./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-70.i -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 7ce47381267ee67677a133028db906aae8ff01d6ab9cce9bbfb67fc1f629a942 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:06:27,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:06:27,140 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:06:27,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:06:27,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:06:27,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:06:27,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:06:27,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:06:27,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:06:27,180 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:06:27,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:06:27,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:06:27,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:06:27,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:06:27,185 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:06:27,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:06:27,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:06:27,186 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:06:27,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:06:27,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:06:27,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:06:27,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:06:27,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:06:27,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:06:27,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:06:27,192 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:06:27,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:06:27,192 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:06:27,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:06:27,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:06:27,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:06:27,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:06:27,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:06:27,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:06:27,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:06:27,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:06:27,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:06:27,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:06:27,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:06:27,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:06:27,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:06:27,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:06:27,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ce47381267ee67677a133028db906aae8ff01d6ab9cce9bbfb67fc1f629a942 [2024-11-19 00:06:27,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:06:27,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:06:27,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:06:27,479 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:06:27,480 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:06:27,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-70.i [2024-11-19 00:06:28,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:06:29,214 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:06:29,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-70.i [2024-11-19 00:06:29,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a69560df/131537b5a8ed469bbd6cdee4ca09b63b/FLAG9b5b92107 [2024-11-19 00:06:29,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a69560df/131537b5a8ed469bbd6cdee4ca09b63b [2024-11-19 00:06:29,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:06:29,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:06:29,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:06:29,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:06:29,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:06:29,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:06:29" (1/1) ... [2024-11-19 00:06:29,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64229afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:29, skipping insertion in model container [2024-11-19 00:06:29,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:06:29" (1/1) ... [2024-11-19 00:06:29,336 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:06:29,534 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-70.i[916,929] [2024-11-19 00:06:29,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:06:29,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:06:29,918 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-70.i[916,929] [2024-11-19 00:06:30,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:06:30,067 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:06:30,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30 WrapperNode [2024-11-19 00:06:30,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:06:30,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:06:30,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:06:30,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:06:30,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,285 INFO L138 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 709 [2024-11-19 00:06:30,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:06:30,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:06:30,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:06:30,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:06:30,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,427 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 00:06:30,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:06:30,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:06:30,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:06:30,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:06:30,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (1/1) ... [2024-11-19 00:06:30,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:06:30,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:06:30,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 00:06:30,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 00:06:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:06:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:06:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:06:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:06:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:06:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:06:30,767 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:06:30,769 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:06:32,053 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-19 00:06:32,053 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:06:32,078 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:06:32,079 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:06:32,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:06:32 BoogieIcfgContainer [2024-11-19 00:06:32,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:06:32,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:06:32,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:06:32,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:06:32,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:06:29" (1/3) ... [2024-11-19 00:06:32,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed13340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:06:32, skipping insertion in model container [2024-11-19 00:06:32,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:06:30" (2/3) ... [2024-11-19 00:06:32,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed13340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:06:32, skipping insertion in model container [2024-11-19 00:06:32,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:06:32" (3/3) ... [2024-11-19 00:06:32,093 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-70.i [2024-11-19 00:06:32,110 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:06:32,111 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:06:32,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:06:32,196 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;@49b9e43f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:06:32,196 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:06:32,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 218 states have (on average 1.555045871559633) internal successors, (339), 219 states have internal predecessors, (339), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 00:06:32,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-19 00:06:32,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:32,237 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:32,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:32,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:32,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1870401890, now seen corresponding path program 1 times [2024-11-19 00:06:32,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:32,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284984967] [2024-11-19 00:06:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:32,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2024-11-19 00:06:33,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:33,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284984967] [2024-11-19 00:06:33,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284984967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:06:33,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11048469] [2024-11-19 00:06:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:33,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:06:33,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:06:33,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:06:33,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:06:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:33,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:06:33,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:06:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2024-11-19 00:06:33,506 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:06:33,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11048469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:33,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:06:33,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:06:33,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620156365] [2024-11-19 00:06:33,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:33,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:06:33,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:33,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:06:33,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:06:33,547 INFO L87 Difference]: Start difference. First operand has 281 states, 218 states have (on average 1.555045871559633) internal successors, (339), 219 states have internal predecessors, (339), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-19 00:06:33,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:33,609 INFO L93 Difference]: Finished difference Result 553 states and 968 transitions. [2024-11-19 00:06:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:06:33,615 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) Word has length 432 [2024-11-19 00:06:33,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:33,625 INFO L225 Difference]: With dead ends: 553 [2024-11-19 00:06:33,626 INFO L226 Difference]: Without dead ends: 275 [2024-11-19 00:06:33,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:06:33,634 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:33,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:06:33,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-19 00:06:33,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2024-11-19 00:06:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 213 states have (on average 1.5352112676056338) internal successors, (327), 213 states have internal predecessors, (327), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 00:06:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 447 transitions. [2024-11-19 00:06:33,703 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 447 transitions. Word has length 432 [2024-11-19 00:06:33,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:33,704 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 447 transitions. [2024-11-19 00:06:33,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-19 00:06:33,704 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 447 transitions. [2024-11-19 00:06:33,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-19 00:06:33,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:33,716 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:33,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:06:33,920 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,SelfDestructingSolverStorable0 [2024-11-19 00:06:33,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:33,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash -489881194, now seen corresponding path program 1 times [2024-11-19 00:06:33,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:33,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306475744] [2024-11-19 00:06:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:33,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:34,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:34,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:34,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306475744] [2024-11-19 00:06:34,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306475744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:34,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:34,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:06:34,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872068496] [2024-11-19 00:06:34,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:34,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:06:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:34,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:06:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:34,551 INFO L87 Difference]: Start difference. First operand 275 states and 447 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:34,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:34,973 INFO L93 Difference]: Finished difference Result 963 states and 1571 transitions. [2024-11-19 00:06:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:06:34,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 432 [2024-11-19 00:06:34,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:34,982 INFO L225 Difference]: With dead ends: 963 [2024-11-19 00:06:34,982 INFO L226 Difference]: Without dead ends: 691 [2024-11-19 00:06:34,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:34,987 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 920 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:34,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1218 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:06:34,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-19 00:06:35,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 534. [2024-11-19 00:06:35,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 436 states have (on average 1.5802752293577982) internal successors, (689), 437 states have internal predecessors, (689), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-19 00:06:35,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 879 transitions. [2024-11-19 00:06:35,068 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 879 transitions. Word has length 432 [2024-11-19 00:06:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:35,072 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 879 transitions. [2024-11-19 00:06:35,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 879 transitions. [2024-11-19 00:06:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-19 00:06:35,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:35,083 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:35,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:06:35,083 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:35,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1221848620, now seen corresponding path program 1 times [2024-11-19 00:06:35,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:35,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394825296] [2024-11-19 00:06:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:35,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:35,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:35,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394825296] [2024-11-19 00:06:35,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394825296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:35,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:35,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:06:35,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981362873] [2024-11-19 00:06:35,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:35,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:06:35,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:06:35,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:06:35,474 INFO L87 Difference]: Start difference. First operand 534 states and 879 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:35,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:35,596 INFO L93 Difference]: Finished difference Result 1579 states and 2601 transitions. [2024-11-19 00:06:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:06:35,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 432 [2024-11-19 00:06:35,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:35,614 INFO L225 Difference]: With dead ends: 1579 [2024-11-19 00:06:35,615 INFO L226 Difference]: Without dead ends: 1048 [2024-11-19 00:06:35,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:06:35,618 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 418 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:35,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1050 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:06:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-19 00:06:35,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 597. [2024-11-19 00:06:35,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 499 states have (on average 1.591182364729459) internal successors, (794), 500 states have internal predecessors, (794), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-19 00:06:35,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 984 transitions. [2024-11-19 00:06:35,683 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 984 transitions. Word has length 432 [2024-11-19 00:06:35,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:35,687 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 984 transitions. [2024-11-19 00:06:35,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:35,688 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 984 transitions. [2024-11-19 00:06:35,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-19 00:06:35,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:35,696 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:35,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:06:35,696 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:35,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:35,697 INFO L85 PathProgramCache]: Analyzing trace with hash -163240178, now seen corresponding path program 1 times [2024-11-19 00:06:35,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:35,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780898915] [2024-11-19 00:06:35,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:35,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:36,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:36,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780898915] [2024-11-19 00:06:36,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780898915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:36,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:36,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:06:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715170032] [2024-11-19 00:06:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:36,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:06:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:36,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:06:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:36,226 INFO L87 Difference]: Start difference. First operand 597 states and 984 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:37,133 INFO L93 Difference]: Finished difference Result 3155 states and 5154 transitions. [2024-11-19 00:06:37,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:06:37,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 432 [2024-11-19 00:06:37,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:37,151 INFO L225 Difference]: With dead ends: 3155 [2024-11-19 00:06:37,151 INFO L226 Difference]: Without dead ends: 2561 [2024-11-19 00:06:37,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:06:37,155 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 1795 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:37,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 2621 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:06:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2024-11-19 00:06:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1177. [2024-11-19 00:06:37,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1059 states have (on average 1.6279508970727101) internal successors, (1724), 1062 states have internal predecessors, (1724), 113 states have call successors, (113), 4 states have call predecessors, (113), 4 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-19 00:06:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1950 transitions. [2024-11-19 00:06:37,301 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1950 transitions. Word has length 432 [2024-11-19 00:06:37,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:37,304 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1950 transitions. [2024-11-19 00:06:37,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:37,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1950 transitions. [2024-11-19 00:06:37,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-19 00:06:37,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:37,317 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:37,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:06:37,318 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:37,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:37,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1192599476, now seen corresponding path program 1 times [2024-11-19 00:06:37,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:37,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175524298] [2024-11-19 00:06:37,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:37,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:37,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:37,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175524298] [2024-11-19 00:06:37,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175524298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:37,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:37,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:06:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068603780] [2024-11-19 00:06:37,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:37,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:06:37,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:06:37,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:06:37,714 INFO L87 Difference]: Start difference. First operand 1177 states and 1950 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:37,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:37,890 INFO L93 Difference]: Finished difference Result 3485 states and 5764 transitions. [2024-11-19 00:06:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:06:37,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 432 [2024-11-19 00:06:37,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:37,903 INFO L225 Difference]: With dead ends: 3485 [2024-11-19 00:06:37,903 INFO L226 Difference]: Without dead ends: 2311 [2024-11-19 00:06:37,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:06:37,906 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 414 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:37,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 845 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:06:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2024-11-19 00:06:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 1805. [2024-11-19 00:06:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1687 states have (on average 1.6218138707765264) internal successors, (2736), 1690 states have internal predecessors, (2736), 113 states have call successors, (113), 4 states have call predecessors, (113), 4 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-19 00:06:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2962 transitions. [2024-11-19 00:06:37,982 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2962 transitions. Word has length 432 [2024-11-19 00:06:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:37,982 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2962 transitions. [2024-11-19 00:06:37,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:37,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2962 transitions. [2024-11-19 00:06:37,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-19 00:06:37,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:37,993 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:37,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:06:37,994 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:37,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:37,995 INFO L85 PathProgramCache]: Analyzing trace with hash 90171447, now seen corresponding path program 1 times [2024-11-19 00:06:37,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:37,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483976227] [2024-11-19 00:06:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:37,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:38,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:38,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483976227] [2024-11-19 00:06:38,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483976227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:38,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:38,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:06:38,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806204993] [2024-11-19 00:06:38,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:38,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:06:38,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:06:38,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:06:38,277 INFO L87 Difference]: Start difference. First operand 1805 states and 2962 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:38,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:38,457 INFO L93 Difference]: Finished difference Result 5185 states and 8484 transitions. [2024-11-19 00:06:38,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:06:38,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 433 [2024-11-19 00:06:38,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:38,474 INFO L225 Difference]: With dead ends: 5185 [2024-11-19 00:06:38,475 INFO L226 Difference]: Without dead ends: 3383 [2024-11-19 00:06:38,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:06:38,480 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 390 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:38,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 894 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:06:38,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-19 00:06:38,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3045. [2024-11-19 00:06:38,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 2927 states have (on average 1.6159890673044073) internal successors, (4730), 2930 states have internal predecessors, (4730), 113 states have call successors, (113), 4 states have call predecessors, (113), 4 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-19 00:06:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 4956 transitions. [2024-11-19 00:06:38,629 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 4956 transitions. Word has length 433 [2024-11-19 00:06:38,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:38,631 INFO L471 AbstractCegarLoop]: Abstraction has 3045 states and 4956 transitions. [2024-11-19 00:06:38,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 4956 transitions. [2024-11-19 00:06:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-19 00:06:38,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:38,640 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:38,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:06:38,641 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:38,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:38,641 INFO L85 PathProgramCache]: Analyzing trace with hash 49496697, now seen corresponding path program 1 times [2024-11-19 00:06:38,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:38,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101049101] [2024-11-19 00:06:38,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:38,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:39,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:39,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101049101] [2024-11-19 00:06:39,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101049101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:39,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:39,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:06:39,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049107213] [2024-11-19 00:06:39,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:39,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:06:39,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:39,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:06:39,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:39,475 INFO L87 Difference]: Start difference. First operand 3045 states and 4956 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:39,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:39,944 INFO L93 Difference]: Finished difference Result 9034 states and 14717 transitions. [2024-11-19 00:06:39,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:06:39,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 433 [2024-11-19 00:06:39,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:39,969 INFO L225 Difference]: With dead ends: 9034 [2024-11-19 00:06:39,970 INFO L226 Difference]: Without dead ends: 5992 [2024-11-19 00:06:39,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:39,978 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 335 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:39,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 1287 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:06:39,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2024-11-19 00:06:40,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 5722. [2024-11-19 00:06:40,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5543 states have (on average 1.6258343857117084) internal successors, (9012), 5546 states have internal predecessors, (9012), 173 states have call successors, (173), 5 states have call predecessors, (173), 5 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-19 00:06:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 9358 transitions. [2024-11-19 00:06:40,156 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 9358 transitions. Word has length 433 [2024-11-19 00:06:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:40,157 INFO L471 AbstractCegarLoop]: Abstraction has 5722 states and 9358 transitions. [2024-11-19 00:06:40,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:40,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 9358 transitions. [2024-11-19 00:06:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-19 00:06:40,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:40,168 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:40,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:06:40,168 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:40,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:40,169 INFO L85 PathProgramCache]: Analyzing trace with hash -577929475, now seen corresponding path program 1 times [2024-11-19 00:06:40,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:40,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983191648] [2024-11-19 00:06:40,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:40,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:40,900 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:40,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:40,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983191648] [2024-11-19 00:06:40,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983191648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:40,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:40,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:06:40,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546157376] [2024-11-19 00:06:40,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:40,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:06:40,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:40,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:06:40,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:40,905 INFO L87 Difference]: Start difference. First operand 5722 states and 9358 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:41,311 INFO L93 Difference]: Finished difference Result 11599 states and 18935 transitions. [2024-11-19 00:06:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:06:41,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 434 [2024-11-19 00:06:41,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:41,335 INFO L225 Difference]: With dead ends: 11599 [2024-11-19 00:06:41,335 INFO L226 Difference]: Without dead ends: 5992 [2024-11-19 00:06:41,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:41,347 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 331 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:41,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1290 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:06:41,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2024-11-19 00:06:41,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 5730. [2024-11-19 00:06:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5551 states have (on average 1.6247522968834445) internal successors, (9019), 5554 states have internal predecessors, (9019), 173 states have call successors, (173), 5 states have call predecessors, (173), 5 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-19 00:06:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 9365 transitions. [2024-11-19 00:06:41,517 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 9365 transitions. Word has length 434 [2024-11-19 00:06:41,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:41,518 INFO L471 AbstractCegarLoop]: Abstraction has 5730 states and 9365 transitions. [2024-11-19 00:06:41,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:41,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 9365 transitions. [2024-11-19 00:06:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:41,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:41,526 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:41,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:06:41,527 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:41,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:41,527 INFO L85 PathProgramCache]: Analyzing trace with hash 656317142, now seen corresponding path program 1 times [2024-11-19 00:06:41,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:41,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240604947] [2024-11-19 00:06:41,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:41,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:42,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:42,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240604947] [2024-11-19 00:06:42,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240604947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:42,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:42,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:06:42,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685843389] [2024-11-19 00:06:42,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:42,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:06:42,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:42,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:06:42,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:42,551 INFO L87 Difference]: Start difference. First operand 5730 states and 9365 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:43,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:43,122 INFO L93 Difference]: Finished difference Result 10834 states and 17553 transitions. [2024-11-19 00:06:43,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:06:43,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:43,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:43,162 INFO L225 Difference]: With dead ends: 10834 [2024-11-19 00:06:43,163 INFO L226 Difference]: Without dead ends: 7356 [2024-11-19 00:06:43,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:43,174 INFO L432 NwaCegarLoop]: 773 mSDtfsCounter, 1000 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:43,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1638 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:06:43,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7356 states. [2024-11-19 00:06:43,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7356 to 6202. [2024-11-19 00:06:43,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6023 states have (on average 1.6169682882284575) internal successors, (9739), 6026 states have internal predecessors, (9739), 173 states have call successors, (173), 5 states have call predecessors, (173), 5 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-19 00:06:43,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 10085 transitions. [2024-11-19 00:06:43,358 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 10085 transitions. Word has length 435 [2024-11-19 00:06:43,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:43,359 INFO L471 AbstractCegarLoop]: Abstraction has 6202 states and 10085 transitions. [2024-11-19 00:06:43,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 10085 transitions. [2024-11-19 00:06:43,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:43,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:43,368 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:43,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:06:43,369 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:43,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:43,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1319762482, now seen corresponding path program 1 times [2024-11-19 00:06:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:43,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484042846] [2024-11-19 00:06:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:43,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:44,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:44,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484042846] [2024-11-19 00:06:44,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484042846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:44,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:44,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:06:44,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573142844] [2024-11-19 00:06:44,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:44,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:06:44,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:44,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:06:44,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:06:44,535 INFO L87 Difference]: Start difference. First operand 6202 states and 10085 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:45,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:45,669 INFO L93 Difference]: Finished difference Result 15732 states and 25378 transitions. [2024-11-19 00:06:45,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:06:45,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:45,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:45,702 INFO L225 Difference]: With dead ends: 15732 [2024-11-19 00:06:45,702 INFO L226 Difference]: Without dead ends: 12070 [2024-11-19 00:06:45,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:06:45,714 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 1167 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:45,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 2580 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 00:06:45,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12070 states. [2024-11-19 00:06:45,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12070 to 6426. [2024-11-19 00:06:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6426 states, 6247 states have (on average 1.6204578197534816) internal successors, (10123), 6250 states have internal predecessors, (10123), 173 states have call successors, (173), 5 states have call predecessors, (173), 5 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-19 00:06:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6426 states to 6426 states and 10469 transitions. [2024-11-19 00:06:45,976 INFO L78 Accepts]: Start accepts. Automaton has 6426 states and 10469 transitions. Word has length 435 [2024-11-19 00:06:45,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:45,977 INFO L471 AbstractCegarLoop]: Abstraction has 6426 states and 10469 transitions. [2024-11-19 00:06:45,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:45,978 INFO L276 IsEmpty]: Start isEmpty. Operand 6426 states and 10469 transitions. [2024-11-19 00:06:45,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:45,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:45,986 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:45,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:06:45,988 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:45,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:45,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1462568436, now seen corresponding path program 1 times [2024-11-19 00:06:45,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:45,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483742505] [2024-11-19 00:06:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:45,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:46,245 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:46,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:46,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483742505] [2024-11-19 00:06:46,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483742505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:46,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:46,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:06:46,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463056032] [2024-11-19 00:06:46,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:46,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:06:46,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:46,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:06:46,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:06:46,249 INFO L87 Difference]: Start difference. First operand 6426 states and 10469 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:46,439 INFO L93 Difference]: Finished difference Result 12942 states and 21059 transitions. [2024-11-19 00:06:46,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:06:46,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:46,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:46,465 INFO L225 Difference]: With dead ends: 12942 [2024-11-19 00:06:46,465 INFO L226 Difference]: Without dead ends: 8848 [2024-11-19 00:06:46,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:06:46,478 INFO L432 NwaCegarLoop]: 602 mSDtfsCounter, 423 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:46,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1027 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:06:46,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8848 states. [2024-11-19 00:06:46,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8848 to 5986. [2024-11-19 00:06:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5986 states, 5807 states have (on average 1.616497330807646) internal successors, (9387), 5810 states have internal predecessors, (9387), 173 states have call successors, (173), 5 states have call predecessors, (173), 5 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-19 00:06:46,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5986 states to 5986 states and 9733 transitions. [2024-11-19 00:06:46,646 INFO L78 Accepts]: Start accepts. Automaton has 5986 states and 9733 transitions. Word has length 435 [2024-11-19 00:06:46,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:46,647 INFO L471 AbstractCegarLoop]: Abstraction has 5986 states and 9733 transitions. [2024-11-19 00:06:46,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:46,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5986 states and 9733 transitions. [2024-11-19 00:06:46,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:46,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:46,682 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:46,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:06:46,683 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:46,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:46,683 INFO L85 PathProgramCache]: Analyzing trace with hash -382798730, now seen corresponding path program 1 times [2024-11-19 00:06:46,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:46,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444292480] [2024-11-19 00:06:46,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:46,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:47,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:47,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444292480] [2024-11-19 00:06:47,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444292480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:47,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:47,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:06:47,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500543862] [2024-11-19 00:06:47,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:47,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:06:47,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:47,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:06:47,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:47,523 INFO L87 Difference]: Start difference. First operand 5986 states and 9733 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:47,823 INFO L93 Difference]: Finished difference Result 14474 states and 23362 transitions. [2024-11-19 00:06:47,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:06:47,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:47,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:47,848 INFO L225 Difference]: With dead ends: 14474 [2024-11-19 00:06:47,849 INFO L226 Difference]: Without dead ends: 10332 [2024-11-19 00:06:47,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:47,861 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 426 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:47,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1244 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:06:47,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10332 states. [2024-11-19 00:06:48,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10332 to 7266. [2024-11-19 00:06:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7266 states, 7087 states have (on average 1.6180330182023424) internal successors, (11467), 7090 states have internal predecessors, (11467), 173 states have call successors, (173), 5 states have call predecessors, (173), 5 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-19 00:06:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 11813 transitions. [2024-11-19 00:06:48,105 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 11813 transitions. Word has length 435 [2024-11-19 00:06:48,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:48,106 INFO L471 AbstractCegarLoop]: Abstraction has 7266 states and 11813 transitions. [2024-11-19 00:06:48,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:48,106 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 11813 transitions. [2024-11-19 00:06:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:48,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:48,116 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:48,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:06:48,116 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:48,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:48,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1754606028, now seen corresponding path program 1 times [2024-11-19 00:06:48,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:48,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472913980] [2024-11-19 00:06:48,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:48,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:49,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:49,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472913980] [2024-11-19 00:06:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472913980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:49,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:49,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:06:49,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418188847] [2024-11-19 00:06:49,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:49,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:06:49,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:49,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:06:49,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:49,279 INFO L87 Difference]: Start difference. First operand 7266 states and 11813 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:49,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:49,751 INFO L93 Difference]: Finished difference Result 14673 states and 23819 transitions. [2024-11-19 00:06:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:06:49,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:49,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:49,772 INFO L225 Difference]: With dead ends: 14673 [2024-11-19 00:06:49,772 INFO L226 Difference]: Without dead ends: 7526 [2024-11-19 00:06:49,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:06:49,786 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 331 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:49,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1623 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:06:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7526 states. [2024-11-19 00:06:49,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7526 to 7264. [2024-11-19 00:06:49,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7264 states, 7085 states have (on average 1.6177840508115737) internal successors, (11462), 7088 states have internal predecessors, (11462), 173 states have call successors, (173), 5 states have call predecessors, (173), 5 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-19 00:06:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7264 states to 7264 states and 11808 transitions. [2024-11-19 00:06:49,977 INFO L78 Accepts]: Start accepts. Automaton has 7264 states and 11808 transitions. Word has length 435 [2024-11-19 00:06:49,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:49,978 INFO L471 AbstractCegarLoop]: Abstraction has 7264 states and 11808 transitions. [2024-11-19 00:06:49,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7264 states and 11808 transitions. [2024-11-19 00:06:49,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:49,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:49,988 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:49,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:06:49,989 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:49,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:49,989 INFO L85 PathProgramCache]: Analyzing trace with hash -436160716, now seen corresponding path program 1 times [2024-11-19 00:06:49,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:49,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060663903] [2024-11-19 00:06:49,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:49,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:51,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:51,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:51,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060663903] [2024-11-19 00:06:51,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060663903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:51,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:51,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:06:51,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748493703] [2024-11-19 00:06:51,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:51,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:06:51,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:51,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:06:51,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:51,722 INFO L87 Difference]: Start difference. First operand 7264 states and 11808 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:52,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:52,138 INFO L93 Difference]: Finished difference Result 15008 states and 24295 transitions. [2024-11-19 00:06:52,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:06:52,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:52,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:52,162 INFO L225 Difference]: With dead ends: 15008 [2024-11-19 00:06:52,162 INFO L226 Difference]: Without dead ends: 9554 [2024-11-19 00:06:52,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:52,176 INFO L432 NwaCegarLoop]: 1006 mSDtfsCounter, 690 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:52,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1689 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:06:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9554 states. [2024-11-19 00:06:52,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9554 to 7162. [2024-11-19 00:06:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7162 states, 6983 states have (on average 1.6142059286839467) internal successors, (11272), 6986 states have internal predecessors, (11272), 173 states have call successors, (173), 5 states have call predecessors, (173), 5 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-19 00:06:52,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7162 states to 7162 states and 11618 transitions. [2024-11-19 00:06:52,392 INFO L78 Accepts]: Start accepts. Automaton has 7162 states and 11618 transitions. Word has length 435 [2024-11-19 00:06:52,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:52,393 INFO L471 AbstractCegarLoop]: Abstraction has 7162 states and 11618 transitions. [2024-11-19 00:06:52,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:52,393 INFO L276 IsEmpty]: Start isEmpty. Operand 7162 states and 11618 transitions. [2024-11-19 00:06:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:52,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:52,404 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:52,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:06:52,405 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:52,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash 609377778, now seen corresponding path program 1 times [2024-11-19 00:06:52,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:52,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424178971] [2024-11-19 00:06:52,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:52,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:53,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:53,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:53,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424178971] [2024-11-19 00:06:53,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424178971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:53,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:53,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:06:53,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976366524] [2024-11-19 00:06:53,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:53,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:06:53,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:53,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:06:53,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:53,474 INFO L87 Difference]: Start difference. First operand 7162 states and 11618 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:53,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:53,827 INFO L93 Difference]: Finished difference Result 16959 states and 27404 transitions. [2024-11-19 00:06:53,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:06:53,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:53,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:53,851 INFO L225 Difference]: With dead ends: 16959 [2024-11-19 00:06:53,851 INFO L226 Difference]: Without dead ends: 10019 [2024-11-19 00:06:53,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:53,866 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 925 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:53,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1675 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:06:53,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2024-11-19 00:06:53,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 3748. [2024-11-19 00:06:54,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 3613 states have (on average 1.6030999169665099) internal successors, (5792), 3614 states have internal predecessors, (5792), 129 states have call successors, (129), 5 states have call predecessors, (129), 5 states have return successors, (129), 128 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-19 00:06:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 6050 transitions. [2024-11-19 00:06:54,012 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 6050 transitions. Word has length 435 [2024-11-19 00:06:54,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:54,013 INFO L471 AbstractCegarLoop]: Abstraction has 3748 states and 6050 transitions. [2024-11-19 00:06:54,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:54,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 6050 transitions. [2024-11-19 00:06:54,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:54,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:54,019 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:54,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:06:54,019 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:54,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1246045258, now seen corresponding path program 1 times [2024-11-19 00:06:54,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:54,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941173929] [2024-11-19 00:06:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:54,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:55,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:55,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:55,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941173929] [2024-11-19 00:06:55,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941173929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:55,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:55,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:06:55,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055421327] [2024-11-19 00:06:55,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:55,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:06:55,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:55,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:06:55,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:06:55,034 INFO L87 Difference]: Start difference. First operand 3748 states and 6050 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:55,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:55,714 INFO L93 Difference]: Finished difference Result 13574 states and 21814 transitions. [2024-11-19 00:06:55,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:06:55,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:55,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:55,740 INFO L225 Difference]: With dead ends: 13574 [2024-11-19 00:06:55,740 INFO L226 Difference]: Without dead ends: 10272 [2024-11-19 00:06:55,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:06:55,752 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1244 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:55,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 2063 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:06:55,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10272 states. [2024-11-19 00:06:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10272 to 7137. [2024-11-19 00:06:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7137 states, 6980 states have (on average 1.6047277936962752) internal successors, (11201), 6983 states have internal predecessors, (11201), 149 states have call successors, (149), 7 states have call predecessors, (149), 7 states have return successors, (149), 146 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-19 00:06:55,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 11499 transitions. [2024-11-19 00:06:55,988 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 11499 transitions. Word has length 435 [2024-11-19 00:06:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:55,989 INFO L471 AbstractCegarLoop]: Abstraction has 7137 states and 11499 transitions. [2024-11-19 00:06:55,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 11499 transitions. [2024-11-19 00:06:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-19 00:06:55,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:55,998 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:55,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:06:55,998 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:55,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:55,999 INFO L85 PathProgramCache]: Analyzing trace with hash 811201712, now seen corresponding path program 1 times [2024-11-19 00:06:55,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:55,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041511115] [2024-11-19 00:06:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:55,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:57,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:57,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041511115] [2024-11-19 00:06:57,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041511115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:57,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:57,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:06:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514628846] [2024-11-19 00:06:57,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:57,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:06:57,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:57,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:06:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:06:57,023 INFO L87 Difference]: Start difference. First operand 7137 states and 11499 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:57,763 INFO L93 Difference]: Finished difference Result 23196 states and 37324 transitions. [2024-11-19 00:06:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:06:57,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 435 [2024-11-19 00:06:57,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:57,808 INFO L225 Difference]: With dead ends: 23196 [2024-11-19 00:06:57,809 INFO L226 Difference]: Without dead ends: 16509 [2024-11-19 00:06:57,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:57,825 INFO L432 NwaCegarLoop]: 626 mSDtfsCounter, 1042 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:57,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 1891 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:06:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16509 states. [2024-11-19 00:06:58,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16509 to 6953. [2024-11-19 00:06:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 6796 states have (on average 1.5987345497351384) internal successors, (10865), 6799 states have internal predecessors, (10865), 149 states have call successors, (149), 7 states have call predecessors, (149), 7 states have return successors, (149), 146 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-19 00:06:58,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 11163 transitions. [2024-11-19 00:06:58,122 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 11163 transitions. Word has length 435 [2024-11-19 00:06:58,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:58,123 INFO L471 AbstractCegarLoop]: Abstraction has 6953 states and 11163 transitions. [2024-11-19 00:06:58,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:06:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 11163 transitions. [2024-11-19 00:06:58,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-11-19 00:06:58,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:58,134 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:06:58,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 00:06:58,134 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:58,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:58,138 INFO L85 PathProgramCache]: Analyzing trace with hash -916297109, now seen corresponding path program 1 times [2024-11-19 00:06:58,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:58,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741116057] [2024-11-19 00:06:58,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:58,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:06:59,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:59,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741116057] [2024-11-19 00:06:59,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741116057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:06:59,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:06:59,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:06:59,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770318920] [2024-11-19 00:06:59,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:06:59,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:06:59,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:06:59,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:06:59,675 INFO L87 Difference]: Start difference. First operand 6953 states and 11163 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:00,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:00,326 INFO L93 Difference]: Finished difference Result 16030 states and 25556 transitions. [2024-11-19 00:07:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:07:00,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 436 [2024-11-19 00:07:00,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:00,351 INFO L225 Difference]: With dead ends: 16030 [2024-11-19 00:07:00,352 INFO L226 Difference]: Without dead ends: 12239 [2024-11-19 00:07:00,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:07:00,362 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 605 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:00,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1600 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:07:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12239 states. [2024-11-19 00:07:00,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12239 to 9638. [2024-11-19 00:07:00,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9638 states, 9434 states have (on average 1.600063599745601) internal successors, (15095), 9441 states have internal predecessors, (15095), 191 states have call successors, (191), 12 states have call predecessors, (191), 12 states have return successors, (191), 184 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-19 00:07:00,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9638 states to 9638 states and 15477 transitions. [2024-11-19 00:07:00,626 INFO L78 Accepts]: Start accepts. Automaton has 9638 states and 15477 transitions. Word has length 436 [2024-11-19 00:07:00,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:00,627 INFO L471 AbstractCegarLoop]: Abstraction has 9638 states and 15477 transitions. [2024-11-19 00:07:00,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:00,628 INFO L276 IsEmpty]: Start isEmpty. Operand 9638 states and 15477 transitions. [2024-11-19 00:07:00,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-11-19 00:07:00,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:00,640 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:00,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 00:07:00,641 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:00,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:00,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1520569435, now seen corresponding path program 1 times [2024-11-19 00:07:00,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:00,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551911323] [2024-11-19 00:07:00,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:00,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:01,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:01,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551911323] [2024-11-19 00:07:01,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551911323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:01,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:01,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:07:01,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038314258] [2024-11-19 00:07:01,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:01,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:07:01,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:01,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:07:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:07:01,497 INFO L87 Difference]: Start difference. First operand 9638 states and 15477 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:01,919 INFO L93 Difference]: Finished difference Result 16456 states and 26378 transitions. [2024-11-19 00:07:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:07:01,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 436 [2024-11-19 00:07:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:01,944 INFO L225 Difference]: With dead ends: 16456 [2024-11-19 00:07:01,944 INFO L226 Difference]: Without dead ends: 10894 [2024-11-19 00:07:01,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:01,955 INFO L432 NwaCegarLoop]: 660 mSDtfsCounter, 418 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:01,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1497 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:07:01,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2024-11-19 00:07:02,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 9694. [2024-11-19 00:07:02,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9694 states, 9490 states have (on average 1.6003161222339304) internal successors, (15187), 9497 states have internal predecessors, (15187), 191 states have call successors, (191), 12 states have call predecessors, (191), 12 states have return successors, (191), 184 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-19 00:07:02,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9694 states to 9694 states and 15569 transitions. [2024-11-19 00:07:02,194 INFO L78 Accepts]: Start accepts. Automaton has 9694 states and 15569 transitions. Word has length 436 [2024-11-19 00:07:02,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:02,194 INFO L471 AbstractCegarLoop]: Abstraction has 9694 states and 15569 transitions. [2024-11-19 00:07:02,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 9694 states and 15569 transitions. [2024-11-19 00:07:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-11-19 00:07:02,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:02,209 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:02,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 00:07:02,210 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:02,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:02,210 INFO L85 PathProgramCache]: Analyzing trace with hash 863355303, now seen corresponding path program 1 times [2024-11-19 00:07:02,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:02,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839238850] [2024-11-19 00:07:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:02,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:02,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839238850] [2024-11-19 00:07:02,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839238850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:02,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:02,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:02,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712994391] [2024-11-19 00:07:02,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:02,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:02,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:02,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:02,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:02,441 INFO L87 Difference]: Start difference. First operand 9694 states and 15569 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:02,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:02,707 INFO L93 Difference]: Finished difference Result 16722 states and 26840 transitions. [2024-11-19 00:07:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:02,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 436 [2024-11-19 00:07:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:02,726 INFO L225 Difference]: With dead ends: 16722 [2024-11-19 00:07:02,727 INFO L226 Difference]: Without dead ends: 9710 [2024-11-19 00:07:02,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:02,735 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 213 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:02,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 1099 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:07:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9710 states. [2024-11-19 00:07:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9710 to 6624. [2024-11-19 00:07:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6624 states, 6461 states have (on average 1.592942268998607) internal successors, (10292), 6464 states have internal predecessors, (10292), 151 states have call successors, (151), 11 states have call predecessors, (151), 11 states have return successors, (151), 148 states have call predecessors, (151), 151 states have call successors, (151) [2024-11-19 00:07:02,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 10594 transitions. [2024-11-19 00:07:02,898 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 10594 transitions. Word has length 436 [2024-11-19 00:07:02,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:02,898 INFO L471 AbstractCegarLoop]: Abstraction has 6624 states and 10594 transitions. [2024-11-19 00:07:02,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:02,899 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 10594 transitions. [2024-11-19 00:07:02,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-19 00:07:02,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:02,907 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:02,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 00:07:02,907 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:02,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:02,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1178322050, now seen corresponding path program 1 times [2024-11-19 00:07:02,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:02,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737866092] [2024-11-19 00:07:02,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:02,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:04,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:04,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737866092] [2024-11-19 00:07:04,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737866092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:04,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:04,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:07:04,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165806682] [2024-11-19 00:07:04,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:04,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:07:04,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:04,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:07:04,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:07:04,068 INFO L87 Difference]: Start difference. First operand 6624 states and 10594 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:04,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:04,448 INFO L93 Difference]: Finished difference Result 13238 states and 21199 transitions. [2024-11-19 00:07:04,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:07:04,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 437 [2024-11-19 00:07:04,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:04,466 INFO L225 Difference]: With dead ends: 13238 [2024-11-19 00:07:04,467 INFO L226 Difference]: Without dead ends: 7872 [2024-11-19 00:07:04,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:07:04,476 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 736 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:04,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 815 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:07:04,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7872 states. [2024-11-19 00:07:04,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7872 to 4564. [2024-11-19 00:07:04,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 4418 states have (on average 1.5699411498415572) internal successors, (6936), 4419 states have internal predecessors, (6936), 133 states have call successors, (133), 12 states have call predecessors, (133), 12 states have return successors, (133), 132 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-19 00:07:04,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7202 transitions. [2024-11-19 00:07:04,683 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7202 transitions. Word has length 437 [2024-11-19 00:07:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:04,684 INFO L471 AbstractCegarLoop]: Abstraction has 4564 states and 7202 transitions. [2024-11-19 00:07:04,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7202 transitions. [2024-11-19 00:07:04,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-19 00:07:04,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:04,694 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:04,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 00:07:04,694 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:04,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:04,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1152142215, now seen corresponding path program 1 times [2024-11-19 00:07:04,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:04,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451603099] [2024-11-19 00:07:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:04,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:06,542 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:06,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:06,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451603099] [2024-11-19 00:07:06,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451603099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:06,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:06,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:07:06,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212473571] [2024-11-19 00:07:06,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:06,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:07:06,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:06,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:07:06,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:07:06,546 INFO L87 Difference]: Start difference. First operand 4564 states and 7202 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:07,355 INFO L93 Difference]: Finished difference Result 11536 states and 18211 transitions. [2024-11-19 00:07:07,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:07:07,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 437 [2024-11-19 00:07:07,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:07,373 INFO L225 Difference]: With dead ends: 11536 [2024-11-19 00:07:07,373 INFO L226 Difference]: Without dead ends: 8866 [2024-11-19 00:07:07,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:07:07,382 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 978 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:07,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 2886 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:07:07,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8866 states. [2024-11-19 00:07:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8866 to 5028. [2024-11-19 00:07:07,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 4882 states have (on average 1.5780417861532159) internal successors, (7704), 4883 states have internal predecessors, (7704), 133 states have call successors, (133), 12 states have call predecessors, (133), 12 states have return successors, (133), 132 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-19 00:07:07,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 7970 transitions. [2024-11-19 00:07:07,542 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 7970 transitions. Word has length 437 [2024-11-19 00:07:07,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:07,543 INFO L471 AbstractCegarLoop]: Abstraction has 5028 states and 7970 transitions. [2024-11-19 00:07:07,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 7970 transitions. [2024-11-19 00:07:07,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-19 00:07:07,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:07,549 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:07,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 00:07:07,549 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:07,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:07,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1943541728, now seen corresponding path program 1 times [2024-11-19 00:07:07,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:07,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340877930] [2024-11-19 00:07:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:07,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:08,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:08,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340877930] [2024-11-19 00:07:08,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340877930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:08,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:08,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:07:08,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404864804] [2024-11-19 00:07:08,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:08,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:07:08,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:08,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:07:08,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:08,671 INFO L87 Difference]: Start difference. First operand 5028 states and 7970 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:09,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:09,393 INFO L93 Difference]: Finished difference Result 10645 states and 16800 transitions. [2024-11-19 00:07:09,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:07:09,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 437 [2024-11-19 00:07:09,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:09,410 INFO L225 Difference]: With dead ends: 10645 [2024-11-19 00:07:09,411 INFO L226 Difference]: Without dead ends: 7809 [2024-11-19 00:07:09,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:09,418 INFO L432 NwaCegarLoop]: 669 mSDtfsCounter, 796 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:09,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1791 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:07:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7809 states. [2024-11-19 00:07:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7809 to 5751. [2024-11-19 00:07:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 5566 states have (on average 1.5727632051742724) internal successors, (8754), 5568 states have internal predecessors, (8754), 168 states have call successors, (168), 16 states have call predecessors, (168), 16 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-19 00:07:09,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 9090 transitions. [2024-11-19 00:07:09,603 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 9090 transitions. Word has length 437 [2024-11-19 00:07:09,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:09,604 INFO L471 AbstractCegarLoop]: Abstraction has 5751 states and 9090 transitions. [2024-11-19 00:07:09,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 9090 transitions. [2024-11-19 00:07:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-19 00:07:09,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:09,609 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:09,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 00:07:09,610 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:09,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:09,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1457939230, now seen corresponding path program 1 times [2024-11-19 00:07:09,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:09,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610764006] [2024-11-19 00:07:09,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:09,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-19 00:07:11,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:11,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610764006] [2024-11-19 00:07:11,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610764006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:11,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:11,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:07:11,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024096725] [2024-11-19 00:07:11,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:11,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:07:11,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:07:11,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:07:11,155 INFO L87 Difference]: Start difference. First operand 5751 states and 9090 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:11,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:11,757 INFO L93 Difference]: Finished difference Result 13406 states and 21099 transitions. [2024-11-19 00:07:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:07:11,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 437 [2024-11-19 00:07:11,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:11,772 INFO L225 Difference]: With dead ends: 13406 [2024-11-19 00:07:11,772 INFO L226 Difference]: Without dead ends: 9321 [2024-11-19 00:07:11,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:07:11,778 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 720 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:11,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1649 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:07:11,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9321 states. [2024-11-19 00:07:11,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9321 to 5679. [2024-11-19 00:07:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5679 states, 5494 states have (on average 1.5693483800509647) internal successors, (8622), 5496 states have internal predecessors, (8622), 168 states have call successors, (168), 16 states have call predecessors, (168), 16 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-19 00:07:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 8958 transitions. [2024-11-19 00:07:11,978 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 8958 transitions. Word has length 437 [2024-11-19 00:07:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:11,979 INFO L471 AbstractCegarLoop]: Abstraction has 5679 states and 8958 transitions. [2024-11-19 00:07:11,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-19 00:07:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 8958 transitions. [2024-11-19 00:07:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-19 00:07:11,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:11,984 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:11,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 00:07:11,984 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:11,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:11,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2013898881, now seen corresponding path program 1 times [2024-11-19 00:07:11,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:11,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116257352] [2024-11-19 00:07:11,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:11,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3 proven. 174 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2024-11-19 00:07:14,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:14,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116257352] [2024-11-19 00:07:14,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116257352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:07:14,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185371943] [2024-11-19 00:07:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:14,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:07:14,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:07:14,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:07:14,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:07:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:15,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 00:07:15,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:07:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3557 proven. 78 refuted. 0 times theorem prover too weak. 3445 trivial. 0 not checked. [2024-11-19 00:07:15,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:07:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 99 proven. 78 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2024-11-19 00:07:15,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185371943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:07:15,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:07:15,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2024-11-19 00:07:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446177139] [2024-11-19 00:07:15,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:07:15,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:07:15,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:15,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:07:15,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:07:15,820 INFO L87 Difference]: Start difference. First operand 5679 states and 8958 transitions. Second operand has 16 states, 16 states have (on average 17.875) internal successors, (286), 16 states have internal predecessors, (286), 4 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) [2024-11-19 00:07:16,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:16,902 INFO L93 Difference]: Finished difference Result 11250 states and 17715 transitions. [2024-11-19 00:07:16,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 00:07:16,902 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.875) internal successors, (286), 16 states have internal predecessors, (286), 4 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) Word has length 437 [2024-11-19 00:07:16,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:16,910 INFO L225 Difference]: With dead ends: 11250 [2024-11-19 00:07:16,910 INFO L226 Difference]: Without dead ends: 5703 [2024-11-19 00:07:16,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 868 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-11-19 00:07:16,916 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 1552 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:16,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 1491 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:07:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5703 states. [2024-11-19 00:07:17,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5703 to 5660. [2024-11-19 00:07:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5469 states have (on average 1.552569025415981) internal successors, (8491), 5471 states have internal predecessors, (8491), 166 states have call successors, (166), 24 states have call predecessors, (166), 24 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-19 00:07:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 8823 transitions. [2024-11-19 00:07:17,125 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 8823 transitions. Word has length 437 [2024-11-19 00:07:17,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:17,126 INFO L471 AbstractCegarLoop]: Abstraction has 5660 states and 8823 transitions. [2024-11-19 00:07:17,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.875) internal successors, (286), 16 states have internal predecessors, (286), 4 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) [2024-11-19 00:07:17,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 8823 transitions. [2024-11-19 00:07:17,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-19 00:07:17,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:17,135 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:17,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:07:17,336 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,SelfDestructingSolverStorable24 [2024-11-19 00:07:17,337 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:17,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1268032925, now seen corresponding path program 1 times [2024-11-19 00:07:17,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:17,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4510871] [2024-11-19 00:07:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:17,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat