./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-58.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-58.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 a1b1542a0d7ba885e4ac39939a1802ee813565730a5e0b0e8c42778ed7346026 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:05:22,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:05:22,157 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:05:22,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:05:22,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:05:22,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:05:22,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:05:22,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:05:22,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:05:22,191 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:05:22,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:05:22,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:05:22,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:05:22,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:05:22,192 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:05:22,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:05:22,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:05:22,193 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:05:22,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:05:22,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:05:22,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:05:22,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:05:22,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:05:22,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:05:22,197 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:05:22,198 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:05:22,198 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:05:22,198 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:05:22,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:05:22,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:05:22,199 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:05:22,199 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:05:22,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:05:22,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:05:22,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:05:22,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:05:22,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:05:22,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:05:22,201 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:05:22,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:05:22,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:05:22,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:05:22,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b1542a0d7ba885e4ac39939a1802ee813565730a5e0b0e8c42778ed7346026 [2024-11-19 00:05:22,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:05:22,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:05:22,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:05:22,453 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:05:22,453 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:05:22,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-58.i [2024-11-19 00:05:23,674 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:05:23,896 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:05:23,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-58.i [2024-11-19 00:05:23,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d17f06a5/164e42ec9d4c483aa491eba8e9e3b753/FLAGe851a0717 [2024-11-19 00:05:23,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d17f06a5/164e42ec9d4c483aa491eba8e9e3b753 [2024-11-19 00:05:23,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:05:23,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:05:23,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:05:23,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:05:23,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:05:23,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:05:23" (1/1) ... [2024-11-19 00:05:23,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41328301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:23, skipping insertion in model container [2024-11-19 00:05:23,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:05:23" (1/1) ... [2024-11-19 00:05:23,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:05:24,142 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-58.i[916,929] [2024-11-19 00:05:24,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:05:24,375 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:05:24,385 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-58.i[916,929] [2024-11-19 00:05:24,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:05:24,508 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:05:24,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24 WrapperNode [2024-11-19 00:05:24,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:05:24,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:05:24,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:05:24,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:05:24,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,599 INFO L138 Inliner]: procedures = 26, calls = 99, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 700 [2024-11-19 00:05:24,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:05:24,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:05:24,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:05:24,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:05:24,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,673 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 00:05:24,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:05:24,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:05:24,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:05:24,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:05:24,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (1/1) ... [2024-11-19 00:05:24,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:05:24,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:05:24,763 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 00:05:24,767 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 00:05:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:05:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:05:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:05:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:05:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:05:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:05:24,930 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:05:24,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:05:25,910 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-19 00:05:25,912 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:05:25,927 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:05:25,928 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:05:25,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:05:25 BoogieIcfgContainer [2024-11-19 00:05:25,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:05:25,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:05:25,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:05:25,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:05:25,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:05:23" (1/3) ... [2024-11-19 00:05:25,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda40f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:05:25, skipping insertion in model container [2024-11-19 00:05:25,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:05:24" (2/3) ... [2024-11-19 00:05:25,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda40f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:05:25, skipping insertion in model container [2024-11-19 00:05:25,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:05:25" (3/3) ... [2024-11-19 00:05:25,934 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-58.i [2024-11-19 00:05:25,946 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:05:25,946 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:05:26,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:05:26,016 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;@5a60505b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:05:26,016 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:05:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 203 states have (on average 1.5270935960591132) internal successors, (310), 204 states have internal predecessors, (310), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-19 00:05:26,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2024-11-19 00:05:26,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:26,055 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:26,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:26,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash -212499504, now seen corresponding path program 1 times [2024-11-19 00:05:26,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:26,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374432494] [2024-11-19 00:05:26,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:26,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 14450 trivial. 0 not checked. [2024-11-19 00:05:26,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:26,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374432494] [2024-11-19 00:05:26,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374432494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:05:26,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922996657] [2024-11-19 00:05:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:26,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:05:26,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:05:26,640 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 00:05:26,641 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 00:05:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:26,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:05:26,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:05:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 14450 trivial. 0 not checked. [2024-11-19 00:05:27,061 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:05:27,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922996657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:27,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:05:27,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:05:27,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241464524] [2024-11-19 00:05:27,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:27,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:05:27,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:27,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:05:27,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:05:27,097 INFO L87 Difference]: Start difference. First operand has 292 states, 203 states have (on average 1.5270935960591132) internal successors, (310), 204 states have internal predecessors, (310), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) [2024-11-19 00:05:27,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:27,145 INFO L93 Difference]: Finished difference Result 577 states and 1044 transitions. [2024-11-19 00:05:27,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:05:27,149 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) Word has length 567 [2024-11-19 00:05:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:27,157 INFO L225 Difference]: With dead ends: 577 [2024-11-19 00:05:27,157 INFO L226 Difference]: Without dead ends: 288 [2024-11-19 00:05:27,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 568 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 00:05:27,164 INFO L432 NwaCegarLoop]: 475 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, 475 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 00:05:27,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:05:27,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-19 00:05:27,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-19 00:05:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 200 states have (on average 1.515) internal successors, (303), 200 states have internal predecessors, (303), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-19 00:05:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 475 transitions. [2024-11-19 00:05:27,245 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 475 transitions. Word has length 567 [2024-11-19 00:05:27,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:27,246 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 475 transitions. [2024-11-19 00:05:27,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) [2024-11-19 00:05:27,247 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 475 transitions. [2024-11-19 00:05:27,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2024-11-19 00:05:27,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:27,259 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:27,276 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 00:05:27,463 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 00:05:27,464 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:27,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1958134824, now seen corresponding path program 1 times [2024-11-19 00:05:27,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:27,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329574002] [2024-11-19 00:05:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:27,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:27,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:27,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329574002] [2024-11-19 00:05:27,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329574002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:27,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:27,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:05:27,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456845258] [2024-11-19 00:05:27,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:27,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:05:27,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:27,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:05:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:05:27,981 INFO L87 Difference]: Start difference. First operand 288 states and 475 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:28,092 INFO L93 Difference]: Finished difference Result 762 states and 1258 transitions. [2024-11-19 00:05:28,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:05:28,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 567 [2024-11-19 00:05:28,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:28,100 INFO L225 Difference]: With dead ends: 762 [2024-11-19 00:05:28,100 INFO L226 Difference]: Without dead ends: 477 [2024-11-19 00:05:28,102 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 00:05:28,103 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 286 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:28,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1176 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:05:28,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-19 00:05:28,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 474. [2024-11-19 00:05:28,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 361 states have (on average 1.551246537396122) internal successors, (560), 362 states have internal predecessors, (560), 110 states have call successors, (110), 2 states have call predecessors, (110), 2 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-19 00:05:28,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 780 transitions. [2024-11-19 00:05:28,149 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 780 transitions. Word has length 567 [2024-11-19 00:05:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:28,152 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 780 transitions. [2024-11-19 00:05:28,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 780 transitions. [2024-11-19 00:05:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2024-11-19 00:05:28,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:28,159 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:28,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:05:28,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:28,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:28,160 INFO L85 PathProgramCache]: Analyzing trace with hash -575662420, now seen corresponding path program 1 times [2024-11-19 00:05:28,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:28,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721321223] [2024-11-19 00:05:28,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:28,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:28,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:28,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721321223] [2024-11-19 00:05:28,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721321223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:28,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:28,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:05:28,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850705331] [2024-11-19 00:05:28,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:28,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:05:28,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:28,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:05:28,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:05:28,461 INFO L87 Difference]: Start difference. First operand 474 states and 780 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:28,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:28,537 INFO L93 Difference]: Finished difference Result 1416 states and 2334 transitions. [2024-11-19 00:05:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:05:28,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 567 [2024-11-19 00:05:28,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:28,549 INFO L225 Difference]: With dead ends: 1416 [2024-11-19 00:05:28,549 INFO L226 Difference]: Without dead ends: 945 [2024-11-19 00:05:28,551 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 00:05:28,552 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 469 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:28,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 934 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:05:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-19 00:05:28,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 943. [2024-11-19 00:05:28,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 718 states have (on average 1.5459610027855153) internal successors, (1110), 720 states have internal predecessors, (1110), 220 states have call successors, (220), 4 states have call predecessors, (220), 4 states have return successors, (220), 218 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-19 00:05:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1550 transitions. [2024-11-19 00:05:28,664 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1550 transitions. Word has length 567 [2024-11-19 00:05:28,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:28,665 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1550 transitions. [2024-11-19 00:05:28,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1550 transitions. [2024-11-19 00:05:28,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2024-11-19 00:05:28,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:28,671 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:28,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:05:28,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:28,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:28,672 INFO L85 PathProgramCache]: Analyzing trace with hash -970029206, now seen corresponding path program 1 times [2024-11-19 00:05:28,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:28,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348751427] [2024-11-19 00:05:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:28,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:28,959 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:28,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:28,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348751427] [2024-11-19 00:05:28,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348751427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:28,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:28,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:05:28,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157581372] [2024-11-19 00:05:28,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:28,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:05:28,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:28,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:05:28,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:05:28,962 INFO L87 Difference]: Start difference. First operand 943 states and 1550 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:29,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:29,075 INFO L93 Difference]: Finished difference Result 2567 states and 4204 transitions. [2024-11-19 00:05:29,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:05:29,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 567 [2024-11-19 00:05:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:29,086 INFO L225 Difference]: With dead ends: 2567 [2024-11-19 00:05:29,086 INFO L226 Difference]: Without dead ends: 1627 [2024-11-19 00:05:29,089 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 00:05:29,090 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 270 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:29,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 1069 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:05:29,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-11-19 00:05:29,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1621. [2024-11-19 00:05:29,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1312 states have (on average 1.5518292682926829) internal successors, (2036), 1318 states have internal predecessors, (2036), 300 states have call successors, (300), 8 states have call predecessors, (300), 8 states have return successors, (300), 294 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-19 00:05:29,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2636 transitions. [2024-11-19 00:05:29,205 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2636 transitions. Word has length 567 [2024-11-19 00:05:29,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:29,207 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 2636 transitions. [2024-11-19 00:05:29,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:29,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2636 transitions. [2024-11-19 00:05:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-19 00:05:29,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:29,214 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:29,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:05:29,216 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:29,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:29,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1644676373, now seen corresponding path program 1 times [2024-11-19 00:05:29,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:29,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708920875] [2024-11-19 00:05:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:29,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:29,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:29,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708920875] [2024-11-19 00:05:29,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708920875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:29,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:29,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:05:29,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498200059] [2024-11-19 00:05:29,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:29,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:05:29,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:05:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:05:29,825 INFO L87 Difference]: Start difference. First operand 1621 states and 2636 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:30,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:30,292 INFO L93 Difference]: Finished difference Result 4303 states and 7005 transitions. [2024-11-19 00:05:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:05:30,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 568 [2024-11-19 00:05:30,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:30,302 INFO L225 Difference]: With dead ends: 4303 [2024-11-19 00:05:30,303 INFO L226 Difference]: Without dead ends: 2685 [2024-11-19 00:05:30,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 00:05:30,306 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 445 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:30,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1726 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:05:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2024-11-19 00:05:30,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2299. [2024-11-19 00:05:30,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1903 states have (on average 1.5843405149763532) internal successors, (3015), 1909 states have internal predecessors, (3015), 386 states have call successors, (386), 9 states have call predecessors, (386), 9 states have return successors, (386), 380 states have call predecessors, (386), 386 states have call successors, (386) [2024-11-19 00:05:30,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3787 transitions. [2024-11-19 00:05:30,404 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3787 transitions. Word has length 568 [2024-11-19 00:05:30,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:30,405 INFO L471 AbstractCegarLoop]: Abstraction has 2299 states and 3787 transitions. [2024-11-19 00:05:30,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3787 transitions. [2024-11-19 00:05:30,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-19 00:05:30,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:30,409 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:30,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:05:30,410 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:30,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash 656146217, now seen corresponding path program 1 times [2024-11-19 00:05:30,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:30,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734877681] [2024-11-19 00:05:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:30,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:32,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:32,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734877681] [2024-11-19 00:05:32,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734877681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:32,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:32,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:05:32,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020212228] [2024-11-19 00:05:32,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:32,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:05:32,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:32,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:05:32,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:05:32,057 INFO L87 Difference]: Start difference. First operand 2299 states and 3787 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:32,696 INFO L93 Difference]: Finished difference Result 7845 states and 12769 transitions. [2024-11-19 00:05:32,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:05:32,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 568 [2024-11-19 00:05:32,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:32,722 INFO L225 Difference]: With dead ends: 7845 [2024-11-19 00:05:32,722 INFO L226 Difference]: Without dead ends: 5951 [2024-11-19 00:05:32,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:05:32,729 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 908 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:32,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 2202 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:05:32,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2024-11-19 00:05:32,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 3673. [2024-11-19 00:05:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3673 states, 3277 states have (on average 1.6335062557216966) internal successors, (5353), 3283 states have internal predecessors, (5353), 386 states have call successors, (386), 9 states have call predecessors, (386), 9 states have return successors, (386), 380 states have call predecessors, (386), 386 states have call successors, (386) [2024-11-19 00:05:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3673 states to 3673 states and 6125 transitions. [2024-11-19 00:05:32,891 INFO L78 Accepts]: Start accepts. Automaton has 3673 states and 6125 transitions. Word has length 568 [2024-11-19 00:05:32,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:32,892 INFO L471 AbstractCegarLoop]: Abstraction has 3673 states and 6125 transitions. [2024-11-19 00:05:32,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 6125 transitions. [2024-11-19 00:05:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-19 00:05:32,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:32,898 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:32,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:05:32,898 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:32,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:32,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1601839787, now seen corresponding path program 1 times [2024-11-19 00:05:32,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:32,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442812684] [2024-11-19 00:05:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:34,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:34,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442812684] [2024-11-19 00:05:34,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442812684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:34,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:34,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:05:34,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267290800] [2024-11-19 00:05:34,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:34,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:05:34,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:34,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:05:34,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:05:34,357 INFO L87 Difference]: Start difference. First operand 3673 states and 6125 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:35,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:35,230 INFO L93 Difference]: Finished difference Result 8506 states and 14072 transitions. [2024-11-19 00:05:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:05:35,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 568 [2024-11-19 00:05:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:35,252 INFO L225 Difference]: With dead ends: 8506 [2024-11-19 00:05:35,253 INFO L226 Difference]: Without dead ends: 5325 [2024-11-19 00:05:35,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:05:35,261 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 1559 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:35,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 2252 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:05:35,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5325 states. [2024-11-19 00:05:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5325 to 3346. [2024-11-19 00:05:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 3039 states have (on average 1.6429746627179993) internal successors, (4993), 3041 states have internal predecessors, (4993), 298 states have call successors, (298), 8 states have call predecessors, (298), 8 states have return successors, (298), 296 states have call predecessors, (298), 298 states have call successors, (298) [2024-11-19 00:05:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 5589 transitions. [2024-11-19 00:05:35,400 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 5589 transitions. Word has length 568 [2024-11-19 00:05:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:35,401 INFO L471 AbstractCegarLoop]: Abstraction has 3346 states and 5589 transitions. [2024-11-19 00:05:35,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 5589 transitions. [2024-11-19 00:05:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-19 00:05:35,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:35,406 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:35,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:05:35,406 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:35,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:35,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1867004523, now seen corresponding path program 1 times [2024-11-19 00:05:35,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:35,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913303325] [2024-11-19 00:05:35,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:35,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:36,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:36,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913303325] [2024-11-19 00:05:36,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913303325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:36,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:36,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:05:36,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517486003] [2024-11-19 00:05:36,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:36,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:05:36,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:36,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:05:36,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:05:36,141 INFO L87 Difference]: Start difference. First operand 3346 states and 5589 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:36,500 INFO L93 Difference]: Finished difference Result 9084 states and 15201 transitions. [2024-11-19 00:05:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:05:36,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 568 [2024-11-19 00:05:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:36,532 INFO L225 Difference]: With dead ends: 9084 [2024-11-19 00:05:36,532 INFO L226 Difference]: Without dead ends: 6222 [2024-11-19 00:05:36,540 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 00:05:36,540 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 454 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:36,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1539 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:05:36,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6222 states. [2024-11-19 00:05:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6222 to 3628. [2024-11-19 00:05:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3321 states have (on average 1.637157482685938) internal successors, (5437), 3323 states have internal predecessors, (5437), 298 states have call successors, (298), 8 states have call predecessors, (298), 8 states have return successors, (298), 296 states have call predecessors, (298), 298 states have call successors, (298) [2024-11-19 00:05:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 6033 transitions. [2024-11-19 00:05:36,683 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 6033 transitions. Word has length 568 [2024-11-19 00:05:36,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:36,684 INFO L471 AbstractCegarLoop]: Abstraction has 3628 states and 6033 transitions. [2024-11-19 00:05:36,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 6033 transitions. [2024-11-19 00:05:36,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-19 00:05:36,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:36,688 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:36,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:05:36,689 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:36,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1867262995, now seen corresponding path program 1 times [2024-11-19 00:05:36,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:36,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019385561] [2024-11-19 00:05:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:38,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:38,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019385561] [2024-11-19 00:05:38,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019385561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:38,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:38,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:05:38,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410100773] [2024-11-19 00:05:38,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:38,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:05:38,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:38,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:05:38,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:05:38,494 INFO L87 Difference]: Start difference. First operand 3628 states and 6033 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:38,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:38,781 INFO L93 Difference]: Finished difference Result 5864 states and 9733 transitions. [2024-11-19 00:05:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:05:38,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 568 [2024-11-19 00:05:38,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:38,794 INFO L225 Difference]: With dead ends: 5864 [2024-11-19 00:05:38,795 INFO L226 Difference]: Without dead ends: 2911 [2024-11-19 00:05:38,800 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 00:05:38,800 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 292 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:38,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1239 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:05:38,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2024-11-19 00:05:38,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2911. [2024-11-19 00:05:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2602 states have (on average 1.622598001537279) internal successors, (4222), 2604 states have internal predecessors, (4222), 298 states have call successors, (298), 10 states have call predecessors, (298), 10 states have return successors, (298), 296 states have call predecessors, (298), 298 states have call successors, (298) [2024-11-19 00:05:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4818 transitions. [2024-11-19 00:05:38,912 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4818 transitions. Word has length 568 [2024-11-19 00:05:38,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:38,912 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4818 transitions. [2024-11-19 00:05:38,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4818 transitions. [2024-11-19 00:05:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-19 00:05:38,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:38,921 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:38,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:05:38,921 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:38,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1430572139, now seen corresponding path program 1 times [2024-11-19 00:05:38,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:38,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961328899] [2024-11-19 00:05:38,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:38,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:40,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:40,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961328899] [2024-11-19 00:05:40,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961328899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:40,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:40,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:05:40,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240821172] [2024-11-19 00:05:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:40,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:05:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:40,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:05:40,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:05:40,211 INFO L87 Difference]: Start difference. First operand 2911 states and 4818 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:41,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:41,287 INFO L93 Difference]: Finished difference Result 7716 states and 12669 transitions. [2024-11-19 00:05:41,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:05:41,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 568 [2024-11-19 00:05:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:41,305 INFO L225 Difference]: With dead ends: 7716 [2024-11-19 00:05:41,305 INFO L226 Difference]: Without dead ends: 5664 [2024-11-19 00:05:41,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:05:41,311 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 1403 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:41,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 2561 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:05:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5664 states. [2024-11-19 00:05:41,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5664 to 4500. [2024-11-19 00:05:41,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4500 states, 4139 states have (on average 1.6308287025851655) internal successors, (6750), 4143 states have internal predecessors, (6750), 346 states have call successors, (346), 14 states have call predecessors, (346), 14 states have return successors, (346), 342 states have call predecessors, (346), 346 states have call successors, (346) [2024-11-19 00:05:41,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4500 states to 4500 states and 7442 transitions. [2024-11-19 00:05:41,478 INFO L78 Accepts]: Start accepts. Automaton has 4500 states and 7442 transitions. Word has length 568 [2024-11-19 00:05:41,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:41,479 INFO L471 AbstractCegarLoop]: Abstraction has 4500 states and 7442 transitions. [2024-11-19 00:05:41,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:41,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4500 states and 7442 transitions. [2024-11-19 00:05:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-19 00:05:41,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:41,486 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:41,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:05:41,487 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:41,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:41,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1695736875, now seen corresponding path program 1 times [2024-11-19 00:05:41,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:41,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627364562] [2024-11-19 00:05:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:41,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:42,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:42,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627364562] [2024-11-19 00:05:42,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627364562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:42,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:42,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:05:42,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580959583] [2024-11-19 00:05:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:42,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:05:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:05:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:05:42,871 INFO L87 Difference]: Start difference. First operand 4500 states and 7442 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:43,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:43,175 INFO L93 Difference]: Finished difference Result 9773 states and 16068 transitions. [2024-11-19 00:05:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:05:43,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 568 [2024-11-19 00:05:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:43,190 INFO L225 Difference]: With dead ends: 9773 [2024-11-19 00:05:43,190 INFO L226 Difference]: Without dead ends: 6761 [2024-11-19 00:05:43,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 00:05:43,197 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 324 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:43,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1653 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:05:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6761 states. [2024-11-19 00:05:43,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6761 to 6299. [2024-11-19 00:05:43,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6299 states, 5801 states have (on average 1.6238579555249095) internal successors, (9420), 5811 states have internal predecessors, (9420), 474 states have call successors, (474), 23 states have call predecessors, (474), 23 states have return successors, (474), 464 states have call predecessors, (474), 474 states have call successors, (474) [2024-11-19 00:05:43,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6299 states to 6299 states and 10368 transitions. [2024-11-19 00:05:43,407 INFO L78 Accepts]: Start accepts. Automaton has 6299 states and 10368 transitions. Word has length 568 [2024-11-19 00:05:43,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:43,408 INFO L471 AbstractCegarLoop]: Abstraction has 6299 states and 10368 transitions. [2024-11-19 00:05:43,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:43,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6299 states and 10368 transitions. [2024-11-19 00:05:43,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-19 00:05:43,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:43,415 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:43,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:05:43,415 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:43,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash 504121012, now seen corresponding path program 1 times [2024-11-19 00:05:43,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:43,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416511721] [2024-11-19 00:05:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:43,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 15 proven. 240 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:05:46,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:46,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416511721] [2024-11-19 00:05:46,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416511721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:05:46,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612486313] [2024-11-19 00:05:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:46,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:05:46,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:05:46,010 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 00:05:46,011 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 00:05:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:46,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 00:05:46,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:05:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 8399 proven. 240 refuted. 0 times theorem prover too weak. 5981 trivial. 0 not checked. [2024-11-19 00:05:48,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:05:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 15 proven. 240 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:05:48,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612486313] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:05:48,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:05:48,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2024-11-19 00:05:48,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869962680] [2024-11-19 00:05:48,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:05:48,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:05:48,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:48,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:05:48,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:05:48,846 INFO L87 Difference]: Start difference. First operand 6299 states and 10368 transitions. Second operand has 15 states, 15 states have (on average 20.066666666666666) internal successors, (301), 15 states have internal predecessors, (301), 10 states have call successors, (246), 4 states have call predecessors, (246), 6 states have return successors, (247), 10 states have call predecessors, (247), 10 states have call successors, (247) [2024-11-19 00:05:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:49,778 INFO L93 Difference]: Finished difference Result 12104 states and 19774 transitions. [2024-11-19 00:05:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 00:05:49,779 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 20.066666666666666) internal successors, (301), 15 states have internal predecessors, (301), 10 states have call successors, (246), 4 states have call predecessors, (246), 6 states have return successors, (247), 10 states have call predecessors, (247), 10 states have call successors, (247) Word has length 569 [2024-11-19 00:05:49,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:49,795 INFO L225 Difference]: With dead ends: 12104 [2024-11-19 00:05:49,795 INFO L226 Difference]: Without dead ends: 6417 [2024-11-19 00:05:49,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 1131 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2024-11-19 00:05:49,805 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 633 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:49,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 950 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:05:49,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6417 states. [2024-11-19 00:05:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6417 to 6373. [2024-11-19 00:05:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6373 states, 5843 states have (on average 1.605510867704946) internal successors, (9381), 5853 states have internal predecessors, (9381), 474 states have call successors, (474), 55 states have call predecessors, (474), 55 states have return successors, (474), 464 states have call predecessors, (474), 474 states have call successors, (474) [2024-11-19 00:05:50,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6373 states to 6373 states and 10329 transitions. [2024-11-19 00:05:50,026 INFO L78 Accepts]: Start accepts. Automaton has 6373 states and 10329 transitions. Word has length 569 [2024-11-19 00:05:50,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:50,027 INFO L471 AbstractCegarLoop]: Abstraction has 6373 states and 10329 transitions. [2024-11-19 00:05:50,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 20.066666666666666) internal successors, (301), 15 states have internal predecessors, (301), 10 states have call successors, (246), 4 states have call predecessors, (246), 6 states have return successors, (247), 10 states have call predecessors, (247), 10 states have call successors, (247) [2024-11-19 00:05:50,028 INFO L276 IsEmpty]: Start isEmpty. Operand 6373 states and 10329 transitions. [2024-11-19 00:05:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-19 00:05:50,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:50,034 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:50,051 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 00:05:50,238 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,SelfDestructingSolverStorable11 [2024-11-19 00:05:50,240 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:50,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:50,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1918008828, now seen corresponding path program 1 times [2024-11-19 00:05:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:50,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911241808] [2024-11-19 00:05:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:50,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 60 proven. 195 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:05:52,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:52,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911241808] [2024-11-19 00:05:52,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911241808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:05:52,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828209010] [2024-11-19 00:05:52,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:52,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:05:52,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:05:52,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:05:52,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:05:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:53,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 00:05:53,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:05:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 6403 proven. 174 refuted. 0 times theorem prover too weak. 8043 trivial. 0 not checked. [2024-11-19 00:05:53,519 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:05:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 81 proven. 174 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:05:53,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828209010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:05:53,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:05:53,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-19 00:05:53,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035664717] [2024-11-19 00:05:53,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:05:53,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:05:53,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:53,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:05:53,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:05:53,897 INFO L87 Difference]: Start difference. First operand 6373 states and 10329 transitions. Second operand has 8 states, 8 states have (on average 28.625) internal successors, (229), 8 states have internal predecessors, (229), 3 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (211), 3 states have call predecessors, (211), 3 states have call successors, (211) [2024-11-19 00:05:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:54,525 INFO L93 Difference]: Finished difference Result 10707 states and 17264 transitions. [2024-11-19 00:05:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:05:54,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.625) internal successors, (229), 8 states have internal predecessors, (229), 3 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (211), 3 states have call predecessors, (211), 3 states have call successors, (211) Word has length 569 [2024-11-19 00:05:54,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:54,543 INFO L225 Difference]: With dead ends: 10707 [2024-11-19 00:05:54,543 INFO L226 Difference]: Without dead ends: 4598 [2024-11-19 00:05:54,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1151 GetRequests, 1135 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:05:54,553 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 659 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:54,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 872 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:05:54,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2024-11-19 00:05:54,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4200. [2024-11-19 00:05:54,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4200 states, 3658 states have (on average 1.5125751776927283) internal successors, (5533), 3668 states have internal predecessors, (5533), 474 states have call successors, (474), 67 states have call predecessors, (474), 67 states have return successors, (474), 464 states have call predecessors, (474), 474 states have call successors, (474) [2024-11-19 00:05:54,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4200 states to 4200 states and 6481 transitions. [2024-11-19 00:05:54,761 INFO L78 Accepts]: Start accepts. Automaton has 4200 states and 6481 transitions. Word has length 569 [2024-11-19 00:05:54,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:54,762 INFO L471 AbstractCegarLoop]: Abstraction has 4200 states and 6481 transitions. [2024-11-19 00:05:54,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.625) internal successors, (229), 8 states have internal predecessors, (229), 3 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (211), 3 states have call predecessors, (211), 3 states have call successors, (211) [2024-11-19 00:05:54,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4200 states and 6481 transitions. [2024-11-19 00:05:54,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-19 00:05:54,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:54,767 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:54,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 00:05:54,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:05:54,968 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:54,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash -465885855, now seen corresponding path program 1 times [2024-11-19 00:05:54,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:54,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287350716] [2024-11-19 00:05:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:56,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:56,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287350716] [2024-11-19 00:05:56,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287350716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:56,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:56,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:05:56,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201474056] [2024-11-19 00:05:56,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:56,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:05:56,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:56,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:05:56,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:05:56,002 INFO L87 Difference]: Start difference. First operand 4200 states and 6481 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:56,406 INFO L93 Difference]: Finished difference Result 9207 states and 14090 transitions. [2024-11-19 00:05:56,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:05:56,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 569 [2024-11-19 00:05:56,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:56,424 INFO L225 Difference]: With dead ends: 9207 [2024-11-19 00:05:56,424 INFO L226 Difference]: Without dead ends: 5380 [2024-11-19 00:05:56,431 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 00:05:56,432 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 439 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:56,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1208 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:05:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2024-11-19 00:05:56,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 4200. [2024-11-19 00:05:56,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4200 states, 3658 states have (on average 1.5084745762711864) internal successors, (5518), 3668 states have internal predecessors, (5518), 474 states have call successors, (474), 67 states have call predecessors, (474), 67 states have return successors, (474), 464 states have call predecessors, (474), 474 states have call successors, (474) [2024-11-19 00:05:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4200 states to 4200 states and 6466 transitions. [2024-11-19 00:05:56,653 INFO L78 Accepts]: Start accepts. Automaton has 4200 states and 6466 transitions. Word has length 569 [2024-11-19 00:05:56,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:56,654 INFO L471 AbstractCegarLoop]: Abstraction has 4200 states and 6466 transitions. [2024-11-19 00:05:56,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4200 states and 6466 transitions. [2024-11-19 00:05:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-19 00:05:56,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:56,660 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:56,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:05:56,660 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:56,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:56,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1100872095, now seen corresponding path program 1 times [2024-11-19 00:05:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:56,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236608848] [2024-11-19 00:05:56,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:56,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:57,479 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2024-11-19 00:05:57,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:05:57,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236608848] [2024-11-19 00:05:57,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236608848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:05:57,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:05:57,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:05:57,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078927071] [2024-11-19 00:05:57,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:05:57,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:05:57,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:05:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:05:57,481 INFO L87 Difference]: Start difference. First operand 4200 states and 6466 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:58,768 INFO L93 Difference]: Finished difference Result 10346 states and 15654 transitions. [2024-11-19 00:05:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:05:58,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 569 [2024-11-19 00:05:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:58,787 INFO L225 Difference]: With dead ends: 10346 [2024-11-19 00:05:58,787 INFO L226 Difference]: Without dead ends: 7270 [2024-11-19 00:05:58,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:05:58,796 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 1036 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:58,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 1578 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 00:05:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7270 states. [2024-11-19 00:05:59,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7270 to 4540. [2024-11-19 00:05:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4540 states, 3998 states have (on average 1.4927463731865933) internal successors, (5968), 4008 states have internal predecessors, (5968), 474 states have call successors, (474), 67 states have call predecessors, (474), 67 states have return successors, (474), 464 states have call predecessors, (474), 474 states have call successors, (474) [2024-11-19 00:05:59,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 6916 transitions. [2024-11-19 00:05:59,125 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 6916 transitions. Word has length 569 [2024-11-19 00:05:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:59,126 INFO L471 AbstractCegarLoop]: Abstraction has 4540 states and 6916 transitions. [2024-11-19 00:05:59,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-19 00:05:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 6916 transitions. [2024-11-19 00:05:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2024-11-19 00:05:59,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:59,131 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:59,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:05:59,132 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:59,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash -275322887, now seen corresponding path program 1 times [2024-11-19 00:05:59,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:59,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400742863] [2024-11-19 00:05:59,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:59,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 90 proven. 165 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:06:00,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:00,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400742863] [2024-11-19 00:06:00,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400742863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:06:00,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850323682] [2024-11-19 00:06:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:00,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:06:00,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:06:00,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:06:00,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 00:06:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:00,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 00:06:00,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:06:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7213 proven. 147 refuted. 0 times theorem prover too weak. 7260 trivial. 0 not checked. [2024-11-19 00:06:01,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:06:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 108 proven. 147 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:06:01,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850323682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:06:01,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:06:01,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 14 [2024-11-19 00:06:01,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451455607] [2024-11-19 00:06:01,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:06:01,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 00:06:01,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:01,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 00:06:01,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:06:01,779 INFO L87 Difference]: Start difference. First operand 4540 states and 6916 transitions. Second operand has 14 states, 14 states have (on average 20.714285714285715) internal successors, (290), 14 states have internal predecessors, (290), 5 states have call successors, (221), 2 states have call predecessors, (221), 4 states have return successors, (222), 5 states have call predecessors, (222), 5 states have call successors, (222) [2024-11-19 00:06:02,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:02,859 INFO L93 Difference]: Finished difference Result 8932 states and 13569 transitions. [2024-11-19 00:06:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:06:02,861 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.714285714285715) internal successors, (290), 14 states have internal predecessors, (290), 5 states have call successors, (221), 2 states have call predecessors, (221), 4 states have return successors, (222), 5 states have call predecessors, (222), 5 states have call successors, (222) Word has length 570 [2024-11-19 00:06:02,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:02,873 INFO L225 Difference]: With dead ends: 8932 [2024-11-19 00:06:02,873 INFO L226 Difference]: Without dead ends: 4602 [2024-11-19 00:06:02,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1160 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2024-11-19 00:06:02,880 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 1214 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:02,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 1773 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:06:02,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2024-11-19 00:06:03,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4552. [2024-11-19 00:06:03,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4552 states, 4004 states have (on average 1.466033966033966) internal successors, (5870), 4014 states have internal predecessors, (5870), 474 states have call successors, (474), 73 states have call predecessors, (474), 73 states have return successors, (474), 464 states have call predecessors, (474), 474 states have call successors, (474) [2024-11-19 00:06:03,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4552 states to 4552 states and 6818 transitions. [2024-11-19 00:06:03,237 INFO L78 Accepts]: Start accepts. Automaton has 4552 states and 6818 transitions. Word has length 570 [2024-11-19 00:06:03,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:03,238 INFO L471 AbstractCegarLoop]: Abstraction has 4552 states and 6818 transitions. [2024-11-19 00:06:03,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.714285714285715) internal successors, (290), 14 states have internal predecessors, (290), 5 states have call successors, (221), 2 states have call predecessors, (221), 4 states have return successors, (222), 5 states have call predecessors, (222), 5 states have call successors, (222) [2024-11-19 00:06:03,238 INFO L276 IsEmpty]: Start isEmpty. Operand 4552 states and 6818 transitions. [2024-11-19 00:06:03,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2024-11-19 00:06:03,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:03,246 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:03,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 00:06:03,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 00:06:03,447 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:03,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:03,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2117800829, now seen corresponding path program 1 times [2024-11-19 00:06:03,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:03,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275863376] [2024-11-19 00:06:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:03,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 219 proven. 36 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:06:05,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:05,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275863376] [2024-11-19 00:06:05,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275863376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:06:05,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632272734] [2024-11-19 00:06:05,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:05,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:06:05,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:06:05,408 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:06:05,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 00:06:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:05,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 00:06:05,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:06:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 1543 proven. 12 refuted. 0 times theorem prover too weak. 13065 trivial. 0 not checked. [2024-11-19 00:06:06,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:06:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 243 proven. 12 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:06:06,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632272734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:06:06,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:06:06,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 16 [2024-11-19 00:06:06,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746158795] [2024-11-19 00:06:06,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:06:06,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:06:06,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:06,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:06:06,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:06:06,703 INFO L87 Difference]: Start difference. First operand 4552 states and 6818 transitions. Second operand has 16 states, 16 states have (on average 21.0) internal successors, (336), 16 states have internal predecessors, (336), 5 states have call successors, (184), 3 states have call predecessors, (184), 6 states have return successors, (185), 5 states have call predecessors, (185), 5 states have call successors, (185) [2024-11-19 00:06:12,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:12,893 INFO L93 Difference]: Finished difference Result 24036 states and 35248 transitions. [2024-11-19 00:06:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2024-11-19 00:06:12,893 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 21.0) internal successors, (336), 16 states have internal predecessors, (336), 5 states have call successors, (184), 3 states have call predecessors, (184), 6 states have return successors, (185), 5 states have call predecessors, (185), 5 states have call successors, (185) Word has length 570 [2024-11-19 00:06:12,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:12,934 INFO L225 Difference]: With dead ends: 24036 [2024-11-19 00:06:12,934 INFO L226 Difference]: Without dead ends: 19834 [2024-11-19 00:06:12,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1250 GetRequests, 1145 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4556 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1984, Invalid=9358, Unknown=0, NotChecked=0, Total=11342 [2024-11-19 00:06:12,944 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 6108 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 3875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6188 SdHoareTripleChecker+Valid, 4073 SdHoareTripleChecker+Invalid, 7084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3875 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:12,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6188 Valid, 4073 Invalid, 7084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3875 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-19 00:06:12,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19834 states. [2024-11-19 00:06:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19834 to 17688. [2024-11-19 00:06:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17688 states, 14653 states have (on average 1.4125435064491914) internal successors, (20698), 14719 states have internal predecessors, (20698), 2594 states have call successors, (2594), 440 states have call predecessors, (2594), 440 states have return successors, (2594), 2528 states have call predecessors, (2594), 2594 states have call successors, (2594) [2024-11-19 00:06:14,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17688 states to 17688 states and 25886 transitions. [2024-11-19 00:06:14,595 INFO L78 Accepts]: Start accepts. Automaton has 17688 states and 25886 transitions. Word has length 570 [2024-11-19 00:06:14,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:14,596 INFO L471 AbstractCegarLoop]: Abstraction has 17688 states and 25886 transitions. [2024-11-19 00:06:14,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 21.0) internal successors, (336), 16 states have internal predecessors, (336), 5 states have call successors, (184), 3 states have call predecessors, (184), 6 states have return successors, (185), 5 states have call predecessors, (185), 5 states have call successors, (185) [2024-11-19 00:06:14,596 INFO L276 IsEmpty]: Start isEmpty. Operand 17688 states and 25886 transitions. [2024-11-19 00:06:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2024-11-19 00:06:14,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:14,603 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:14,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 00:06:14,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 00:06:14,805 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:14,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:14,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1389643519, now seen corresponding path program 1 times [2024-11-19 00:06:14,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:14,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724906320] [2024-11-19 00:06:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:14,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 69 proven. 186 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:06:16,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:16,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724906320] [2024-11-19 00:06:16,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724906320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:06:16,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084649383] [2024-11-19 00:06:16,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:16,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:06:16,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:06:16,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:06:16,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 00:06:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:17,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 1331 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 00:06:17,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:06:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 5835 proven. 186 refuted. 0 times theorem prover too weak. 8599 trivial. 0 not checked. [2024-11-19 00:06:17,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:06:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 69 proven. 186 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2024-11-19 00:06:18,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084649383] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:06:18,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:06:18,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-11-19 00:06:18,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811158059] [2024-11-19 00:06:18,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:06:18,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:06:18,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:18,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:06:18,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:06:18,161 INFO L87 Difference]: Start difference. First operand 17688 states and 25886 transitions. Second operand has 8 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 2 states have call successors, (148), 2 states have call predecessors, (148), 4 states have return successors, (149), 2 states have call predecessors, (149), 2 states have call successors, (149) [2024-11-19 00:06:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:20,099 INFO L93 Difference]: Finished difference Result 33254 states and 48289 transitions. [2024-11-19 00:06:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:06:20,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 2 states have call successors, (148), 2 states have call predecessors, (148), 4 states have return successors, (149), 2 states have call predecessors, (149), 2 states have call successors, (149) Word has length 571 [2024-11-19 00:06:20,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:20,157 INFO L225 Difference]: With dead ends: 33254 [2024-11-19 00:06:20,157 INFO L226 Difference]: Without dead ends: 18118 [2024-11-19 00:06:20,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1151 GetRequests, 1137 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:06:20,184 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 190 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:20,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1217 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:06:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18118 states. [2024-11-19 00:06:21,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18118 to 11782. [2024-11-19 00:06:21,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11782 states, 9709 states have (on average 1.40611803481306) internal successors, (13652), 9737 states have internal predecessors, (13652), 1766 states have call successors, (1766), 306 states have call predecessors, (1766), 306 states have return successors, (1766), 1738 states have call predecessors, (1766), 1766 states have call successors, (1766) [2024-11-19 00:06:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11782 states to 11782 states and 17184 transitions. [2024-11-19 00:06:21,452 INFO L78 Accepts]: Start accepts. Automaton has 11782 states and 17184 transitions. Word has length 571 [2024-11-19 00:06:21,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:21,453 INFO L471 AbstractCegarLoop]: Abstraction has 11782 states and 17184 transitions. [2024-11-19 00:06:21,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 2 states have call successors, (148), 2 states have call predecessors, (148), 4 states have return successors, (149), 2 states have call predecessors, (149), 2 states have call successors, (149) [2024-11-19 00:06:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 11782 states and 17184 transitions. [2024-11-19 00:06:21,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2024-11-19 00:06:21,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:21,459 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:21,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 00:06:21,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 00:06:21,661 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:21,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:21,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1055277259, now seen corresponding path program 1 times [2024-11-19 00:06:21,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:21,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343354203] [2024-11-19 00:06:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:21,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:06:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 243 proven. 261 refuted. 0 times theorem prover too weak. 14116 trivial. 0 not checked. [2024-11-19 00:06:24,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:06:24,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343354203] [2024-11-19 00:06:24,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343354203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:06:24,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156365799] [2024-11-19 00:06:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:24,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:06:24,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:06:24,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:06:24,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 00:06:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:06:25,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 00:06:25,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:06:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 8007 proven. 723 refuted. 0 times theorem prover too weak. 5890 trivial. 0 not checked. [2024-11-19 00:06:26,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:06:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 372 proven. 384 refuted. 0 times theorem prover too weak. 13864 trivial. 0 not checked. [2024-11-19 00:06:27,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156365799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:06:27,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:06:27,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 12] total 28 [2024-11-19 00:06:27,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932324683] [2024-11-19 00:06:27,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:06:27,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 00:06:27,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:06:27,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 00:06:27,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2024-11-19 00:06:27,521 INFO L87 Difference]: Start difference. First operand 11782 states and 17184 transitions. Second operand has 28 states, 26 states have (on average 11.192307692307692) internal successors, (291), 26 states have internal predecessors, (291), 10 states have call successors, (180), 5 states have call predecessors, (180), 10 states have return successors, (182), 9 states have call predecessors, (182), 10 states have call successors, (182) [2024-11-19 00:06:30,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:06:30,039 INFO L93 Difference]: Finished difference Result 28510 states and 41705 transitions. [2024-11-19 00:06:30,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 00:06:30,040 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 11.192307692307692) internal successors, (291), 26 states have internal predecessors, (291), 10 states have call successors, (180), 5 states have call predecessors, (180), 10 states have return successors, (182), 9 states have call predecessors, (182), 10 states have call successors, (182) Word has length 571 [2024-11-19 00:06:30,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:06:30,080 INFO L225 Difference]: With dead ends: 28510 [2024-11-19 00:06:30,080 INFO L226 Difference]: Without dead ends: 17214 [2024-11-19 00:06:30,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1166 GetRequests, 1127 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=466, Invalid=1174, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 00:06:30,097 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 917 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:06:30,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 3170 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 2063 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 00:06:30,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17214 states. [2024-11-19 00:06:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17214 to 12022. [2024-11-19 00:06:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12022 states, 9889 states have (on average 1.394074223885125) internal successors, (13786), 9917 states have internal predecessors, (13786), 1766 states have call successors, (1766), 366 states have call predecessors, (1766), 366 states have return successors, (1766), 1738 states have call predecessors, (1766), 1766 states have call successors, (1766) [2024-11-19 00:06:31,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12022 states to 12022 states and 17318 transitions. [2024-11-19 00:06:31,346 INFO L78 Accepts]: Start accepts. Automaton has 12022 states and 17318 transitions. Word has length 571 [2024-11-19 00:06:31,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:06:31,347 INFO L471 AbstractCegarLoop]: Abstraction has 12022 states and 17318 transitions. [2024-11-19 00:06:31,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 11.192307692307692) internal successors, (291), 26 states have internal predecessors, (291), 10 states have call successors, (180), 5 states have call predecessors, (180), 10 states have return successors, (182), 9 states have call predecessors, (182), 10 states have call successors, (182) [2024-11-19 00:06:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 12022 states and 17318 transitions. [2024-11-19 00:06:31,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2024-11-19 00:06:31,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:06:31,354 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:31,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 00:06:31,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:06:31,555 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:06:31,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:06:31,555 INFO L85 PathProgramCache]: Analyzing trace with hash -611376585, now seen corresponding path program 1 times [2024-11-19 00:06:31,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:06:31,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118825711] [2024-11-19 00:06:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:06:31,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms