [2024-11-08 11:32:01,087 INFO L226 Difference]: Without dead ends: 3406 [2024-11-08 11:32:01,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:32:01,091 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 486 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:01,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 379 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 11:32:01,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2024-11-08 11:32:01,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3381. [2024-11-08 11:32:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 1.2366863905325445) internal successors, (4180), 3380 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states 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 11:32:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4180 transitions. [2024-11-08 11:32:01,159 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4180 transitions. Word has length 205 [2024-11-08 11:32:01,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:01,160 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4180 transitions. [2024-11-08 11:32:01,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states 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 11:32:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4180 transitions. [2024-11-08 11:32:01,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-08 11:32:01,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:01,166 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:01,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:32:01,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:01,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash -792100692, now seen corresponding path program 1 times [2024-11-08 11:32:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:01,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093973721] [2024-11-08 11:32:01,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:01,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-08 11:32:01,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:01,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093973721] [2024-11-08 11:32:01,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093973721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:01,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:01,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:32:01,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122894650] [2024-11-08 11:32:01,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:01,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:01,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:01,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:01,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:01,321 INFO L87 Difference]: Start difference. First operand 3381 states and 4180 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 11:32:02,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:02,417 INFO L93 Difference]: Finished difference Result 8563 states and 10754 transitions. [2024-11-08 11:32:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:02,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 209 [2024-11-08 11:32:02,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:02,431 INFO L225 Difference]: With dead ends: 8563 [2024-11-08 11:32:02,431 INFO L226 Difference]: Without dead ends: 5483 [2024-11-08 11:32:02,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:02,436 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:02,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 339 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:32:02,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states. [2024-11-08 11:32:02,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 5478. [2024-11-08 11:32:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.16870549570933) internal successors, (6401), 5477 states have internal predecessors, (6401), 0 states have call successors, (0), 0 states 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 11:32:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6401 transitions. [2024-11-08 11:32:02,505 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6401 transitions. Word has length 209 [2024-11-08 11:32:02,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:02,506 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6401 transitions. [2024-11-08 11:32:02,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 11:32:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6401 transitions. [2024-11-08 11:32:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-08 11:32:02,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:02,511 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:02,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:32:02,511 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:02,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:02,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1757201092, now seen corresponding path program 1 times [2024-11-08 11:32:02,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:02,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934284241] [2024-11-08 11:32:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:02,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 11:32:02,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:02,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934284241] [2024-11-08 11:32:02,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934284241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:02,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:02,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:32:02,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74924231] [2024-11-08 11:32:02,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:02,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:02,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:02,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:02,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:02,962 INFO L87 Difference]: Start difference. First operand 5478 states and 6401 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states 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 11:32:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:03,918 INFO L93 Difference]: Finished difference Result 10655 states and 12489 transitions. [2024-11-08 11:32:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:03,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 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 311 [2024-11-08 11:32:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:03,937 INFO L225 Difference]: With dead ends: 10655 [2024-11-08 11:32:03,938 INFO L226 Difference]: Without dead ends: 5478 [2024-11-08 11:32:03,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:03,943 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:03,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 11:32:03,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2024-11-08 11:32:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5478. [2024-11-08 11:32:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1676100054774512) internal successors, (6395), 5477 states have internal predecessors, (6395), 0 states have call successors, (0), 0 states 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 11:32:04,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6395 transitions. [2024-11-08 11:32:04,033 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6395 transitions. Word has length 311 [2024-11-08 11:32:04,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:04,035 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6395 transitions. [2024-11-08 11:32:04,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states 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 11:32:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6395 transitions. [2024-11-08 11:32:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-08 11:32:04,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:04,039 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:04,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:32:04,040 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:04,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1941377461, now seen corresponding path program 1 times [2024-11-08 11:32:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:04,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601899163] [2024-11-08 11:32:04,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:04,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 11:32:04,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:04,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601899163] [2024-11-08 11:32:04,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601899163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:04,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:04,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:04,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698848197] [2024-11-08 11:32:04,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:04,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:04,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:04,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:04,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:04,185 INFO L87 Difference]: Start difference. First operand 5478 states and 6395 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 11:32:05,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:05,418 INFO L93 Difference]: Finished difference Result 11851 states and 14151 transitions. [2024-11-08 11:32:05,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:05,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 326 [2024-11-08 11:32:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:05,434 INFO L225 Difference]: With dead ends: 11851 [2024-11-08 11:32:05,435 INFO L226 Difference]: Without dead ends: 6674 [2024-11-08 11:32:05,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:05,441 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 276 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:05,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 322 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:32:05,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2024-11-08 11:32:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 4876. [2024-11-08 11:32:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4875 states have (on average 1.1805128205128206) internal successors, (5755), 4875 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states 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 11:32:05,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 5755 transitions. [2024-11-08 11:32:05,508 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 5755 transitions. Word has length 326 [2024-11-08 11:32:05,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:05,508 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 5755 transitions. [2024-11-08 11:32:05,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 11:32:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 5755 transitions. [2024-11-08 11:32:05,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-08 11:32:05,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:05,513 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:05,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:32:05,513 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:05,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:05,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1988464242, now seen corresponding path program 1 times [2024-11-08 11:32:05,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:05,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352058547] [2024-11-08 11:32:05,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:05,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 73 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:32:06,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:06,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352058547] [2024-11-08 11:32:06,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352058547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:06,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742374497] [2024-11-08 11:32:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:06,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:06,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:06,283 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 11:32:06,284 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 11:32:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:06,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:32:06,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:32:06,570 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:32:06,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742374497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:06,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:32:06,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-08 11:32:06,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114457033] [2024-11-08 11:32:06,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:06,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:06,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:06,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:06,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:32:06,573 INFO L87 Difference]: Start difference. First operand 4876 states and 5755 transitions. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states 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 11:32:08,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:08,019 INFO L93 Difference]: Finished difference Result 11855 states and 14250 transitions. [2024-11-08 11:32:08,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:08,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 385 [2024-11-08 11:32:08,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:08,040 INFO L225 Difference]: With dead ends: 11855 [2024-11-08 11:32:08,041 INFO L226 Difference]: Without dead ends: 7280 [2024-11-08 11:32:08,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:32:08,047 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 249 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:08,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 345 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:32:08,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7280 states. [2024-11-08 11:32:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7280 to 6679. [2024-11-08 11:32:08,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6679 states, 6678 states have (on average 1.1647199760407307) internal successors, (7778), 6678 states have internal predecessors, (7778), 0 states have call successors, (0), 0 states 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 11:32:08,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 7778 transitions. [2024-11-08 11:32:08,129 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 7778 transitions. Word has length 385 [2024-11-08 11:32:08,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:08,130 INFO L471 AbstractCegarLoop]: Abstraction has 6679 states and 7778 transitions. [2024-11-08 11:32:08,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states 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 11:32:08,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 7778 transitions. [2024-11-08 11:32:08,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-08 11:32:08,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:08,139 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:08,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 11:32:08,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:08,343 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:08,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:08,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1876663847, now seen corresponding path program 1 times [2024-11-08 11:32:08,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:08,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079022970] [2024-11-08 11:32:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:08,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 275 proven. 39 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 11:32:08,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:08,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079022970] [2024-11-08 11:32:08,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079022970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:08,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131722522] [2024-11-08 11:32:08,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:08,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:08,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:08,699 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 11:32:08,701 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 11:32:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:08,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 11:32:08,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:09,470 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 275 proven. 39 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 11:32:09,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:32:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 275 proven. 39 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 11:32:10,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131722522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 11:32:10,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 11:32:10,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-08 11:32:10,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670321658] [2024-11-08 11:32:10,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 11:32:10,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 11:32:10,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 11:32:10,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:32:10,104 INFO L87 Difference]: Start difference. First operand 6679 states and 7778 transitions. Second operand has 9 states, 9 states have (on average 72.66666666666667) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:14,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:14,612 INFO L93 Difference]: Finished difference Result 19597 states and 22611 transitions. [2024-11-08 11:32:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 11:32:14,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 72.66666666666667) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2024-11-08 11:32:14,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:14,624 INFO L225 Difference]: With dead ends: 19597 [2024-11-08 11:32:14,625 INFO L226 Difference]: Without dead ends: 7876 [2024-11-08 11:32:14,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 799 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-08 11:32:14,632 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 2851 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5930 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2851 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 6635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 5930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:14,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2851 Valid, 256 Invalid, 6635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [705 Valid, 5930 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 11:32:14,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7876 states. [2024-11-08 11:32:14,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7876 to 6976. [2024-11-08 11:32:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6976 states, 6975 states have (on average 1.1105376344086022) internal successors, (7746), 6975 states have internal predecessors, (7746), 0 states have call successors, (0), 0 states 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 11:32:14,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6976 states to 6976 states and 7746 transitions. [2024-11-08 11:32:14,717 INFO L78 Accepts]: Start accepts. Automaton has 6976 states and 7746 transitions. Word has length 402 [2024-11-08 11:32:14,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:14,717 INFO L471 AbstractCegarLoop]: Abstraction has 6976 states and 7746 transitions. [2024-11-08 11:32:14,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.66666666666667) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:14,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6976 states and 7746 transitions. [2024-11-08 11:32:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-08 11:32:14,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:14,721 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:14,737 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 11:32:14,921 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,SelfDestructingSolverStorable8 [2024-11-08 11:32:14,922 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:14,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash 429176728, now seen corresponding path program 1 times [2024-11-08 11:32:14,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:14,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991179466] [2024-11-08 11:32:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:14,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-08 11:32:15,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:15,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991179466] [2024-11-08 11:32:15,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991179466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:15,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:15,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:15,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217150743] [2024-11-08 11:32:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:15,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:15,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:15,195 INFO L87 Difference]: Start difference. First operand 6976 states and 7746 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 11:32:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:16,100 INFO L93 Difference]: Finished difference Result 15446 states and 17263 transitions. [2024-11-08 11:32:16,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:16,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 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 416 [2024-11-08 11:32:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:16,110 INFO L225 Difference]: With dead ends: 15446 [2024-11-08 11:32:16,111 INFO L226 Difference]: Without dead ends: 8472 [2024-11-08 11:32:16,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:16,117 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 287 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:16,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 554 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 11:32:16,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8472 states. [2024-11-08 11:32:16,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8472 to 8171. [2024-11-08 11:32:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8171 states, 8170 states have (on average 1.088984088127295) internal successors, (8897), 8170 states have internal predecessors, (8897), 0 states have call successors, (0), 0 states 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 11:32:16,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8171 states to 8171 states and 8897 transitions. [2024-11-08 11:32:16,186 INFO L78 Accepts]: Start accepts. Automaton has 8171 states and 8897 transitions. Word has length 416 [2024-11-08 11:32:16,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:16,186 INFO L471 AbstractCegarLoop]: Abstraction has 8171 states and 8897 transitions. [2024-11-08 11:32:16,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 11:32:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 8171 states and 8897 transitions. [2024-11-08 11:32:16,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-08 11:32:16,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:16,189 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:16,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:32:16,189 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:16,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:16,189 INFO L85 PathProgramCache]: Analyzing trace with hash 806528277, now seen corresponding path program 1 times [2024-11-08 11:32:16,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:16,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138270567] [2024-11-08 11:32:16,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:16,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:16,531 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-08 11:32:16,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:16,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138270567] [2024-11-08 11:32:16,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138270567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:16,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:16,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:16,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219430448] [2024-11-08 11:32:16,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:16,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:16,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:16,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:16,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:16,534 INFO L87 Difference]: Start difference. First operand 8171 states and 8897 transitions. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states 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 11:32:17,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:17,281 INFO L93 Difference]: Finished difference Result 18736 states and 20446 transitions. [2024-11-08 11:32:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:17,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 513 [2024-11-08 11:32:17,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:17,296 INFO L225 Difference]: With dead ends: 18736 [2024-11-08 11:32:17,296 INFO L226 Difference]: Without dead ends: 10567 [2024-11-08 11:32:17,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:17,304 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 244 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:17,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 512 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:17,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10567 states. [2024-11-08 11:32:17,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10567 to 10567. [2024-11-08 11:32:17,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10567 states, 10566 states have (on average 1.0712663259511641) internal successors, (11319), 10566 states have internal predecessors, (11319), 0 states have call successors, (0), 0 states 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 11:32:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10567 states to 10567 states and 11319 transitions. [2024-11-08 11:32:17,402 INFO L78 Accepts]: Start accepts. Automaton has 10567 states and 11319 transitions. Word has length 513 [2024-11-08 11:32:17,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:17,403 INFO L471 AbstractCegarLoop]: Abstraction has 10567 states and 11319 transitions. [2024-11-08 11:32:17,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states 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 11:32:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand 10567 states and 11319 transitions. [2024-11-08 11:32:17,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-11-08 11:32:17,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:17,407 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:17,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:32:17,409 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:17,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:17,409 INFO L85 PathProgramCache]: Analyzing trace with hash -828305129, now seen corresponding path program 1 times [2024-11-08 11:32:17,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:17,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212234456] [2024-11-08 11:32:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:17,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-08 11:32:17,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:17,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212234456] [2024-11-08 11:32:17,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212234456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:17,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:17,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:17,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93850903] [2024-11-08 11:32:17,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:17,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:17,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:17,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:17,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:17,742 INFO L87 Difference]: Start difference. First operand 10567 states and 11319 transitions. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states 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 11:32:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:18,513 INFO L93 Difference]: Finished difference Result 25617 states and 27608 transitions. [2024-11-08 11:32:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:18,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 540 [2024-11-08 11:32:18,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:18,531 INFO L225 Difference]: With dead ends: 25617 [2024-11-08 11:32:18,531 INFO L226 Difference]: Without dead ends: 15351 [2024-11-08 11:32:18,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:18,541 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 248 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:18,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 128 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15351 states. [2024-11-08 11:32:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15351 to 14454. [2024-11-08 11:32:18,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14454 states, 14453 states have (on average 1.0723725178163703) internal successors, (15499), 14453 states have internal predecessors, (15499), 0 states have call successors, (0), 0 states 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 11:32:18,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14454 states to 14454 states and 15499 transitions. [2024-11-08 11:32:18,683 INFO L78 Accepts]: Start accepts. Automaton has 14454 states and 15499 transitions. Word has length 540 [2024-11-08 11:32:18,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:18,683 INFO L471 AbstractCegarLoop]: Abstraction has 14454 states and 15499 transitions. [2024-11-08 11:32:18,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states 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 11:32:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14454 states and 15499 transitions. [2024-11-08 11:32:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-08 11:32:18,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:18,688 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:18,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 11:32:18,689 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:18,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:18,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1301515125, now seen corresponding path program 1 times [2024-11-08 11:32:18,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:18,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661468298] [2024-11-08 11:32:18,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:18,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:19,635 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 445 proven. 119 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-08 11:32:19,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:19,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661468298] [2024-11-08 11:32:19,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661468298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:19,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839110342] [2024-11-08 11:32:19,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:19,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:19,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:19,638 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 11:32:19,662 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 11:32:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:19,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 11:32:19,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:20,257 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 445 proven. 150 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-08 11:32:20,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:32:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2024-11-08 11:32:20,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839110342] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:20,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:32:20,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2024-11-08 11:32:20,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208511829] [2024-11-08 11:32:20,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:20,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:20,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:20,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:32:20,624 INFO L87 Difference]: Start difference. First operand 14454 states and 15499 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 11:32:21,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:21,495 INFO L93 Difference]: Finished difference Result 33699 states and 36198 transitions. [2024-11-08 11:32:21,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:21,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 685 [2024-11-08 11:32:21,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:21,512 INFO L225 Difference]: With dead ends: 33699 [2024-11-08 11:32:21,512 INFO L226 Difference]: Without dead ends: 19247 [2024-11-08 11:32:21,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1373 GetRequests, 1366 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:32:21,524 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 306 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:21,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 431 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 11:32:21,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19247 states. [2024-11-08 11:32:21,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19247 to 18041. [2024-11-08 11:32:21,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18041 states, 18040 states have (on average 1.0663525498891353) internal successors, (19237), 18040 states have internal predecessors, (19237), 0 states have call successors, (0), 0 states 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 11:32:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18041 states to 18041 states and 19237 transitions. [2024-11-08 11:32:21,679 INFO L78 Accepts]: Start accepts. Automaton has 18041 states and 19237 transitions. Word has length 685 [2024-11-08 11:32:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:21,679 INFO L471 AbstractCegarLoop]: Abstraction has 18041 states and 19237 transitions. [2024-11-08 11:32:21,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 11:32:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 18041 states and 19237 transitions. [2024-11-08 11:32:21,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-08 11:32:21,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:21,684 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 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 11:32:21,698 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 11:32:21,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:21,885 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:21,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:21,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1831700796, now seen corresponding path program 1 times [2024-11-08 11:32:21,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:21,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742585836] [2024-11-08 11:32:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:21,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:22,908 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 547 proven. 74 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-08 11:32:22,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:22,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742585836] [2024-11-08 11:32:22,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742585836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:22,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784999503] [2024-11-08 11:32:22,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:22,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:22,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:22,911 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 11:32:22,912 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 11:32:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:23,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 11:32:23,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 545 proven. 76 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-08 11:32:23,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:32:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-08 11:32:24,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784999503] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:24,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:32:24,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4] total 8 [2024-11-08 11:32:24,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497623877] [2024-11-08 11:32:24,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:24,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:24,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:24,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:24,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:32:24,172 INFO L87 Difference]: Start difference. First operand 18041 states and 19237 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states 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 11:32:24,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:24,987 INFO L93 Difference]: Finished difference Result 39674 states and 42398 transitions. [2024-11-08 11:32:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:24,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 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 698 [2024-11-08 11:32:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:25,008 INFO L225 Difference]: With dead ends: 39674 [2024-11-08 11:32:25,008 INFO L226 Difference]: Without dead ends: 21635 [2024-11-08 11:32:25,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1400 GetRequests, 1394 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:32:25,021 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 227 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:25,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 88 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:25,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21635 states. [2024-11-08 11:32:25,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21635 to 20733. [2024-11-08 11:32:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20733 states, 20732 states have (on average 1.0679625699401891) internal successors, (22141), 20732 states have internal predecessors, (22141), 0 states have call successors, (0), 0 states 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 11:32:25,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20733 states to 20733 states and 22141 transitions. [2024-11-08 11:32:25,197 INFO L78 Accepts]: Start accepts. Automaton has 20733 states and 22141 transitions. Word has length 698 [2024-11-08 11:32:25,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:25,197 INFO L471 AbstractCegarLoop]: Abstraction has 20733 states and 22141 transitions. [2024-11-08 11:32:25,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states 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 11:32:25,198 INFO L276 IsEmpty]: Start isEmpty. Operand 20733 states and 22141 transitions. [2024-11-08 11:32:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2024-11-08 11:32:25,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:25,204 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:25,217 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 11:32:25,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:25,405 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:25,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash -554604450, now seen corresponding path program 1 times [2024-11-08 11:32:25,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:25,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299449427] [2024-11-08 11:32:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2024-11-08 11:32:25,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:25,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299449427] [2024-11-08 11:32:25,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299449427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:25,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:25,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:25,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198530541] [2024-11-08 11:32:25,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:25,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:25,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:25,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:25,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:25,874 INFO L87 Difference]: Start difference. First operand 20733 states and 22141 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 11:32:26,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:26,558 INFO L93 Difference]: Finished difference Result 43565 states and 46452 transitions. [2024-11-08 11:32:26,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:26,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 710 [2024-11-08 11:32:26,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:26,578 INFO L225 Difference]: With dead ends: 43565 [2024-11-08 11:32:26,578 INFO L226 Difference]: Without dead ends: 22834 [2024-11-08 11:32:26,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:26,592 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 270 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:26,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 520 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:32:26,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22834 states. [2024-11-08 11:32:26,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22834 to 21635. [2024-11-08 11:32:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21635 states, 21634 states have (on average 1.0658223167236758) internal successors, (23058), 21634 states have internal predecessors, (23058), 0 states have call successors, (0), 0 states 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 11:32:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21635 states to 21635 states and 23058 transitions. [2024-11-08 11:32:26,883 INFO L78 Accepts]: Start accepts. Automaton has 21635 states and 23058 transitions. Word has length 710 [2024-11-08 11:32:26,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:26,884 INFO L471 AbstractCegarLoop]: Abstraction has 21635 states and 23058 transitions. [2024-11-08 11:32:26,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 11:32:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 21635 states and 23058 transitions. [2024-11-08 11:32:26,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-08 11:32:26,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:26,895 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:26,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:32:26,895 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:26,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:26,895 INFO L85 PathProgramCache]: Analyzing trace with hash 355388179, now seen corresponding path program 1 times [2024-11-08 11:32:26,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:26,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932597390] [2024-11-08 11:32:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:26,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 522 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-08 11:32:27,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:27,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932597390] [2024-11-08 11:32:27,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932597390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:27,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:27,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389404562] [2024-11-08 11:32:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:27,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:27,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:27,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:27,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:27,625 INFO L87 Difference]: Start difference. First operand 21635 states and 23058 transitions. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states 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 11:32:28,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:28,277 INFO L93 Difference]: Finished difference Result 42971 states and 45817 transitions. [2024-11-08 11:32:28,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:28,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 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 724 [2024-11-08 11:32:28,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:28,297 INFO L225 Difference]: With dead ends: 42971 [2024-11-08 11:32:28,298 INFO L226 Difference]: Without dead ends: 21637 [2024-11-08 11:32:28,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:28,313 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 227 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:28,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 112 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:32:28,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21637 states. [2024-11-08 11:32:28,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21637 to 21635. [2024-11-08 11:32:28,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21635 states, 21634 states have (on average 1.0613386336322455) internal successors, (22961), 21634 states have internal predecessors, (22961), 0 states have call successors, (0), 0 states 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 11:32:28,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21635 states to 21635 states and 22961 transitions. [2024-11-08 11:32:28,491 INFO L78 Accepts]: Start accepts. Automaton has 21635 states and 22961 transitions. Word has length 724 [2024-11-08 11:32:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:28,492 INFO L471 AbstractCegarLoop]: Abstraction has 21635 states and 22961 transitions. [2024-11-08 11:32:28,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states 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 11:32:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 21635 states and 22961 transitions. [2024-11-08 11:32:28,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-08 11:32:28,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:28,497 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:28,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 11:32:28,498 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:28,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:28,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1481633791, now seen corresponding path program 1 times [2024-11-08 11:32:28,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:28,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421867945] [2024-11-08 11:32:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:28,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:29,305 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 531 proven. 188 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-08 11:32:29,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:29,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421867945] [2024-11-08 11:32:29,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421867945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:29,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582591685] [2024-11-08 11:32:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:29,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:29,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:29,307 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 11:32:29,308 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 11:32:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:29,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 11:32:29,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:29,665 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 526 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-08 11:32:29,665 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:32:29,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582591685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:29,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:32:29,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-08 11:32:29,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913039588] [2024-11-08 11:32:29,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:29,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:32:29,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:29,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:32:29,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:32:29,667 INFO L87 Difference]: Start difference. First operand 21635 states and 22961 transitions. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states 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 11:32:30,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:30,894 INFO L93 Difference]: Finished difference Result 50467 states and 53509 transitions. [2024-11-08 11:32:30,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:32:30,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 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 730 [2024-11-08 11:32:30,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:30,919 INFO L225 Difference]: With dead ends: 50467 [2024-11-08 11:32:30,919 INFO L226 Difference]: Without dead ends: 29133 [2024-11-08 11:32:30,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 728 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:32:30,932 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 518 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:30,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 132 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:32:30,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29133 states. [2024-11-08 11:32:31,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29133 to 27635. [2024-11-08 11:32:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27635 states, 27634 states have (on average 1.0581529999276253) internal successors, (29241), 27634 states have internal predecessors, (29241), 0 states have call successors, (0), 0 states 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 11:32:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27635 states to 27635 states and 29241 transitions. [2024-11-08 11:32:31,144 INFO L78 Accepts]: Start accepts. Automaton has 27635 states and 29241 transitions. Word has length 730 [2024-11-08 11:32:31,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:31,145 INFO L471 AbstractCegarLoop]: Abstraction has 27635 states and 29241 transitions. [2024-11-08 11:32:31,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states 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 11:32:31,145 INFO L276 IsEmpty]: Start isEmpty. Operand 27635 states and 29241 transitions. [2024-11-08 11:32:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-11-08 11:32:31,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:31,153 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:31,166 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 11:32:31,353 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,SelfDestructingSolverStorable16 [2024-11-08 11:32:31,354 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:31,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:31,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1728396145, now seen corresponding path program 1 times [2024-11-08 11:32:31,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:31,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357991464] [2024-11-08 11:32:31,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:31,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:31,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2024-11-08 11:32:31,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:31,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357991464] [2024-11-08 11:32:31,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357991464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:31,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:31,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:31,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859438499] [2024-11-08 11:32:31,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:31,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:31,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:31,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:31,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:31,884 INFO L87 Difference]: Start difference. First operand 27635 states and 29241 transitions. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states 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 11:32:32,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:32,734 INFO L93 Difference]: Finished difference Result 55863 states and 59109 transitions. [2024-11-08 11:32:32,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:32,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 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 787 [2024-11-08 11:32:32,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:32,764 INFO L225 Difference]: With dead ends: 55863 [2024-11-08 11:32:32,764 INFO L226 Difference]: Without dead ends: 28529 [2024-11-08 11:32:32,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:32,783 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 225 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:32,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 463 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28529 states. [2024-11-08 11:32:33,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28529 to 25228. [2024-11-08 11:32:33,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25228 states, 25227 states have (on average 1.0556942957941888) internal successors, (26632), 25227 states have internal predecessors, (26632), 0 states have call successors, (0), 0 states 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 11:32:33,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25228 states to 25228 states and 26632 transitions. [2024-11-08 11:32:33,129 INFO L78 Accepts]: Start accepts. Automaton has 25228 states and 26632 transitions. Word has length 787 [2024-11-08 11:32:33,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:33,130 INFO L471 AbstractCegarLoop]: Abstraction has 25228 states and 26632 transitions. [2024-11-08 11:32:33,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states 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 11:32:33,130 INFO L276 IsEmpty]: Start isEmpty. Operand 25228 states and 26632 transitions. [2024-11-08 11:32:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 863 [2024-11-08 11:32:33,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:33,148 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:33,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 11:32:33,148 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:33,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:33,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1130659826, now seen corresponding path program 1 times [2024-11-08 11:32:33,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:33,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203227531] [2024-11-08 11:32:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:33,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:33,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1186 backedges. 961 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-08 11:32:33,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:33,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203227531] [2024-11-08 11:32:33,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203227531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:33,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:33,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:33,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635139034] [2024-11-08 11:32:33,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:33,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:33,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:33,591 INFO L87 Difference]: Start difference. First operand 25228 states and 26632 transitions. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:34,305 INFO L93 Difference]: Finished difference Result 50451 states and 53352 transitions. [2024-11-08 11:32:34,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:34,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 862 [2024-11-08 11:32:34,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:34,329 INFO L225 Difference]: With dead ends: 50451 [2024-11-08 11:32:34,330 INFO L226 Difference]: Without dead ends: 25524 [2024-11-08 11:32:34,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:34,345 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 108 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:34,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 513 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:32:34,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25524 states. [2024-11-08 11:32:34,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25524 to 24324. [2024-11-08 11:32:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24324 states, 24323 states have (on average 1.0441146240184187) internal successors, (25396), 24323 states have internal predecessors, (25396), 0 states have call successors, (0), 0 states 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 11:32:34,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24324 states to 24324 states and 25396 transitions. [2024-11-08 11:32:34,621 INFO L78 Accepts]: Start accepts. Automaton has 24324 states and 25396 transitions. Word has length 862 [2024-11-08 11:32:34,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:34,622 INFO L471 AbstractCegarLoop]: Abstraction has 24324 states and 25396 transitions. [2024-11-08 11:32:34,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:34,622 INFO L276 IsEmpty]: Start isEmpty. Operand 24324 states and 25396 transitions. [2024-11-08 11:32:34,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 929 [2024-11-08 11:32:34,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:34,634 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:34,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 11:32:34,635 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:34,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash 265207444, now seen corresponding path program 1 times [2024-11-08 11:32:34,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:34,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840318369] [2024-11-08 11:32:34,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:34,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:35,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 612 proven. 608 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-08 11:32:35,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:35,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840318369] [2024-11-08 11:32:35,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840318369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:35,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754608558] [2024-11-08 11:32:35,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:35,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:35,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:35,641 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 11:32:35,642 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 11:32:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:35,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:32:35,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:35,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 729 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2024-11-08 11:32:35,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:32:35,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754608558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:35,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:32:35,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-08 11:32:35,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131457290] [2024-11-08 11:32:35,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:35,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:35,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:35,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:35,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:32:35,996 INFO L87 Difference]: Start difference. First operand 24324 states and 25396 transitions. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:36,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:36,722 INFO L93 Difference]: Finished difference Result 48047 states and 50171 transitions. [2024-11-08 11:32:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:36,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 928 [2024-11-08 11:32:36,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:36,745 INFO L225 Difference]: With dead ends: 48047 [2024-11-08 11:32:36,745 INFO L226 Difference]: Without dead ends: 24024 [2024-11-08 11:32:36,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:32:36,760 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 207 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:36,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 503 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:32:36,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24024 states. [2024-11-08 11:32:36,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24024 to 24024. [2024-11-08 11:32:36,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24024 states, 24023 states have (on average 1.0306789326895058) internal successors, (24760), 24023 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states 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 11:32:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24024 states to 24024 states and 24760 transitions. [2024-11-08 11:32:36,973 INFO L78 Accepts]: Start accepts. Automaton has 24024 states and 24760 transitions. Word has length 928 [2024-11-08 11:32:36,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:36,973 INFO L471 AbstractCegarLoop]: Abstraction has 24024 states and 24760 transitions. [2024-11-08 11:32:36,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:36,973 INFO L276 IsEmpty]: Start isEmpty. Operand 24024 states and 24760 transitions. [2024-11-08 11:32:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 948 [2024-11-08 11:32:36,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:36,986 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 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] [2024-11-08 11:32:36,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 11:32:37,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:37,187 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:37,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:37,187 INFO L85 PathProgramCache]: Analyzing trace with hash -13257665, now seen corresponding path program 1 times [2024-11-08 11:32:37,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:37,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030327084] [2024-11-08 11:32:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:37,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1555 backedges. 953 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2024-11-08 11:32:37,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:37,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030327084] [2024-11-08 11:32:37,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030327084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:37,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:37,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:32:37,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179285309] [2024-11-08 11:32:37,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:37,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:32:37,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:37,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:32:37,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:32:37,908 INFO L87 Difference]: Start difference. First operand 24024 states and 24760 transitions. Second operand has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 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 11:32:39,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:39,151 INFO L93 Difference]: Finished difference Result 28824 states and 29672 transitions. [2024-11-08 11:32:39,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:32:39,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 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) Word has length 947 [2024-11-08 11:32:39,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:39,184 INFO L225 Difference]: With dead ends: 28824 [2024-11-08 11:32:39,184 INFO L226 Difference]: Without dead ends: 28822 [2024-11-08 11:32:39,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:32:39,192 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 508 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:39,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 132 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:32:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28822 states. [2024-11-08 11:32:39,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28822 to 22225. [2024-11-08 11:32:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22225 states, 22224 states have (on average 1.031272498200144) internal successors, (22919), 22224 states have internal predecessors, (22919), 0 states have call successors, (0), 0 states 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 11:32:39,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22225 states to 22225 states and 22919 transitions. [2024-11-08 11:32:39,399 INFO L78 Accepts]: Start accepts. Automaton has 22225 states and 22919 transitions. Word has length 947 [2024-11-08 11:32:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:39,400 INFO L471 AbstractCegarLoop]: Abstraction has 22225 states and 22919 transitions. [2024-11-08 11:32:39,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 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 11:32:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 22225 states and 22919 transitions. [2024-11-08 11:32:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 949 [2024-11-08 11:32:39,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:39,410 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:39,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 11:32:39,410 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:39,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:39,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1379876432, now seen corresponding path program 1 times [2024-11-08 11:32:39,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:39,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163069375] [2024-11-08 11:32:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:39,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 596 proven. 0 refuted. 0 times theorem prover too weak. 696 trivial. 0 not checked. [2024-11-08 11:32:40,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:40,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163069375] [2024-11-08 11:32:40,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163069375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:40,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:40,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:40,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106428801] [2024-11-08 11:32:40,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:40,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:40,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:40,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:40,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:40,205 INFO L87 Difference]: Start difference. First operand 22225 states and 22919 transitions. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 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 11:32:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:41,021 INFO L93 Difference]: Finished difference Result 49245 states and 50792 transitions. [2024-11-08 11:32:41,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:41,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 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) Word has length 948 [2024-11-08 11:32:41,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:41,051 INFO L225 Difference]: With dead ends: 49245 [2024-11-08 11:32:41,051 INFO L226 Difference]: Without dead ends: 27321 [2024-11-08 11:32:41,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:41,069 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 171 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:41,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 505 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:41,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27321 states. [2024-11-08 11:32:41,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27321 to 25814. [2024-11-08 11:32:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25814 states, 25813 states have (on average 1.030023631503506) internal successors, (26588), 25813 states have internal predecessors, (26588), 0 states have call successors, (0), 0 states 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 11:32:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25814 states to 25814 states and 26588 transitions. [2024-11-08 11:32:41,354 INFO L78 Accepts]: Start accepts. Automaton has 25814 states and 26588 transitions. Word has length 948 [2024-11-08 11:32:41,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:41,355 INFO L471 AbstractCegarLoop]: Abstraction has 25814 states and 26588 transitions. [2024-11-08 11:32:41,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 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 11:32:41,355 INFO L276 IsEmpty]: Start isEmpty. Operand 25814 states and 26588 transitions. [2024-11-08 11:32:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2024-11-08 11:32:41,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:41,368 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:41,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 11:32:41,369 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:41,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:41,369 INFO L85 PathProgramCache]: Analyzing trace with hash 520105551, now seen corresponding path program 1 times [2024-11-08 11:32:41,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:41,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493067737] [2024-11-08 11:32:41,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:41,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 1237 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2024-11-08 11:32:41,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:41,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493067737] [2024-11-08 11:32:41,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493067737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:41,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:41,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:41,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87541935] [2024-11-08 11:32:41,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:41,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:41,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:41,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:41,898 INFO L87 Difference]: Start difference. First operand 25814 states and 26588 transitions. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states 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 11:32:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:42,723 INFO L93 Difference]: Finished difference Result 55832 states and 57492 transitions. [2024-11-08 11:32:42,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:42,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 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 1032 [2024-11-08 11:32:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:42,752 INFO L225 Difference]: With dead ends: 55832 [2024-11-08 11:32:42,752 INFO L226 Difference]: Without dead ends: 30319 [2024-11-08 11:32:42,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:42,767 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 132 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:42,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 136 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:42,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30319 states. [2024-11-08 11:32:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30319 to 27309. [2024-11-08 11:32:42,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27309 states, 27308 states have (on average 1.0286362970558078) internal successors, (28090), 27308 states have internal predecessors, (28090), 0 states have call successors, (0), 0 states 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 11:32:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27309 states to 27309 states and 28090 transitions. [2024-11-08 11:32:43,017 INFO L78 Accepts]: Start accepts. Automaton has 27309 states and 28090 transitions. Word has length 1032 [2024-11-08 11:32:43,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:43,017 INFO L471 AbstractCegarLoop]: Abstraction has 27309 states and 28090 transitions. [2024-11-08 11:32:43,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states 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 11:32:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 27309 states and 28090 transitions. [2024-11-08 11:32:43,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2024-11-08 11:32:43,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:43,032 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:43,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 11:32:43,032 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:43,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:43,033 INFO L85 PathProgramCache]: Analyzing trace with hash 690598981, now seen corresponding path program 1 times [2024-11-08 11:32:43,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:43,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183377954] [2024-11-08 11:32:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:43,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2334 backedges. 74 proven. 1081 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-08 11:32:44,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:44,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183377954] [2024-11-08 11:32:44,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183377954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:44,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553927035] [2024-11-08 11:32:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:44,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:44,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:44,219 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 11:32:44,220 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 11:32:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:44,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 11:32:44,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2334 backedges. 720 proven. 519 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-11-08 11:32:46,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:32:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2334 backedges. 74 proven. 1081 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-08 11:32:49,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553927035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 11:32:49,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 11:32:49,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 10 [2024-11-08 11:32:49,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700226962] [2024-11-08 11:32:49,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 11:32:49,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 11:32:49,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:49,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 11:32:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 11:32:49,411 INFO L87 Difference]: Start difference. First operand 27309 states and 28090 transitions. Second operand has 11 states, 11 states have (on average 109.0) internal successors, (1199), 10 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states 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 11:32:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:52,914 INFO L93 Difference]: Finished difference Result 71999 states and 73996 transitions. [2024-11-08 11:32:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 11:32:52,915 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 109.0) internal successors, (1199), 10 states have internal predecessors, (1199), 0 states have call successors, (0), 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 1117 [2024-11-08 11:32:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:52,960 INFO L225 Difference]: With dead ends: 71999 [2024-11-08 11:32:52,960 INFO L226 Difference]: Without dead ends: 44991 [2024-11-08 11:32:52,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2243 GetRequests, 2227 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2024-11-08 11:32:52,980 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 2861 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 4127 mSolverCounterSat, 670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 4797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 670 IncrementalHoareTripleChecker+Valid, 4127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:52,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 209 Invalid, 4797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [670 Valid, 4127 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 11:32:53,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44991 states. [2024-11-08 11:32:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44991 to 31500. [2024-11-08 11:32:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31500 states, 31499 states have (on average 1.0252071494333153) internal successors, (32293), 31499 states have internal predecessors, (32293), 0 states have call successors, (0), 0 states 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 11:32:53,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31500 states to 31500 states and 32293 transitions. [2024-11-08 11:32:53,337 INFO L78 Accepts]: Start accepts. Automaton has 31500 states and 32293 transitions. Word has length 1117 [2024-11-08 11:32:53,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:53,338 INFO L471 AbstractCegarLoop]: Abstraction has 31500 states and 32293 transitions. [2024-11-08 11:32:53,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.0) internal successors, (1199), 10 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states 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 11:32:53,338 INFO L276 IsEmpty]: Start isEmpty. Operand 31500 states and 32293 transitions. [2024-11-08 11:32:53,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1355 [2024-11-08 11:32:53,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:53,359 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:53,372 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 11:32:53,559 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 11:32:53,560 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:53,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:53,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1441697185, now seen corresponding path program 1 times [2024-11-08 11:32:53,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:53,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398876582] [2024-11-08 11:32:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:53,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 1816 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2024-11-08 11:32:54,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:54,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398876582] [2024-11-08 11:32:54,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398876582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:54,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:54,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:54,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584628487] [2024-11-08 11:32:54,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:54,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:54,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:54,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:54,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:54,313 INFO L87 Difference]: Start difference. First operand 31500 states and 32293 transitions. Second operand has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:55,089 INFO L93 Difference]: Finished difference Result 63612 states and 65211 transitions. [2024-11-08 11:32:55,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:55,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1354 [2024-11-08 11:32:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:55,124 INFO L225 Difference]: With dead ends: 63612 [2024-11-08 11:32:55,124 INFO L226 Difference]: Without dead ends: 36001 [2024-11-08 11:32:55,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:55,143 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 345 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:55,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 119 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:32:55,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36001 states. [2024-11-08 11:32:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36001 to 30601. [2024-11-08 11:32:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30601 states, 30600 states have (on average 1.0251307189542485) internal successors, (31369), 30600 states have internal predecessors, (31369), 0 states have call successors, (0), 0 states 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 11:32:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30601 states to 30601 states and 31369 transitions. [2024-11-08 11:32:55,450 INFO L78 Accepts]: Start accepts. Automaton has 30601 states and 31369 transitions. Word has length 1354 [2024-11-08 11:32:55,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:55,450 INFO L471 AbstractCegarLoop]: Abstraction has 30601 states and 31369 transitions. [2024-11-08 11:32:55,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:55,451 INFO L276 IsEmpty]: Start isEmpty. Operand 30601 states and 31369 transitions. [2024-11-08 11:32:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1368 [2024-11-08 11:32:55,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:55,470 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:55,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 11:32:55,471 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:55,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:55,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1542456831, now seen corresponding path program 1 times [2024-11-08 11:32:55,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:55,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333305986] [2024-11-08 11:32:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:55,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3058 backedges. 1818 proven. 0 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2024-11-08 11:32:56,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:56,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333305986] [2024-11-08 11:32:56,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333305986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:56,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:56,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:56,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801716078] [2024-11-08 11:32:56,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:56,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:56,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:56,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:56,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:56,299 INFO L87 Difference]: Start difference. First operand 30601 states and 31369 transitions. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states 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 11:32:57,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:57,014 INFO L93 Difference]: Finished difference Result 60315 states and 61841 transitions. [2024-11-08 11:32:57,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:57,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 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 1367 [2024-11-08 11:32:57,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:57,045 INFO L225 Difference]: With dead ends: 60315 [2024-11-08 11:32:57,045 INFO L226 Difference]: Without dead ends: 33603 [2024-11-08 11:32:57,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:57,064 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 33 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:57,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 536 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:32:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33603 states. [2024-11-08 11:32:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33603 to 30003. [2024-11-08 11:32:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30003 states, 30002 states have (on average 1.0245650289980668) internal successors, (30739), 30002 states have internal predecessors, (30739), 0 states have call successors, (0), 0 states 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 11:32:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30003 states to 30003 states and 30739 transitions. [2024-11-08 11:32:57,361 INFO L78 Accepts]: Start accepts. Automaton has 30003 states and 30739 transitions. Word has length 1367 [2024-11-08 11:32:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:57,362 INFO L471 AbstractCegarLoop]: Abstraction has 30003 states and 30739 transitions. [2024-11-08 11:32:57,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states 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 11:32:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 30003 states and 30739 transitions. [2024-11-08 11:32:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1496 [2024-11-08 11:32:57,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:57,382 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 11:32:57,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 11:32:57,382 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:57,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1579332912, now seen corresponding path program 1 times [2024-11-08 11:32:57,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:57,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115648987] [2024-11-08 11:32:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:57,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4227 backedges. 2566 proven. 0 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2024-11-08 11:32:57,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:57,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115648987] [2024-11-08 11:32:57,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115648987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:57,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:57,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:57,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087742756] [2024-11-08 11:32:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:57,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:57,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:57,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:57,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:57,936 INFO L87 Difference]: Start difference. First operand 30003 states and 30739 transitions. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 11:32:58,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:58,536 INFO L93 Difference]: Finished difference Result 48591 states and 49707 transitions. [2024-11-08 11:32:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:58,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 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 1495 [2024-11-08 11:32:58,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:58,538 INFO L225 Difference]: With dead ends: 48591 [2024-11-08 11:32:58,539 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 11:32:58,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:58,554 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 154 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:58,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 112 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 11:32:58,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 11:32:58,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 11:32:58,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states 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 11:32:58,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 11:32:58,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1495 [2024-11-08 11:32:58,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:58,556 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 11:32:58,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 11:32:58,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 11:32:58,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 11:32:58,558 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 11:32:58,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 11:32:58,561 INFO L407 BasicCegarLoop]: Path program 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 11:32:58,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 11:33:08,265 WARN L286 SmtUtils]: Spent 9.70s on a formula simplification. DAG size of input: 565 DAG size of output: 661 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 11:33:11,536 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 11:33:11,564 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 11:33:11,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:33:11 BoogieIcfgContainer [2024-11-08 11:33:11,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 11:33:11,573 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 11:33:11,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 11:33:11,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 11:33:11,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:31:53" (3/4) ... [2024-11-08 11:33:11,576 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 11:33:11,599 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 11:33:11,601 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 11:33:11,603 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 11:33:11,604 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 11:33:11,772 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 11:33:11,772 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 11:33:11,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 11:33:11,773 INFO L158 Benchmark]: Toolchain (without parser) took 81712.70ms. Allocated memory was 146.8MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 109.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-08 11:33:11,773 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 76.7MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 11:33:11,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.72ms. Allocated memory is still 146.8MB. Free memory was 109.0MB in the beginning and 95.3MB in the end (delta: 13.7MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. [2024-11-08 11:33:11,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.10ms. Allocated memory is still 146.8MB. Free memory was 95.3MB in the beginning and 56.8MB in the end (delta: 38.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-08 11:33:11,774 INFO L158 Benchmark]: Boogie Preprocessor took 298.12ms. Allocated memory was 146.8MB in the beginning and 232.8MB in the end (delta: 86.0MB). Free memory was 56.8MB in the beginning and 126.1MB in the end (delta: -69.3MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2024-11-08 11:33:11,774 INFO L158 Benchmark]: RCFGBuilder took 1870.74ms. Allocated memory is still 232.8MB. Free memory was 126.1MB in the beginning and 75.6MB in the end (delta: 50.5MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2024-11-08 11:33:11,774 INFO L158 Benchmark]: TraceAbstraction took 78397.20ms. Allocated memory was 232.8MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 74.6MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-08 11:33:11,774 INFO L158 Benchmark]: Witness Printer took 198.92ms. Allocated memory is still 2.5GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-08 11:33:11,775 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 76.7MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.72ms. Allocated memory is still 146.8MB. Free memory was 109.0MB in the beginning and 95.3MB in the end (delta: 13.7MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.10ms. Allocated memory is still 146.8MB. Free memory was 95.3MB in the beginning and 56.8MB in the end (delta: 38.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 298.12ms. Allocated memory was 146.8MB in the beginning and 232.8MB in the end (delta: 86.0MB). Free memory was 56.8MB in the beginning and 126.1MB in the end (delta: -69.3MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1870.74ms. Allocated memory is still 232.8MB. Free memory was 126.1MB in the beginning and 75.6MB in the end (delta: 50.5MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. * TraceAbstraction took 78397.20ms. Allocated memory was 232.8MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 74.6MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 198.92ms. Allocated memory is still 2.5GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 134]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.3s, OverallIterations: 27, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12070 SdHoareTripleChecker+Valid, 30.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12070 mSDsluCounter, 8743 SdHoareTripleChecker+Invalid, 25.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1262 mSDsCounter, 4936 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33104 IncrementalHoareTripleChecker+Invalid, 38040 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4936 mSolverCounterUnsat, 7481 mSDtfsCounter, 33104 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7941 GetRequests, 7863 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31500occurred in iteration=24, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 47743 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 21.0s InterpolantComputationTime, 22888 NumberOfCodeBlocks, 22888 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 25752 ConstructedInterpolants, 234 QuantifiedInterpolants, 94092 SizeOfPredicates, 6 NumberOfNonLiveVariables, 5916 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 38 InterpolantComputations, 25 PerfectInterpolantSequences, 35081/39169 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1776]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((long long) a0 + 99) <= 0) && (0 <= ((long long) 146 + a0))) && (a2 == 4)) || (((0 <= ((long long) a0 + 599997)) && (((long long) 500918 + a0) <= 0)) && (a2 <= 2))) || ((((0 <= ((long long) a29 + 15)) && (((long long) a0 + 99) <= 0)) && (0 <= ((long long) 600001 + a0))) && (a2 <= 2))) || (((((0 <= (((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)) + 61)) && (a29 <= 41)) && (0 <= ((long long) a29 + 15))) && (((long long) a0 + 99) <= 0)) && ((0 < (((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)) + 61)) || (((((long long) 2 + a0) >= 0) ? (((long long) 2 + a0) % 5) : ((((long long) 2 + a0) % 5) + 5)) != 0)))) || ((((((a29 <= 41) && (0 <= ((long long) a29 + 15))) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371)) && (3 == a2))) || (((0 <= ((long long) a0 + 599997)) && (((long long) 500918 + a0) <= 0)) && (3 == a2))) || (((((44 <= a29) && (0 <= ((long long) a0 + 60))) && (5 <= a2)) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371))) || (((((long long) 89 + a4) <= 0) && ((a2 != 4) || (0 < ((long long) a29 + 16)))) && (((long long) a0 + 61) <= 0))) || (((((0 <= (((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)) + 61)) && (a29 <= 41)) && (((long long) 98 + a0) <= 0)) && ((0 < (((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)) + 61)) || (((((long long) 2 + a0) >= 0) ? (((long long) 2 + a0) % 5) : ((((long long) 2 + a0) % 5) + 5)) != 0))) && (3 == a2))) || (((((0 <= ((long long) a0 + 60)) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371)) && (((long long) a29 + 127) <= 0)) && (a2 <= 2))) || (((((44 <= a29) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371)) && (3 == a2))) || (((((long long) 89 + a4) <= 0) && (((long long) 52093 + a29) <= 0)) && (((long long) a0 + 61) <= 0))) || (((((long long) a0 + 99) <= 0) && (5 <= a2)) && (a29 <= 43))) || (((((long long) 98 + a0) <= 0) && (0 <= ((long long) 146 + a0))) && (3 == a2))) || ((((0 <= ((long long) a29 + 15)) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0))) && (5 <= a2))) || (((((a29 <= 41) && (0 <= ((long long) a0 + 599997))) && (0 <= ((long long) a29 + 15))) && (a2 == 1)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371))) || ((((0 <= (((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)) + 61)) && (44 <= a29)) && (((long long) a0 + 99) <= 0)) && ((0 < (((((long long) 600067 + a0) >= 0) ? (((long long) 600067 + a0) / 5) : ((((long long) 600067 + a0) / 5) - 1)) + 61)) || (((((long long) 2 + a0) >= 0) ? (((long long) 2 + a0) % 5) : ((((long long) 2 + a0) % 5) + 5)) != 0)))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 144) <= 0))) || ((((long long) a0 + 99) <= 0) && (((long long) 89 + a4) <= 0))) || (((a29 <= 41) && (((long long) 98 + a0) <= 0)) && (5 <= a2))) || (((long long) a0 + 147) <= 0)) || (((((44 <= a29) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371)) && (a2 <= 2))) || ((((((a29 <= 41) && (0 <= ((long long) a29 + 15))) && (0 <= ((long long) a0 + 60))) && (5 <= a2)) && (((long long) a4 + 86) <= 0)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371))) || ((((0 <= ((long long) a0 + 599997)) && (((long long) a0 + 99) <= 0)) && (((long long) a4 + 86) <= 0)) && (3 == a2))) || (((44 <= a29) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0)))) || ((((((0 <= ((long long) a29 + 15)) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0)) && (a2 == 4)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371)) && (a29 <= 43))) || (((((((long long) 89 + a4) <= 0) && (0 <= ((long long) a0 + 60))) && (a2 == 4)) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371)) && (a29 <= 43))) || (((((long long) 98 + a0) <= 0) && (0 <= ((long long) 146 + a0))) && (a2 == 1))) || ((((((long long) 89 + a4) <= 0) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371)) && (3 == a2)) && (((long long) a29 + 127) <= 0))) || (((0 <= ((long long) a29 + 15)) && (((long long) 98 + a0) <= 0)) && (a2 == 4))) || ((((a29 <= 41) && (0 <= ((long long) a29 + 15))) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0)))) || (((((long long) 89 + a4) <= 0) && ((((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) >= 0) ? ((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) : (((3459790 + ((long long) ((a0 >= 0) ? (a0 / 5) : ((a0 / 5) - 1)) * 10)) / 9) - 1)) <= 600371)) && (a2 <= 2))) || (((0 <= ((long long) a0 + 599997)) && (((long long) a0 + 99) <= 0)) && (a2 == 1))) || (((((a29 <= 41) && (0 <= ((long long) 146 + a0))) && (((long long) a4 + 86) <= 0)) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || ((((a29 <= 41) && (0 <= ((long long) 146 + a0))) && (a2 == 1)) && (((long long) a0 + 61) <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-08 11:33:11,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE