./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label29.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label29.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 f9c1e0b37b12bd19a739c1b576b58407be1edf573bdc02c417f3f8dfb7a5931f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 16:23:42,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 16:23:42,075 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 16:23:42,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 16:23:42,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 16:23:42,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 16:23:42,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 16:23:42,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 16:23:42,106 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 16:23:42,106 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 16:23:42,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 16:23:42,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 16:23:42,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 16:23:42,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 16:23:42,108 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 16:23:42,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 16:23:42,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 16:23:42,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 16:23:42,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 16:23:42,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 16:23:42,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 16:23:42,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 16:23:42,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 16:23:42,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 16:23:42,115 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 16:23:42,115 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 16:23:42,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 16:23:42,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 16:23:42,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 16:23:42,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 16:23:42,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 16:23:42,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 16:23:42,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:23:42,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 16:23:42,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 16:23:42,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 16:23:42,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 16:23:42,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 16:23:42,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 16:23:42,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 16:23:42,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 16:23:42,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 16:23:42,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9c1e0b37b12bd19a739c1b576b58407be1edf573bdc02c417f3f8dfb7a5931f [2024-10-12 16:23:42,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 16:23:42,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 16:23:42,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 16:23:42,352 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 16:23:42,353 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 16:23:42,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label29.c [2024-10-12 16:23:43,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 16:23:44,059 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 16:23:44,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label29.c [2024-10-12 16:23:44,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/becdcce68/47bf55e0c2c642fe86a4e663386caf75/FLAG184aa23dd [2024-10-12 16:23:44,094 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/becdcce68/47bf55e0c2c642fe86a4e663386caf75 [2024-10-12 16:23:44,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 16:23:44,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 16:23:44,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 16:23:44,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 16:23:44,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 16:23:44,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:44,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727af838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44, skipping insertion in model container [2024-10-12 16:23:44,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:44,159 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 16:23:44,383 WARN L248 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/Problem16_label29.c[4907,4920] [2024-10-12 16:23:44,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:23:44,653 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 16:23:44,673 WARN L248 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/Problem16_label29.c[4907,4920] [2024-10-12 16:23:44,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:23:44,807 INFO L204 MainTranslator]: Completed translation [2024-10-12 16:23:44,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44 WrapperNode [2024-10-12 16:23:44,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 16:23:44,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 16:23:44,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 16:23:44,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 16:23:44,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:44,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,002 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-10-12 16:23:45,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 16:23:45,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 16:23:45,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 16:23:45,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 16:23:45,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,125 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]. [2024-10-12 16:23:45,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 16:23:45,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 16:23:45,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 16:23:45,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 16:23:45,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (1/1) ... [2024-10-12 16:23:45,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:23:45,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:23:45,223 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) [2024-10-12 16:23:45,227 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 [2024-10-12 16:23:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 16:23:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 16:23:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 16:23:45,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 16:23:45,318 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 16:23:45,341 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 16:23:46,862 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-10-12 16:23:46,862 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 16:23:46,915 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 16:23:46,917 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 16:23:46,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:23:46 BoogieIcfgContainer [2024-10-12 16:23:46,918 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 16:23:46,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 16:23:46,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 16:23:46,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 16:23:46,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:23:44" (1/3) ... [2024-10-12 16:23:46,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1830fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:23:46, skipping insertion in model container [2024-10-12 16:23:46,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:23:44" (2/3) ... [2024-10-12 16:23:46,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1830fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:23:46, skipping insertion in model container [2024-10-12 16:23:46,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:23:46" (3/3) ... [2024-10-12 16:23:46,925 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label29.c [2024-10-12 16:23:46,937 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 16:23:46,937 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 16:23:46,999 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 16:23:47,005 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;@69e68eb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 16:23:47,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 16:23:47,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 334 states, 332 states have (on average 1.9909638554216869) internal successors, (661), 333 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:47,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-12 16:23:47,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:47,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:23:47,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:47,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:47,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1770982627, now seen corresponding path program 1 times [2024-10-12 16:23:47,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:47,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637724355] [2024-10-12 16:23:47,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:47,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:23:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:23:47,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:23:47,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637724355] [2024-10-12 16:23:47,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637724355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:23:47,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:23:47,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:23:47,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780726606] [2024-10-12 16:23:47,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:23:47,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 16:23:47,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:23:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 16:23:47,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:23:47,202 INFO L87 Difference]: Start difference. First operand has 334 states, 332 states have (on average 1.9909638554216869) internal successors, (661), 333 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:47,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:23:47,251 INFO L93 Difference]: Finished difference Result 667 states and 1321 transitions. [2024-10-12 16:23:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 16:23:47,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-12 16:23:47,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:23:47,265 INFO L225 Difference]: With dead ends: 667 [2024-10-12 16:23:47,266 INFO L226 Difference]: Without dead ends: 332 [2024-10-12 16:23:47,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:23:47,272 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:23:47,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 16:23:47,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-10-12 16:23:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2024-10-12 16:23:47,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.8006042296072509) internal successors, (596), 331 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 596 transitions. [2024-10-12 16:23:47,332 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 596 transitions. Word has length 45 [2024-10-12 16:23:47,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:23:47,332 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 596 transitions. [2024-10-12 16:23:47,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 596 transitions. [2024-10-12 16:23:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-12 16:23:47,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:47,333 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:23:47,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 16:23:47,333 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:47,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:47,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1656845553, now seen corresponding path program 1 times [2024-10-12 16:23:47,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:47,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236451102] [2024-10-12 16:23:47,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:47,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:23:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:23:47,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:23:47,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236451102] [2024-10-12 16:23:47,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236451102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:23:47,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:23:47,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:23:47,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741641909] [2024-10-12 16:23:47,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:23:47,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:23:47,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:23:47,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:23:47,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:23:47,646 INFO L87 Difference]: Start difference. First operand 332 states and 596 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:49,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:23:49,738 INFO L93 Difference]: Finished difference Result 1321 states and 2379 transitions. [2024-10-12 16:23:49,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:23:49,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-12 16:23:49,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:23:49,743 INFO L225 Difference]: With dead ends: 1321 [2024-10-12 16:23:49,744 INFO L226 Difference]: Without dead ends: 990 [2024-10-12 16:23:49,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:23:49,746 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 1008 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:23:49,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 66 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [674 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 16:23:49,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-10-12 16:23:49,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2024-10-12 16:23:49,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 989 states have (on average 1.4984833164812943) internal successors, (1482), 989 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1482 transitions. [2024-10-12 16:23:49,812 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1482 transitions. Word has length 45 [2024-10-12 16:23:49,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:23:49,813 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1482 transitions. [2024-10-12 16:23:49,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:49,813 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1482 transitions. [2024-10-12 16:23:49,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-10-12 16:23:49,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:49,823 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:23:49,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 16:23:49,824 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:49,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:49,824 INFO L85 PathProgramCache]: Analyzing trace with hash -32815289, now seen corresponding path program 1 times [2024-10-12 16:23:49,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:49,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780653620] [2024-10-12 16:23:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:49,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:23:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:23:50,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:23:50,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780653620] [2024-10-12 16:23:50,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780653620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:23:50,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:23:50,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:23:50,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139478975] [2024-10-12 16:23:50,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:23:50,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:23:50,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:23:50,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:23:50,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:23:50,100 INFO L87 Difference]: Start difference. First operand 990 states and 1482 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:51,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:23:51,131 INFO L93 Difference]: Finished difference Result 1979 states and 3167 transitions. [2024-10-12 16:23:51,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:23:51,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 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 235 [2024-10-12 16:23:51,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:23:51,136 INFO L225 Difference]: With dead ends: 1979 [2024-10-12 16:23:51,136 INFO L226 Difference]: Without dead ends: 1319 [2024-10-12 16:23:51,137 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 [2024-10-12 16:23:51,138 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 279 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:23:51,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 536 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 16:23:51,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-10-12 16:23:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2024-10-12 16:23:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1318 states have (on average 1.4241274658573597) internal successors, (1877), 1318 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:51,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1877 transitions. [2024-10-12 16:23:51,164 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1877 transitions. Word has length 235 [2024-10-12 16:23:51,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:23:51,164 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1877 transitions. [2024-10-12 16:23:51,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:51,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1877 transitions. [2024-10-12 16:23:51,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-10-12 16:23:51,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:51,169 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:23:51,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 16:23:51,169 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:51,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2068954287, now seen corresponding path program 1 times [2024-10-12 16:23:51,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:51,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378220485] [2024-10-12 16:23:51,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:51,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:23:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-10-12 16:23:51,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:23:51,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378220485] [2024-10-12 16:23:51,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378220485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:23:51,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:23:51,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:23:51,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914573180] [2024-10-12 16:23:51,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:23:51,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:23:51,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:23:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:23:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:23:51,418 INFO L87 Difference]: Start difference. First operand 1319 states and 1877 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:52,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:23:52,480 INFO L93 Difference]: Finished difference Result 3295 states and 4946 transitions. [2024-10-12 16:23:52,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:23:52,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 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 238 [2024-10-12 16:23:52,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:23:52,493 INFO L225 Difference]: With dead ends: 3295 [2024-10-12 16:23:52,493 INFO L226 Difference]: Without dead ends: 1977 [2024-10-12 16:23:52,496 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 [2024-10-12 16:23:52,499 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 339 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:23:52,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 154 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 16:23:52,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2024-10-12 16:23:52,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1977. [2024-10-12 16:23:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1977 states, 1976 states have (on average 1.1336032388663968) internal successors, (2240), 1976 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 2240 transitions. [2024-10-12 16:23:52,530 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 2240 transitions. Word has length 238 [2024-10-12 16:23:52,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:23:52,531 INFO L471 AbstractCegarLoop]: Abstraction has 1977 states and 2240 transitions. [2024-10-12 16:23:52,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 2240 transitions. [2024-10-12 16:23:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-10-12 16:23:52,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:52,537 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:23:52,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 16:23:52,537 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:52,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:52,538 INFO L85 PathProgramCache]: Analyzing trace with hash -669490930, now seen corresponding path program 1 times [2024-10-12 16:23:52,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:52,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456382485] [2024-10-12 16:23:52,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:52,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:23:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-10-12 16:23:52,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:23:52,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456382485] [2024-10-12 16:23:52,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456382485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:23:52,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:23:52,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:23:52,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325425243] [2024-10-12 16:23:52,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:23:52,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:23:52,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:23:52,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:23:52,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:23:52,761 INFO L87 Difference]: Start difference. First operand 1977 states and 2240 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:23:53,455 INFO L93 Difference]: Finished difference Result 3953 states and 4507 transitions. [2024-10-12 16:23:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:23:53,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 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 364 [2024-10-12 16:23:53,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:23:53,461 INFO L225 Difference]: With dead ends: 3953 [2024-10-12 16:23:53,461 INFO L226 Difference]: Without dead ends: 2306 [2024-10-12 16:23:53,463 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 [2024-10-12 16:23:53,463 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 262 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:23:53,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 29 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:23:53,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2024-10-12 16:23:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2306. [2024-10-12 16:23:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2305 states have (on average 1.0928416485900216) internal successors, (2519), 2305 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:53,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 2519 transitions. [2024-10-12 16:23:53,491 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 2519 transitions. Word has length 364 [2024-10-12 16:23:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:23:53,492 INFO L471 AbstractCegarLoop]: Abstraction has 2306 states and 2519 transitions. [2024-10-12 16:23:53,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:53,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 2519 transitions. [2024-10-12 16:23:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-10-12 16:23:53,499 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:53,499 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, 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, 3, 3, 3, 3, 3, 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] [2024-10-12 16:23:53,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 16:23:53,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:53,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:53,500 INFO L85 PathProgramCache]: Analyzing trace with hash -225768864, now seen corresponding path program 1 times [2024-10-12 16:23:53,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:53,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023051071] [2024-10-12 16:23:53,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:53,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:23:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 643 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-10-12 16:23:54,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:23:54,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023051071] [2024-10-12 16:23:54,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023051071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:23:54,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:23:54,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:23:54,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697664426] [2024-10-12 16:23:54,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:23:54,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:23:54,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:23:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:23:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:23:54,210 INFO L87 Difference]: Start difference. First operand 2306 states and 2519 transitions. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:55,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:23:55,615 INFO L93 Difference]: Finished difference Result 7901 states and 8694 transitions. [2024-10-12 16:23:55,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:23:55,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 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 622 [2024-10-12 16:23:55,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:23:55,644 INFO L225 Difference]: With dead ends: 7901 [2024-10-12 16:23:55,648 INFO L226 Difference]: Without dead ends: 5925 [2024-10-12 16:23:55,651 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 [2024-10-12 16:23:55,653 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 302 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 16:23:55,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 105 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 16:23:55,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2024-10-12 16:23:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5596. [2024-10-12 16:23:55,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 5595 states have (on average 1.0804289544235925) internal successors, (6045), 5595 states have internal predecessors, (6045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 6045 transitions. [2024-10-12 16:23:55,752 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 6045 transitions. Word has length 622 [2024-10-12 16:23:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:23:55,753 INFO L471 AbstractCegarLoop]: Abstraction has 5596 states and 6045 transitions. [2024-10-12 16:23:55,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:55,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 6045 transitions. [2024-10-12 16:23:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2024-10-12 16:23:55,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:55,769 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2024-10-12 16:23:55,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 16:23:55,770 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:55,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:55,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1634296340, now seen corresponding path program 1 times [2024-10-12 16:23:55,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:55,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217833881] [2024-10-12 16:23:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:55,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:23:56,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 714 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-10-12 16:23:56,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:23:56,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217833881] [2024-10-12 16:23:56,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217833881] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:23:56,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:23:56,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:23:56,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802574259] [2024-10-12 16:23:56,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:23:56,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:23:56,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:23:56,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:23:56,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:23:56,298 INFO L87 Difference]: Start difference. First operand 5596 states and 6045 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:57,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:23:57,193 INFO L93 Difference]: Finished difference Result 13165 states and 14282 transitions. [2024-10-12 16:23:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:23:57,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 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 718 [2024-10-12 16:23:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:23:57,212 INFO L225 Difference]: With dead ends: 13165 [2024-10-12 16:23:57,212 INFO L226 Difference]: Without dead ends: 7899 [2024-10-12 16:23:57,219 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 [2024-10-12 16:23:57,220 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 98 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:23:57,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 36 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 16:23:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7899 states. [2024-10-12 16:23:57,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7899 to 7570. [2024-10-12 16:23:57,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7570 states, 7569 states have (on average 1.0803276522658212) internal successors, (8177), 7569 states have internal predecessors, (8177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:57,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7570 states to 7570 states and 8177 transitions. [2024-10-12 16:23:57,315 INFO L78 Accepts]: Start accepts. Automaton has 7570 states and 8177 transitions. Word has length 718 [2024-10-12 16:23:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:23:57,316 INFO L471 AbstractCegarLoop]: Abstraction has 7570 states and 8177 transitions. [2024-10-12 16:23:57,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 7570 states and 8177 transitions. [2024-10-12 16:23:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2024-10-12 16:23:57,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:57,324 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, 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, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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] [2024-10-12 16:23:57,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 16:23:57,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:57,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1402639787, now seen corresponding path program 1 times [2024-10-12 16:23:57,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:57,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944967435] [2024-10-12 16:23:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:57,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:23:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1642 backedges. 1175 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2024-10-12 16:23:57,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:23:57,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944967435] [2024-10-12 16:23:57,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944967435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:23:57,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:23:57,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:23:57,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860381303] [2024-10-12 16:23:57,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:23:57,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:23:57,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:23:57,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:23:57,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:23:57,898 INFO L87 Difference]: Start difference. First operand 7570 states and 8177 transitions. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:58,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:23:58,726 INFO L93 Difference]: Finished difference Result 18429 states and 20008 transitions. [2024-10-12 16:23:58,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:23:58,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 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 793 [2024-10-12 16:23:58,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:23:58,754 INFO L225 Difference]: With dead ends: 18429 [2024-10-12 16:23:58,754 INFO L226 Difference]: Without dead ends: 11518 [2024-10-12 16:23:58,760 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 [2024-10-12 16:23:58,761 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 222 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:23:58,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 34 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 16:23:58,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11518 states. [2024-10-12 16:23:58,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11518 to 11518. [2024-10-12 16:23:58,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11518 states, 11517 states have (on average 1.0764956151775635) internal successors, (12398), 11517 states have internal predecessors, (12398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11518 states to 11518 states and 12398 transitions. [2024-10-12 16:23:58,880 INFO L78 Accepts]: Start accepts. Automaton has 11518 states and 12398 transitions. Word has length 793 [2024-10-12 16:23:58,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:23:58,880 INFO L471 AbstractCegarLoop]: Abstraction has 11518 states and 12398 transitions. [2024-10-12 16:23:58,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:23:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 11518 states and 12398 transitions. [2024-10-12 16:23:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2024-10-12 16:23:58,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:23:58,891 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:23:58,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 16:23:58,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:23:58,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:23:58,892 INFO L85 PathProgramCache]: Analyzing trace with hash 253067513, now seen corresponding path program 1 times [2024-10-12 16:23:58,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:23:58,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720097144] [2024-10-12 16:23:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:23:58,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:23:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:00,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 1462 proven. 0 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2024-10-12 16:24:00,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:00,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720097144] [2024-10-12 16:24:00,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720097144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:00,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:24:00,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:24:00,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360369220] [2024-10-12 16:24:00,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:00,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:24:00,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:00,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:24:00,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:24:00,043 INFO L87 Difference]: Start difference. First operand 11518 states and 12398 transitions. Second operand has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:00,957 INFO L93 Difference]: Finished difference Result 22706 states and 24464 transitions. [2024-10-12 16:24:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:24:00,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1050 [2024-10-12 16:24:00,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:00,974 INFO L225 Difference]: With dead ends: 22706 [2024-10-12 16:24:00,975 INFO L226 Difference]: Without dead ends: 11518 [2024-10-12 16:24:00,983 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 [2024-10-12 16:24:00,984 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 268 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:00,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 110 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 16:24:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11518 states. [2024-10-12 16:24:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11518 to 11518. [2024-10-12 16:24:01,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11518 states, 11517 states have (on average 1.0760614743422767) internal successors, (12393), 11517 states have internal predecessors, (12393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:01,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11518 states to 11518 states and 12393 transitions. [2024-10-12 16:24:01,191 INFO L78 Accepts]: Start accepts. Automaton has 11518 states and 12393 transitions. Word has length 1050 [2024-10-12 16:24:01,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:01,192 INFO L471 AbstractCegarLoop]: Abstraction has 11518 states and 12393 transitions. [2024-10-12 16:24:01,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:01,192 INFO L276 IsEmpty]: Start isEmpty. Operand 11518 states and 12393 transitions. [2024-10-12 16:24:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2024-10-12 16:24:01,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:01,204 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:01,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 16:24:01,204 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:01,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:01,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2017349659, now seen corresponding path program 1 times [2024-10-12 16:24:01,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:01,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734919948] [2024-10-12 16:24:01,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:01,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 1305 proven. 157 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2024-10-12 16:24:02,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:02,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734919948] [2024-10-12 16:24:02,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734919948] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:02,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648814401] [2024-10-12 16:24:02,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:02,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:02,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:02,846 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) [2024-10-12 16:24:02,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 16:24:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:03,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:24:03,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 2012 proven. 0 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-10-12 16:24:03,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:03,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648814401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:03,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:03,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-12 16:24:03,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235177580] [2024-10-12 16:24:03,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:03,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:03,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:03,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:03,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:03,394 INFO L87 Difference]: Start difference. First operand 11518 states and 12393 transitions. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:04,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:04,155 INFO L93 Difference]: Finished difference Result 25338 states and 27344 transitions. [2024-10-12 16:24:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:04,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 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 1058 [2024-10-12 16:24:04,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:04,176 INFO L225 Difference]: With dead ends: 25338 [2024-10-12 16:24:04,177 INFO L226 Difference]: Without dead ends: 14479 [2024-10-12 16:24:04,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1062 GetRequests, 1057 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:04,187 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 237 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:04,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 28 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:24:04,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14479 states. [2024-10-12 16:24:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14479 to 13163. [2024-10-12 16:24:04,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13163 states, 13162 states have (on average 1.0797751101656283) internal successors, (14212), 13162 states have internal predecessors, (14212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13163 states to 13163 states and 14212 transitions. [2024-10-12 16:24:04,318 INFO L78 Accepts]: Start accepts. Automaton has 13163 states and 14212 transitions. Word has length 1058 [2024-10-12 16:24:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:04,319 INFO L471 AbstractCegarLoop]: Abstraction has 13163 states and 14212 transitions. [2024-10-12 16:24:04,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 13163 states and 14212 transitions. [2024-10-12 16:24:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-10-12 16:24:04,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:04,332 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:04,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 16:24:04,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-12 16:24:04,534 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:04,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:04,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1936039164, now seen corresponding path program 1 times [2024-10-12 16:24:04,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:04,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016021054] [2024-10-12 16:24:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:04,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2991 backedges. 1307 proven. 157 refuted. 0 times theorem prover too weak. 1527 trivial. 0 not checked. [2024-10-12 16:24:05,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:05,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016021054] [2024-10-12 16:24:05,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016021054] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:05,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811041674] [2024-10-12 16:24:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:05,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:05,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:05,788 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) [2024-10-12 16:24:05,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 16:24:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:06,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:24:06,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2991 backedges. 1618 proven. 0 refuted. 0 times theorem prover too weak. 1373 trivial. 0 not checked. [2024-10-12 16:24:06,429 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:06,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811041674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:06,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:06,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-12 16:24:06,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239819213] [2024-10-12 16:24:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:06,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:06,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:06,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:06,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:06,433 INFO L87 Difference]: Start difference. First operand 13163 states and 14212 transitions. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:07,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:07,174 INFO L93 Difference]: Finished difference Result 25667 states and 27761 transitions. [2024-10-12 16:24:07,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:07,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 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 1059 [2024-10-12 16:24:07,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:07,191 INFO L225 Difference]: With dead ends: 25667 [2024-10-12 16:24:07,192 INFO L226 Difference]: Without dead ends: 13163 [2024-10-12 16:24:07,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 1058 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:07,203 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 224 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:07,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 374 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:24:07,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13163 states. [2024-10-12 16:24:07,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13163 to 13163. [2024-10-12 16:24:07,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13163 states, 13162 states have (on average 1.0695183102871904) internal successors, (14077), 13162 states have internal predecessors, (14077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:07,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13163 states to 13163 states and 14077 transitions. [2024-10-12 16:24:07,323 INFO L78 Accepts]: Start accepts. Automaton has 13163 states and 14077 transitions. Word has length 1059 [2024-10-12 16:24:07,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:07,324 INFO L471 AbstractCegarLoop]: Abstraction has 13163 states and 14077 transitions. [2024-10-12 16:24:07,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:07,324 INFO L276 IsEmpty]: Start isEmpty. Operand 13163 states and 14077 transitions. [2024-10-12 16:24:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1207 [2024-10-12 16:24:07,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:07,338 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:07,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 16:24:07,538 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,SelfDestructingSolverStorable10 [2024-10-12 16:24:07,539 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:07,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:07,540 INFO L85 PathProgramCache]: Analyzing trace with hash -268866274, now seen corresponding path program 1 times [2024-10-12 16:24:07,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:07,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636257524] [2024-10-12 16:24:07,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:07,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3441 backedges. 1545 proven. 157 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2024-10-12 16:24:09,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:09,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636257524] [2024-10-12 16:24:09,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636257524] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:09,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469515644] [2024-10-12 16:24:09,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:09,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:09,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:09,021 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) [2024-10-12 16:24:09,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 16:24:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:09,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:24:09,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:09,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3441 backedges. 2246 proven. 0 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2024-10-12 16:24:09,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:09,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469515644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:09,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:09,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-12 16:24:09,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867950390] [2024-10-12 16:24:09,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:09,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:09,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:09,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:09,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:09,539 INFO L87 Difference]: Start difference. First operand 13163 states and 14077 transitions. Second operand has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:10,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:10,325 INFO L93 Difference]: Finished difference Result 27641 states and 29578 transitions. [2024-10-12 16:24:10,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:10,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1206 [2024-10-12 16:24:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:10,343 INFO L225 Difference]: With dead ends: 27641 [2024-10-12 16:24:10,343 INFO L226 Difference]: Without dead ends: 15137 [2024-10-12 16:24:10,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1210 GetRequests, 1205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:10,354 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 198 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:10,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 395 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:24:10,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15137 states. [2024-10-12 16:24:10,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15137 to 14150. [2024-10-12 16:24:10,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14150 states, 14149 states have (on average 1.0449501731571136) internal successors, (14785), 14149 states have internal predecessors, (14785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:10,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14150 states to 14150 states and 14785 transitions. [2024-10-12 16:24:10,485 INFO L78 Accepts]: Start accepts. Automaton has 14150 states and 14785 transitions. Word has length 1206 [2024-10-12 16:24:10,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:10,486 INFO L471 AbstractCegarLoop]: Abstraction has 14150 states and 14785 transitions. [2024-10-12 16:24:10,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:10,486 INFO L276 IsEmpty]: Start isEmpty. Operand 14150 states and 14785 transitions. [2024-10-12 16:24:10,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1221 [2024-10-12 16:24:10,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:10,502 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:10,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-12 16:24:10,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:10,703 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:10,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:10,704 INFO L85 PathProgramCache]: Analyzing trace with hash -754352619, now seen corresponding path program 1 times [2024-10-12 16:24:10,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:10,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045838491] [2024-10-12 16:24:10,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:10,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3184 backedges. 1541 proven. 157 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2024-10-12 16:24:12,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:12,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045838491] [2024-10-12 16:24:12,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045838491] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:12,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157690434] [2024-10-12 16:24:12,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:12,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:12,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:12,117 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) [2024-10-12 16:24:12,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 16:24:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:12,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:24:12,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:12,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3184 backedges. 2111 proven. 0 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2024-10-12 16:24:12,540 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:12,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157690434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:12,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:12,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-12 16:24:12,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472582038] [2024-10-12 16:24:12,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:12,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:12,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:12,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:12,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:12,542 INFO L87 Difference]: Start difference. First operand 14150 states and 14785 transitions. Second operand has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:13,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:13,329 INFO L93 Difference]: Finished difference Result 30602 states and 32080 transitions. [2024-10-12 16:24:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:13,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 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 1220 [2024-10-12 16:24:13,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:13,350 INFO L225 Difference]: With dead ends: 30602 [2024-10-12 16:24:13,350 INFO L226 Difference]: Without dead ends: 17111 [2024-10-12 16:24:13,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1224 GetRequests, 1219 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:13,361 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 200 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:13,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 89 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:24:13,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17111 states. [2024-10-12 16:24:13,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17111 to 17111. [2024-10-12 16:24:13,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17111 states, 17110 states have (on average 1.041320864991233) internal successors, (17817), 17110 states have internal predecessors, (17817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:13,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17111 states to 17111 states and 17817 transitions. [2024-10-12 16:24:13,523 INFO L78 Accepts]: Start accepts. Automaton has 17111 states and 17817 transitions. Word has length 1220 [2024-10-12 16:24:13,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:13,524 INFO L471 AbstractCegarLoop]: Abstraction has 17111 states and 17817 transitions. [2024-10-12 16:24:13,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:13,524 INFO L276 IsEmpty]: Start isEmpty. Operand 17111 states and 17817 transitions. [2024-10-12 16:24:13,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1285 [2024-10-12 16:24:13,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:13,546 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:13,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 16:24:13,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:13,748 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:13,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1570455890, now seen corresponding path program 1 times [2024-10-12 16:24:13,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:13,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468135994] [2024-10-12 16:24:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:13,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3067 backedges. 1961 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2024-10-12 16:24:15,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:15,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468135994] [2024-10-12 16:24:15,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468135994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:15,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:24:15,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 16:24:15,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244367885] [2024-10-12 16:24:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:15,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 16:24:15,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:15,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 16:24:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:24:15,186 INFO L87 Difference]: Start difference. First operand 17111 states and 17817 transitions. Second operand has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:16,272 INFO L93 Difference]: Finished difference Result 33564 states and 34972 transitions. [2024-10-12 16:24:16,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 16:24:16,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 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 1284 [2024-10-12 16:24:16,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:16,291 INFO L225 Difference]: With dead ends: 33564 [2024-10-12 16:24:16,291 INFO L226 Difference]: Without dead ends: 17112 [2024-10-12 16:24:16,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:16,301 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 357 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:16,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 560 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 16:24:16,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-10-12 16:24:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 17111. [2024-10-12 16:24:16,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17111 states, 17110 states have (on average 1.0410870835768555) internal successors, (17813), 17110 states have internal predecessors, (17813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17111 states to 17111 states and 17813 transitions. [2024-10-12 16:24:16,443 INFO L78 Accepts]: Start accepts. Automaton has 17111 states and 17813 transitions. Word has length 1284 [2024-10-12 16:24:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:16,443 INFO L471 AbstractCegarLoop]: Abstraction has 17111 states and 17813 transitions. [2024-10-12 16:24:16,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:16,444 INFO L276 IsEmpty]: Start isEmpty. Operand 17111 states and 17813 transitions. [2024-10-12 16:24:16,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2024-10-12 16:24:16,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:16,459 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:16,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 16:24:16,459 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:16,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:16,460 INFO L85 PathProgramCache]: Analyzing trace with hash -308124475, now seen corresponding path program 1 times [2024-10-12 16:24:16,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:16,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942853518] [2024-10-12 16:24:16,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:16,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3686 backedges. 2540 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2024-10-12 16:24:17,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:17,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942853518] [2024-10-12 16:24:17,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942853518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:17,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:24:17,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:24:17,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112928516] [2024-10-12 16:24:17,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:17,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:17,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:24:17,121 INFO L87 Difference]: Start difference. First operand 17111 states and 17813 transitions. Second operand has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:17,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:17,752 INFO L93 Difference]: Finished difference Result 34879 states and 36306 transitions. [2024-10-12 16:24:17,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:17,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 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 1288 [2024-10-12 16:24:17,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:17,793 INFO L225 Difference]: With dead ends: 34879 [2024-10-12 16:24:17,793 INFO L226 Difference]: Without dead ends: 18427 [2024-10-12 16:24:17,817 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 [2024-10-12 16:24:17,821 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 193 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:17,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 422 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:24:17,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18427 states. [2024-10-12 16:24:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18427 to 17769. [2024-10-12 16:24:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17769 states, 17768 states have (on average 1.0371454299864926) internal successors, (18428), 17768 states have internal predecessors, (18428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17769 states to 17769 states and 18428 transitions. [2024-10-12 16:24:18,133 INFO L78 Accepts]: Start accepts. Automaton has 17769 states and 18428 transitions. Word has length 1288 [2024-10-12 16:24:18,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:18,133 INFO L471 AbstractCegarLoop]: Abstraction has 17769 states and 18428 transitions. [2024-10-12 16:24:18,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 17769 states and 18428 transitions. [2024-10-12 16:24:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2024-10-12 16:24:18,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:18,147 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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] [2024-10-12 16:24:18,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 16:24:18,148 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:18,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:18,148 INFO L85 PathProgramCache]: Analyzing trace with hash 633169303, now seen corresponding path program 1 times [2024-10-12 16:24:18,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:18,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329857531] [2024-10-12 16:24:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:18,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2962 backedges. 1973 proven. 16 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2024-10-12 16:24:19,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:19,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329857531] [2024-10-12 16:24:19,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329857531] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:19,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656952641] [2024-10-12 16:24:19,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:19,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:19,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:19,423 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) [2024-10-12 16:24:19,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 16:24:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:19,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:24:19,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2962 backedges. 1945 proven. 0 refuted. 0 times theorem prover too weak. 1017 trivial. 0 not checked. [2024-10-12 16:24:20,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:20,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656952641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:20,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:20,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-12 16:24:20,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965694269] [2024-10-12 16:24:20,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:20,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:20,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:20,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:20,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:20,648 INFO L87 Difference]: Start difference. First operand 17769 states and 18428 transitions. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:21,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:21,260 INFO L93 Difference]: Finished difference Result 34879 states and 36193 transitions. [2024-10-12 16:24:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:21,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 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 1298 [2024-10-12 16:24:21,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:21,277 INFO L225 Difference]: With dead ends: 34879 [2024-10-12 16:24:21,277 INFO L226 Difference]: Without dead ends: 17769 [2024-10-12 16:24:21,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 1299 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:21,289 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 62 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:21,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 431 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 16:24:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17769 states. [2024-10-12 16:24:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17769 to 17440. [2024-10-12 16:24:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17440 states, 17439 states have (on average 1.037330122140031) internal successors, (18090), 17439 states have internal predecessors, (18090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17440 states to 17440 states and 18090 transitions. [2024-10-12 16:24:21,441 INFO L78 Accepts]: Start accepts. Automaton has 17440 states and 18090 transitions. Word has length 1298 [2024-10-12 16:24:21,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:21,442 INFO L471 AbstractCegarLoop]: Abstraction has 17440 states and 18090 transitions. [2024-10-12 16:24:21,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:21,442 INFO L276 IsEmpty]: Start isEmpty. Operand 17440 states and 18090 transitions. [2024-10-12 16:24:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2024-10-12 16:24:21,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:21,457 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, 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, 7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:21,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 16:24:21,657 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,SelfDestructingSolverStorable15 [2024-10-12 16:24:21,658 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:21,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:21,659 INFO L85 PathProgramCache]: Analyzing trace with hash 150257660, now seen corresponding path program 1 times [2024-10-12 16:24:21,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:21,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294872788] [2024-10-12 16:24:21,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:21,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3730 backedges. 2154 proven. 258 refuted. 0 times theorem prover too weak. 1318 trivial. 0 not checked. [2024-10-12 16:24:23,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:23,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294872788] [2024-10-12 16:24:23,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294872788] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:23,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553620950] [2024-10-12 16:24:23,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:23,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:23,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:23,069 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) [2024-10-12 16:24:23,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 16:24:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:23,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:24:23,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3730 backedges. 1915 proven. 0 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2024-10-12 16:24:23,776 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:23,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553620950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:23,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:23,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-12 16:24:23,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722723584] [2024-10-12 16:24:23,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:23,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:23,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:23,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:23,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:23,779 INFO L87 Difference]: Start difference. First operand 17440 states and 18090 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) [2024-10-12 16:24:24,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:24,575 INFO L93 Difference]: Finished difference Result 36195 states and 37590 transitions. [2024-10-12 16:24:24,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:24,576 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 1318 [2024-10-12 16:24:24,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:24,595 INFO L225 Difference]: With dead ends: 36195 [2024-10-12 16:24:24,595 INFO L226 Difference]: Without dead ends: 19414 [2024-10-12 16:24:24,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1323 GetRequests, 1317 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:24,609 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 225 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:24,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 426 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:24:24,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2024-10-12 16:24:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 19414. [2024-10-12 16:24:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19414 states, 19413 states have (on average 1.0363158708082212) internal successors, (20118), 19413 states have internal predecessors, (20118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:24,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19414 states to 19414 states and 20118 transitions. [2024-10-12 16:24:24,844 INFO L78 Accepts]: Start accepts. Automaton has 19414 states and 20118 transitions. Word has length 1318 [2024-10-12 16:24:24,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:24,845 INFO L471 AbstractCegarLoop]: Abstraction has 19414 states and 20118 transitions. [2024-10-12 16:24:24,845 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) [2024-10-12 16:24:24,846 INFO L276 IsEmpty]: Start isEmpty. Operand 19414 states and 20118 transitions. [2024-10-12 16:24:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1344 [2024-10-12 16:24:24,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:24,872 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, 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, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-12 16:24:24,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 16:24:25,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-12 16:24:25,074 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:25,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:25,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1169648128, now seen corresponding path program 1 times [2024-10-12 16:24:25,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:25,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467086369] [2024-10-12 16:24:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:25,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3260 backedges. 2059 proven. 258 refuted. 0 times theorem prover too weak. 943 trivial. 0 not checked. [2024-10-12 16:24:26,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:26,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467086369] [2024-10-12 16:24:26,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467086369] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:26,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207128703] [2024-10-12 16:24:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:26,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:26,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:26,826 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) [2024-10-12 16:24:26,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 16:24:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:27,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-12 16:24:27,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3260 backedges. 2045 proven. 0 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2024-10-12 16:24:28,328 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:28,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207128703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:28,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:28,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-12 16:24:28,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745679136] [2024-10-12 16:24:28,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:28,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:24:28,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:28,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:24:28,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-12 16:24:28,331 INFO L87 Difference]: Start difference. First operand 19414 states and 20118 transitions. Second operand has 4 states, 4 states have (on average 183.75) internal successors, (735), 4 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:29,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:29,220 INFO L93 Difference]: Finished difference Result 38169 states and 39573 transitions. [2024-10-12 16:24:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:24:29,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.75) internal successors, (735), 4 states have internal predecessors, (735), 0 states have call successors, (0), 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 1343 [2024-10-12 16:24:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:29,239 INFO L225 Difference]: With dead ends: 38169 [2024-10-12 16:24:29,239 INFO L226 Difference]: Without dead ends: 19414 [2024-10-12 16:24:29,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1350 GetRequests, 1342 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-12 16:24:29,251 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 120 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:29,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 558 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 16:24:29,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2024-10-12 16:24:29,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 19414. [2024-10-12 16:24:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19414 states, 19413 states have (on average 1.0359037758203267) internal successors, (20110), 19413 states have internal predecessors, (20110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19414 states to 19414 states and 20110 transitions. [2024-10-12 16:24:29,412 INFO L78 Accepts]: Start accepts. Automaton has 19414 states and 20110 transitions. Word has length 1343 [2024-10-12 16:24:29,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:29,413 INFO L471 AbstractCegarLoop]: Abstraction has 19414 states and 20110 transitions. [2024-10-12 16:24:29,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.75) internal successors, (735), 4 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 19414 states and 20110 transitions. [2024-10-12 16:24:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1370 [2024-10-12 16:24:29,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:29,429 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-12 16:24:29,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-12 16:24:29,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:29,630 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:29,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:29,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1497481989, now seen corresponding path program 1 times [2024-10-12 16:24:29,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:29,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54482918] [2024-10-12 16:24:29,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:29,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3816 backedges. 2959 proven. 256 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-10-12 16:24:31,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:31,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54482918] [2024-10-12 16:24:31,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54482918] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:31,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413120657] [2024-10-12 16:24:31,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:31,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:31,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:31,735 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:24:31,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-12 16:24:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:32,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:24:32,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3816 backedges. 1400 proven. 0 refuted. 0 times theorem prover too weak. 2416 trivial. 0 not checked. [2024-10-12 16:24:32,442 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:32,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413120657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:32,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:32,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-12 16:24:32,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021390832] [2024-10-12 16:24:32,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:32,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:32,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:32,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:32,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:32,444 INFO L87 Difference]: Start difference. First operand 19414 states and 20110 transitions. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:33,110 INFO L93 Difference]: Finished difference Result 38498 states and 39890 transitions. [2024-10-12 16:24:33,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 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 1369 [2024-10-12 16:24:33,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:33,126 INFO L225 Difference]: With dead ends: 38498 [2024-10-12 16:24:33,127 INFO L226 Difference]: Without dead ends: 19085 [2024-10-12 16:24:33,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1377 GetRequests, 1371 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:33,138 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 117 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:33,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 429 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:24:33,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19085 states. [2024-10-12 16:24:33,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19085 to 19085. [2024-10-12 16:24:33,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19085 states, 19084 states have (on average 1.0337979459232864) internal successors, (19729), 19084 states have internal predecessors, (19729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:33,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19085 states to 19085 states and 19729 transitions. [2024-10-12 16:24:33,279 INFO L78 Accepts]: Start accepts. Automaton has 19085 states and 19729 transitions. Word has length 1369 [2024-10-12 16:24:33,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:33,280 INFO L471 AbstractCegarLoop]: Abstraction has 19085 states and 19729 transitions. [2024-10-12 16:24:33,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:33,280 INFO L276 IsEmpty]: Start isEmpty. Operand 19085 states and 19729 transitions. [2024-10-12 16:24:33,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1482 [2024-10-12 16:24:33,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:33,297 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, 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, 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, 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:33,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-12 16:24:33,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:33,499 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:33,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:33,499 INFO L85 PathProgramCache]: Analyzing trace with hash 976472757, now seen corresponding path program 1 times [2024-10-12 16:24:33,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:33,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119618959] [2024-10-12 16:24:33,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:33,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4180 backedges. 2430 proven. 258 refuted. 0 times theorem prover too weak. 1492 trivial. 0 not checked. [2024-10-12 16:24:35,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:35,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119618959] [2024-10-12 16:24:35,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119618959] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:35,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923069332] [2024-10-12 16:24:35,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:35,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:35,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:35,025 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:24:35,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-12 16:24:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:35,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 1705 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:24:35,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4180 backedges. 2365 proven. 0 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2024-10-12 16:24:35,916 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:35,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923069332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:35,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:35,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-12 16:24:35,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141443053] [2024-10-12 16:24:35,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:35,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:35,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:35,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:35,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:35,919 INFO L87 Difference]: Start difference. First operand 19085 states and 19729 transitions. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:36,642 INFO L93 Difference]: Finished difference Result 38498 states and 39805 transitions. [2024-10-12 16:24:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 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 1481 [2024-10-12 16:24:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:36,660 INFO L225 Difference]: With dead ends: 38498 [2024-10-12 16:24:36,660 INFO L226 Difference]: Without dead ends: 20072 [2024-10-12 16:24:36,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1486 GetRequests, 1480 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:36,672 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 61 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:36,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 433 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:24:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20072 states. [2024-10-12 16:24:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20072 to 20072. [2024-10-12 16:24:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20072 states, 20071 states have (on average 1.0319864481092123) internal successors, (20713), 20071 states have internal predecessors, (20713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:36,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20072 states to 20072 states and 20713 transitions. [2024-10-12 16:24:36,826 INFO L78 Accepts]: Start accepts. Automaton has 20072 states and 20713 transitions. Word has length 1481 [2024-10-12 16:24:36,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:36,827 INFO L471 AbstractCegarLoop]: Abstraction has 20072 states and 20713 transitions. [2024-10-12 16:24:36,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:36,827 INFO L276 IsEmpty]: Start isEmpty. Operand 20072 states and 20713 transitions. [2024-10-12 16:24:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1533 [2024-10-12 16:24:36,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:36,846 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, 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, 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, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:36,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-12 16:24:37,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:37,050 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:37,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:37,051 INFO L85 PathProgramCache]: Analyzing trace with hash -662248106, now seen corresponding path program 1 times [2024-10-12 16:24:37,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:37,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226452758] [2024-10-12 16:24:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:37,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:38,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 2990 proven. 32 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2024-10-12 16:24:38,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:38,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226452758] [2024-10-12 16:24:38,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226452758] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:38,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939586525] [2024-10-12 16:24:38,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:38,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:38,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:38,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:24:38,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-12 16:24:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:39,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 1760 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:24:39,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 1508 proven. 0 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2024-10-12 16:24:39,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:39,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939586525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:39,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:39,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-12 16:24:39,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135948209] [2024-10-12 16:24:39,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:39,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:39,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:39,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:39,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:39,375 INFO L87 Difference]: Start difference. First operand 20072 states and 20713 transitions. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:40,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:40,027 INFO L93 Difference]: Finished difference Result 39485 states and 40763 transitions. [2024-10-12 16:24:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:40,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 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 1532 [2024-10-12 16:24:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:40,047 INFO L225 Difference]: With dead ends: 39485 [2024-10-12 16:24:40,048 INFO L226 Difference]: Without dead ends: 20072 [2024-10-12 16:24:40,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1539 GetRequests, 1533 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:40,062 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 120 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:40,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 412 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:24:40,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20072 states. [2024-10-12 16:24:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20072 to 19743. [2024-10-12 16:24:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19743 states, 19742 states have (on average 1.025124100901631) internal successors, (20238), 19742 states have internal predecessors, (20238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19743 states to 19743 states and 20238 transitions. [2024-10-12 16:24:40,225 INFO L78 Accepts]: Start accepts. Automaton has 19743 states and 20238 transitions. Word has length 1532 [2024-10-12 16:24:40,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:40,225 INFO L471 AbstractCegarLoop]: Abstraction has 19743 states and 20238 transitions. [2024-10-12 16:24:40,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:40,226 INFO L276 IsEmpty]: Start isEmpty. Operand 19743 states and 20238 transitions. [2024-10-12 16:24:40,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1600 [2024-10-12 16:24:40,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:40,245 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:24:40,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-12 16:24:40,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-12 16:24:40,447 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:40,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:40,447 INFO L85 PathProgramCache]: Analyzing trace with hash -793338887, now seen corresponding path program 1 times [2024-10-12 16:24:40,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:40,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99057237] [2024-10-12 16:24:40,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:40,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4910 backedges. 3570 proven. 30 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2024-10-12 16:24:41,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:41,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99057237] [2024-10-12 16:24:41,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99057237] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:41,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509705460] [2024-10-12 16:24:41,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:41,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:41,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:41,856 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:24:41,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-12 16:24:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:42,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:24:42,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:42,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4910 backedges. 1619 proven. 0 refuted. 0 times theorem prover too weak. 3291 trivial. 0 not checked. [2024-10-12 16:24:42,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:42,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509705460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:42,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:42,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-12 16:24:42,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729230367] [2024-10-12 16:24:42,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:42,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:42,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:42,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:42,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:42,424 INFO L87 Difference]: Start difference. First operand 19743 states and 20238 transitions. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:43,116 INFO L93 Difference]: Finished difference Result 38827 states and 39813 transitions. [2024-10-12 16:24:43,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 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 1599 [2024-10-12 16:24:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:43,136 INFO L225 Difference]: With dead ends: 38827 [2024-10-12 16:24:43,137 INFO L226 Difference]: Without dead ends: 19743 [2024-10-12 16:24:43,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1605 GetRequests, 1599 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:43,150 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 118 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:43,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 416 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:24:43,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19743 states. [2024-10-12 16:24:43,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19743 to 19743. [2024-10-12 16:24:43,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19743 states, 19742 states have (on average 1.024161685746125) internal successors, (20219), 19742 states have internal predecessors, (20219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19743 states to 19743 states and 20219 transitions. [2024-10-12 16:24:43,320 INFO L78 Accepts]: Start accepts. Automaton has 19743 states and 20219 transitions. Word has length 1599 [2024-10-12 16:24:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:43,321 INFO L471 AbstractCegarLoop]: Abstraction has 19743 states and 20219 transitions. [2024-10-12 16:24:43,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:43,322 INFO L276 IsEmpty]: Start isEmpty. Operand 19743 states and 20219 transitions. [2024-10-12 16:24:43,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1781 [2024-10-12 16:24:43,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:43,344 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 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] [2024-10-12 16:24:43,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-12 16:24:43,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-12 16:24:43,545 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:43,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:43,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1746318350, now seen corresponding path program 1 times [2024-10-12 16:24:43,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:43,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816396377] [2024-10-12 16:24:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:43,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5841 backedges. 2973 proven. 0 refuted. 0 times theorem prover too weak. 2868 trivial. 0 not checked. [2024-10-12 16:24:44,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:44,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816396377] [2024-10-12 16:24:44,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816396377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:44,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:24:44,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:24:44,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135204650] [2024-10-12 16:24:44,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:44,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:44,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:44,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:44,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:24:44,603 INFO L87 Difference]: Start difference. First operand 19743 states and 20219 transitions. Second operand has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:45,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:45,250 INFO L93 Difference]: Finished difference Result 39485 states and 40436 transitions. [2024-10-12 16:24:45,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:45,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 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 1780 [2024-10-12 16:24:45,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:45,277 INFO L225 Difference]: With dead ends: 39485 [2024-10-12 16:24:45,278 INFO L226 Difference]: Without dead ends: 19414 [2024-10-12 16:24:45,290 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 [2024-10-12 16:24:45,290 INFO L432 NwaCegarLoop]: 403 mSDtfsCounter, 94 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:45,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 407 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:24:45,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2024-10-12 16:24:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 18098. [2024-10-12 16:24:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18098 states, 18097 states have (on average 1.020279604354313) internal successors, (18464), 18097 states have internal predecessors, (18464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18098 states to 18098 states and 18464 transitions. [2024-10-12 16:24:45,458 INFO L78 Accepts]: Start accepts. Automaton has 18098 states and 18464 transitions. Word has length 1780 [2024-10-12 16:24:45,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:45,459 INFO L471 AbstractCegarLoop]: Abstraction has 18098 states and 18464 transitions. [2024-10-12 16:24:45,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 18098 states and 18464 transitions. [2024-10-12 16:24:45,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1850 [2024-10-12 16:24:45,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:45,486 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 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] [2024-10-12 16:24:45,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 16:24:45,486 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:45,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash 531444556, now seen corresponding path program 1 times [2024-10-12 16:24:45,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:45,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938950962] [2024-10-12 16:24:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:45,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6488 backedges. 5066 proven. 45 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2024-10-12 16:24:47,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:47,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938950962] [2024-10-12 16:24:47,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938950962] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:47,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701982076] [2024-10-12 16:24:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:47,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:47,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:47,157 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:24:47,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-12 16:24:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:47,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:24:47,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 6488 backedges. 1877 proven. 0 refuted. 0 times theorem prover too weak. 4611 trivial. 0 not checked. [2024-10-12 16:24:47,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:47,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701982076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:47,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:47,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-12 16:24:47,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510072932] [2024-10-12 16:24:47,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:47,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:47,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:47,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:47,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:47,757 INFO L87 Difference]: Start difference. First operand 18098 states and 18464 transitions. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:48,443 INFO L93 Difference]: Finished difference Result 35866 states and 36595 transitions. [2024-10-12 16:24:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:48,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 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 1849 [2024-10-12 16:24:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:48,460 INFO L225 Difference]: With dead ends: 35866 [2024-10-12 16:24:48,460 INFO L226 Difference]: Without dead ends: 18098 [2024-10-12 16:24:48,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1855 GetRequests, 1849 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:24:48,472 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 117 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:48,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 421 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:24:48,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18098 states. [2024-10-12 16:24:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18098 to 16453. [2024-10-12 16:24:48,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16453 states, 16452 states have (on average 1.0168368587405787) internal successors, (16729), 16452 states have internal predecessors, (16729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:48,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16453 states to 16453 states and 16729 transitions. [2024-10-12 16:24:48,603 INFO L78 Accepts]: Start accepts. Automaton has 16453 states and 16729 transitions. Word has length 1849 [2024-10-12 16:24:48,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:48,604 INFO L471 AbstractCegarLoop]: Abstraction has 16453 states and 16729 transitions. [2024-10-12 16:24:48,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:48,605 INFO L276 IsEmpty]: Start isEmpty. Operand 16453 states and 16729 transitions. [2024-10-12 16:24:48,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2011 [2024-10-12 16:24:48,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:48,629 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 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, 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] [2024-10-12 16:24:48,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-12 16:24:48,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-12 16:24:48,830 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:48,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash -59239656, now seen corresponding path program 1 times [2024-10-12 16:24:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:48,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356904489] [2024-10-12 16:24:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:48,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 7866 backedges. 3847 proven. 0 refuted. 0 times theorem prover too weak. 4019 trivial. 0 not checked. [2024-10-12 16:24:50,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:50,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356904489] [2024-10-12 16:24:50,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356904489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:50,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:24:50,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:24:50,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670277553] [2024-10-12 16:24:50,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:50,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:50,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:50,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:50,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:24:50,454 INFO L87 Difference]: Start difference. First operand 16453 states and 16729 transitions. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:51,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:51,206 INFO L93 Difference]: Finished difference Result 35208 states and 35803 transitions. [2024-10-12 16:24:51,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:51,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 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 2010 [2024-10-12 16:24:51,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:51,223 INFO L225 Difference]: With dead ends: 35208 [2024-10-12 16:24:51,224 INFO L226 Difference]: Without dead ends: 19414 [2024-10-12 16:24:51,234 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 [2024-10-12 16:24:51,234 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 206 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:51,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 50 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:24:51,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2024-10-12 16:24:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 17440. [2024-10-12 16:24:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17440 states, 17439 states have (on average 1.016400022937095) internal successors, (17725), 17439 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17440 states to 17440 states and 17725 transitions. [2024-10-12 16:24:51,375 INFO L78 Accepts]: Start accepts. Automaton has 17440 states and 17725 transitions. Word has length 2010 [2024-10-12 16:24:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:51,376 INFO L471 AbstractCegarLoop]: Abstraction has 17440 states and 17725 transitions. [2024-10-12 16:24:51,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 17440 states and 17725 transitions. [2024-10-12 16:24:51,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2052 [2024-10-12 16:24:51,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:51,401 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-10-12 16:24:51,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 16:24:51,401 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:51,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:51,402 INFO L85 PathProgramCache]: Analyzing trace with hash 356460719, now seen corresponding path program 1 times [2024-10-12 16:24:51,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:51,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053307584] [2024-10-12 16:24:51,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:51,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:53,338 INFO L134 CoverageAnalysis]: Checked inductivity of 8619 backedges. 6116 proven. 140 refuted. 0 times theorem prover too weak. 2363 trivial. 0 not checked. [2024-10-12 16:24:53,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:53,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053307584] [2024-10-12 16:24:53,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053307584] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:53,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637034464] [2024-10-12 16:24:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:53,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:53,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:53,340 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:24:53,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-12 16:24:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:53,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 2361 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:24:53,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 8619 backedges. 5036 proven. 0 refuted. 0 times theorem prover too weak. 3583 trivial. 0 not checked. [2024-10-12 16:24:53,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:53,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637034464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:53,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:53,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-12 16:24:53,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861491618] [2024-10-12 16:24:53,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:53,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:53,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:53,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:53,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:53,877 INFO L87 Difference]: Start difference. First operand 17440 states and 17725 transitions. Second operand has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:54,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:54,624 INFO L93 Difference]: Finished difference Result 36195 states and 36793 transitions. [2024-10-12 16:24:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:54,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 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 2051 [2024-10-12 16:24:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:54,643 INFO L225 Difference]: With dead ends: 36195 [2024-10-12 16:24:54,643 INFO L226 Difference]: Without dead ends: 19414 [2024-10-12 16:24:54,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2056 GetRequests, 2051 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:54,653 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 221 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:54,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 422 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:24:54,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2024-10-12 16:24:54,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 18427. [2024-10-12 16:24:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18427 states, 18426 states have (on average 1.015901443612287) internal successors, (18719), 18426 states have internal predecessors, (18719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18427 states to 18427 states and 18719 transitions. [2024-10-12 16:24:54,796 INFO L78 Accepts]: Start accepts. Automaton has 18427 states and 18719 transitions. Word has length 2051 [2024-10-12 16:24:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:54,797 INFO L471 AbstractCegarLoop]: Abstraction has 18427 states and 18719 transitions. [2024-10-12 16:24:54,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:54,797 INFO L276 IsEmpty]: Start isEmpty. Operand 18427 states and 18719 transitions. [2024-10-12 16:24:54,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2176 [2024-10-12 16:24:54,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:24:54,823 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-10-12 16:24:54,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-12 16:24:55,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-12 16:24:55,024 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:24:55,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:24:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1972576730, now seen corresponding path program 1 times [2024-10-12 16:24:55,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:24:55,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687626092] [2024-10-12 16:24:55,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:55,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:24:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:57,168 INFO L134 CoverageAnalysis]: Checked inductivity of 9124 backedges. 6539 proven. 140 refuted. 0 times theorem prover too weak. 2445 trivial. 0 not checked. [2024-10-12 16:24:57,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:24:57,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687626092] [2024-10-12 16:24:57,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687626092] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:24:57,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427293790] [2024-10-12 16:24:57,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:24:57,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:57,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:24:57,171 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:24:57,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-12 16:24:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:24:57,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 2464 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:24:57,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:24:57,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9124 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 8641 trivial. 0 not checked. [2024-10-12 16:24:57,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:24:57,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427293790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:24:57,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:24:57,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-12 16:24:57,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567626006] [2024-10-12 16:24:57,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:24:57,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:24:57,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:24:57,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:24:57,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:57,737 INFO L87 Difference]: Start difference. First operand 18427 states and 18719 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:58,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:24:58,397 INFO L93 Difference]: Finished difference Result 19414 states and 19714 transitions. [2024-10-12 16:24:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:24:58,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 2175 [2024-10-12 16:24:58,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:24:58,399 INFO L225 Difference]: With dead ends: 19414 [2024-10-12 16:24:58,399 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 16:24:58,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2180 GetRequests, 2175 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:24:58,404 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 288 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:24:58,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 419 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:24:58,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 16:24:58,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 16:24:58,405 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) [2024-10-12 16:24:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 16:24:58,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2175 [2024-10-12 16:24:58,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:24:58,405 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 16:24:58,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:24:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 16:24:58,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 16:24:58,408 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 16:24:58,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-12 16:24:58,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:24:58,615 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] [2024-10-12 16:24:58,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 16:25:00,085 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 16:25:00,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 04:25:00 BoogieIcfgContainer [2024-10-12 16:25:00,104 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 16:25:00,104 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 16:25:00,104 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 16:25:00,105 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 16:25:00,105 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:23:46" (3/4) ... [2024-10-12 16:25:00,110 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 16:25:00,141 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-12 16:25:00,146 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-12 16:25:00,147 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 16:25:00,152 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 16:25:00,362 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 16:25:00,363 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 16:25:00,363 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 16:25:00,364 INFO L158 Benchmark]: Toolchain (without parser) took 76265.83ms. Allocated memory was 138.4MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 62.0MB in the beginning and 2.4GB in the end (delta: -2.4GB). Peak memory consumption was 743.0MB. Max. memory is 16.1GB. [2024-10-12 16:25:00,364 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory was 102.2MB in the beginning and 102.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 16:25:00,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 707.70ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 61.8MB in the beginning and 121.3MB in the end (delta: -59.5MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-10-12 16:25:00,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 194.11ms. Allocated memory is still 207.6MB. Free memory was 121.3MB in the beginning and 160.8MB in the end (delta: -39.5MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-10-12 16:25:00,365 INFO L158 Benchmark]: Boogie Preprocessor took 187.55ms. Allocated memory is still 207.6MB. Free memory was 160.8MB in the beginning and 126.2MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-12 16:25:00,365 INFO L158 Benchmark]: RCFGBuilder took 1722.55ms. Allocated memory was 207.6MB in the beginning and 308.3MB in the end (delta: 100.7MB). Free memory was 126.2MB in the beginning and 187.8MB in the end (delta: -61.6MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. [2024-10-12 16:25:00,365 INFO L158 Benchmark]: TraceAbstraction took 73184.59ms. Allocated memory was 308.3MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 186.7MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-10-12 16:25:00,365 INFO L158 Benchmark]: Witness Printer took 259.08ms. Allocated memory is still 3.2GB. Free memory was 2.5GB in the beginning and 2.4GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-12 16:25:00,366 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory was 102.2MB in the beginning and 102.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 707.70ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 61.8MB in the beginning and 121.3MB in the end (delta: -59.5MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 194.11ms. Allocated memory is still 207.6MB. Free memory was 121.3MB in the beginning and 160.8MB in the end (delta: -39.5MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 187.55ms. Allocated memory is still 207.6MB. Free memory was 160.8MB in the beginning and 126.2MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1722.55ms. Allocated memory was 207.6MB in the beginning and 308.3MB in the end (delta: 100.7MB). Free memory was 126.2MB in the beginning and 187.8MB in the end (delta: -61.6MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. * TraceAbstraction took 73184.59ms. Allocated memory was 308.3MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 186.7MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 259.08ms. Allocated memory is still 3.2GB. Free memory was 2.5GB in the beginning and 2.4GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * 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: 155]: 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, 334 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.6s, OverallIterations: 27, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5936 SdHoareTripleChecker+Valid, 20.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5936 mSDsluCounter, 8358 SdHoareTripleChecker+Invalid, 17.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 388 mSDsCounter, 2470 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23807 IncrementalHoareTripleChecker+Invalid, 26277 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2470 mSolverCounterUnsat, 7970 mSDtfsCounter, 23807 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20676 GetRequests, 20576 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20072occurred in iteration=20, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 10200 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 33.9s InterpolantComputationTime, 51588 NumberOfCodeBlocks, 51588 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 51547 ConstructedInterpolants, 0 QuantifiedInterpolants, 139249 SizeOfPredicates, 4 NumberOfNonLiveVariables, 23854 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 41 InterpolantComputations, 27 PerfectInterpolantSequences, 153953/156014 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: 1783]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a16 == 9) && (((long long) a18 + 156) <= 0)) && (7 == a12)) || ((((a12 <= 5) && (158 <= a18)) && (a16 != 9)) && (a16 <= 11))) || (((a16 == 9) && (a15 <= 3)) && (137 <= a18))) || ((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a15 == 4)) && (7 == a12))) || ((a12 == 9) && (a16 == 9))) || ((((a16 <= 8) && (0 <= ((long long) 87 + a18))) && (a12 == 8)) && (a18 <= 132))) || ((a16 <= 8) && (a12 <= 5))) || ((a16 <= 8) && (a12 == 9))) || ((a12 == 6) && (a16 <= 11))) || ((a12 <= 5) && (a15 <= 3))) || (((a16 <= 8) && (a12 == 8)) && (((long long) a18 + 156) <= 0))) || ((((a15 <= 3) && (a18 <= 132)) && (a16 != 9)) && (7 == a12))) || (((a12 == 9) && (a15 <= 3)) && (a16 <= 11))) || (((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a15 <= 3))) || (((a12 <= 5) && (a18 <= 132)) && (a16 <= 11))) || ((((0 <= ((long long) 87 + a18)) && (a16 == 9)) && (4 <= a15)) && (7 == a12))) || ((((a15 <= 3) && (a16 != 9)) && (a16 <= 11)) && (7 == a12))) || (((a15 <= 3) && (a12 == 8)) && (158 <= a18))) || (((a15 <= 3) && (a12 == 8)) && (a18 <= 132))) || (((a15 <= 3) && (a12 == 8)) && (a16 <= 11))) || (((a16 == 9) && (a12 == 8)) && (a18 <= 132))) || (((0 <= ((long long) 87 + a18)) && (a15 <= 3)) && (a12 == 6))) || ((a16 <= 8) && (a15 <= 3))) || (((a12 == 9) && (a15 <= 3)) && (((long long) a18 + 156) <= 0))) || ((((a16 == 8) && (a15 == 4)) && (((long long) a18 + 156) <= 0)) && (7 == a12))) RESULT: Ultimate proved your program to be correct! [2024-10-12 16:25:00,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE