./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-99.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_fillercode_fillercodesize_ps-cn-250_file-99.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 51679f677755cdcbe89cef639d9e0fff08a3a1c877b6770e3f1b1827d281f800 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:37:57,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:37:58,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:37:58,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:37:58,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:37:58,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:37:58,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:37:58,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:37:58,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:37:58,065 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:37:58,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:37:58,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:37:58,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:37:58,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:37:58,070 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:37:58,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:37:58,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:37:58,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:37:58,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:37:58,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:37:58,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:37:58,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:37:58,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:37:58,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:37:58,076 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:37:58,076 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:37:58,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:37:58,077 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:37:58,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:37:58,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:37:58,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:37:58,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:37:58,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:37:58,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:37:58,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:37:58,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:37:58,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:37:58,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:37:58,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:37:58,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:37:58,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:37:58,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:37:58,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51679f677755cdcbe89cef639d9e0fff08a3a1c877b6770e3f1b1827d281f800 [2024-11-18 19:37:58,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:37:58,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:37:58,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:37:58,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:37:58,380 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:37:58,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-99.i [2024-11-18 19:37:59,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:38:00,142 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:38:00,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-99.i [2024-11-18 19:38:00,154 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00473fcf2/971b4139ca5641bcbbf0395fd13fea5b/FLAG05df621af [2024-11-18 19:38:00,168 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00473fcf2/971b4139ca5641bcbbf0395fd13fea5b [2024-11-18 19:38:00,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:38:00,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:38:00,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:38:00,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:38:00,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:38:00,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1f5532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00, skipping insertion in model container [2024-11-18 19:38:00,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:38:00,391 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_fillercode_fillercodesize_ps-cn-250_file-99.i[916,929] [2024-11-18 19:38:00,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:38:00,575 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:38:00,585 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_fillercode_fillercodesize_ps-cn-250_file-99.i[916,929] [2024-11-18 19:38:00,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:38:00,717 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:38:00,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00 WrapperNode [2024-11-18 19:38:00,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:38:00,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:38:00,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:38:00,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:38:00,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,799 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 589 [2024-11-18 19:38:00,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:38:00,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:38:00,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:38:00,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:38:00,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,821 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,866 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]. [2024-11-18 19:38:00,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:38:00,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:38:00,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:38:00,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:38:00,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (1/1) ... [2024-11-18 19:38:00,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:38:00,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:38:00,989 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) [2024-11-18 19:38:00,999 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 [2024-11-18 19:38:01,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:38:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:38:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:38:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:38:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:38:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:38:01,181 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:38:01,183 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:38:02,176 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-18 19:38:02,177 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:38:02,203 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:38:02,205 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:38:02,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:38:02 BoogieIcfgContainer [2024-11-18 19:38:02,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:38:02,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:38:02,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:38:02,212 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:38:02,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:38:00" (1/3) ... [2024-11-18 19:38:02,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ff1a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:38:02, skipping insertion in model container [2024-11-18 19:38:02,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:00" (2/3) ... [2024-11-18 19:38:02,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ff1a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:38:02, skipping insertion in model container [2024-11-18 19:38:02,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:38:02" (3/3) ... [2024-11-18 19:38:02,218 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-99.i [2024-11-18 19:38:02,235 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:38:02,236 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:38:02,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:38:02,328 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;@2c3df2e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:38:02,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:38:02,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 164 states have (on average 1.5304878048780488) internal successors, (251), 165 states have internal predecessors, (251), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-18 19:38:02,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-11-18 19:38:02,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:02,373 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:02,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:02,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:02,382 INFO L85 PathProgramCache]: Analyzing trace with hash 319395554, now seen corresponding path program 1 times [2024-11-18 19:38:02,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:02,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177171046] [2024-11-18 19:38:02,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:02,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:03,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:03,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:03,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177171046] [2024-11-18 19:38:03,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177171046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:03,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:03,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:38:03,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609423617] [2024-11-18 19:38:03,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:03,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:38:03,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:03,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:38:03,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:38:03,356 INFO L87 Difference]: Start difference. First operand has 247 states, 164 states have (on average 1.5304878048780488) internal successors, (251), 165 states have internal predecessors, (251), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:03,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:03,529 INFO L93 Difference]: Finished difference Result 654 states and 1223 transitions. [2024-11-18 19:38:03,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:38:03,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 500 [2024-11-18 19:38:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:03,551 INFO L225 Difference]: With dead ends: 654 [2024-11-18 19:38:03,552 INFO L226 Difference]: Without dead ends: 410 [2024-11-18 19:38:03,564 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 [2024-11-18 19:38:03,569 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 269 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:03,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 891 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:38:03,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-18 19:38:03,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 407. [2024-11-18 19:38:03,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 281 states have (on average 1.5373665480427046) internal successors, (432), 282 states have internal predecessors, (432), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-18 19:38:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 678 transitions. [2024-11-18 19:38:03,697 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 678 transitions. Word has length 500 [2024-11-18 19:38:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:03,700 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 678 transitions. [2024-11-18 19:38:03,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:03,701 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 678 transitions. [2024-11-18 19:38:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-11-18 19:38:03,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:03,713 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:03,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 19:38:03,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:03,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:03,715 INFO L85 PathProgramCache]: Analyzing trace with hash -74971232, now seen corresponding path program 1 times [2024-11-18 19:38:03,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:03,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659082450] [2024-11-18 19:38:03,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:03,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:04,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:04,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659082450] [2024-11-18 19:38:04,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659082450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:04,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:04,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:38:04,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965826953] [2024-11-18 19:38:04,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:04,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:38:04,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:04,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:38:04,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:38:04,057 INFO L87 Difference]: Start difference. First operand 407 states and 678 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:04,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:04,173 INFO L93 Difference]: Finished difference Result 1141 states and 1904 transitions. [2024-11-18 19:38:04,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:38:04,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 500 [2024-11-18 19:38:04,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:04,186 INFO L225 Difference]: With dead ends: 1141 [2024-11-18 19:38:04,188 INFO L226 Difference]: Without dead ends: 737 [2024-11-18 19:38:04,191 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 [2024-11-18 19:38:04,193 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 275 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:04,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 972 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:38:04,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-18 19:38:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 734. [2024-11-18 19:38:04,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 518 states have (on average 1.5347490347490347) internal successors, (795), 521 states have internal predecessors, (795), 211 states have call successors, (211), 4 states have call predecessors, (211), 4 states have return successors, (211), 208 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-18 19:38:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1217 transitions. [2024-11-18 19:38:04,289 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1217 transitions. Word has length 500 [2024-11-18 19:38:04,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:04,293 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 1217 transitions. [2024-11-18 19:38:04,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:04,294 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1217 transitions. [2024-11-18 19:38:04,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-11-18 19:38:04,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:04,300 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:04,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:38:04,301 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:04,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash -724992932, now seen corresponding path program 1 times [2024-11-18 19:38:04,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:04,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684616748] [2024-11-18 19:38:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:04,852 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:04,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:04,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684616748] [2024-11-18 19:38:04,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684616748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:04,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:04,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:38:04,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942022231] [2024-11-18 19:38:04,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:04,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:38:04,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:04,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:38:04,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:38:04,871 INFO L87 Difference]: Start difference. First operand 734 states and 1217 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:05,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:05,879 INFO L93 Difference]: Finished difference Result 2798 states and 4635 transitions. [2024-11-18 19:38:05,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:38:05,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 500 [2024-11-18 19:38:05,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:05,903 INFO L225 Difference]: With dead ends: 2798 [2024-11-18 19:38:05,904 INFO L226 Difference]: Without dead ends: 2067 [2024-11-18 19:38:05,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:38:05,913 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 1099 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:05,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1547 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:38:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2024-11-18 19:38:06,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1429. [2024-11-18 19:38:06,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1011 states have (on average 1.5370919881305638) internal successors, (1554), 1018 states have internal predecessors, (1554), 409 states have call successors, (409), 8 states have call predecessors, (409), 8 states have return successors, (409), 402 states have call predecessors, (409), 409 states have call successors, (409) [2024-11-18 19:38:06,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2372 transitions. [2024-11-18 19:38:06,092 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2372 transitions. Word has length 500 [2024-11-18 19:38:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:06,096 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 2372 transitions. [2024-11-18 19:38:06,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2372 transitions. [2024-11-18 19:38:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-18 19:38:06,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:06,104 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:06,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:38:06,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:06,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:06,107 INFO L85 PathProgramCache]: Analyzing trace with hash -744372455, now seen corresponding path program 1 times [2024-11-18 19:38:06,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:06,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016035238] [2024-11-18 19:38:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:06,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:06,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:06,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:06,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016035238] [2024-11-18 19:38:06,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016035238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:06,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:06,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:38:06,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495415559] [2024-11-18 19:38:06,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:06,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:38:06,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:38:06,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:38:06,335 INFO L87 Difference]: Start difference. First operand 1429 states and 2372 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:06,556 INFO L93 Difference]: Finished difference Result 3939 states and 6510 transitions. [2024-11-18 19:38:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:38:06,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 501 [2024-11-18 19:38:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:06,578 INFO L225 Difference]: With dead ends: 3939 [2024-11-18 19:38:06,578 INFO L226 Difference]: Without dead ends: 2513 [2024-11-18 19:38:06,586 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 [2024-11-18 19:38:06,589 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 274 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:06,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1010 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:38:06,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2024-11-18 19:38:06,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2509. [2024-11-18 19:38:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 1723 states have (on average 1.4973882762623332) internal successors, (2580), 1738 states have internal predecessors, (2580), 769 states have call successors, (769), 16 states have call predecessors, (769), 16 states have return successors, (769), 754 states have call predecessors, (769), 769 states have call successors, (769) [2024-11-18 19:38:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 4118 transitions. [2024-11-18 19:38:06,817 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 4118 transitions. Word has length 501 [2024-11-18 19:38:06,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:06,819 INFO L471 AbstractCegarLoop]: Abstraction has 2509 states and 4118 transitions. [2024-11-18 19:38:06,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 4118 transitions. [2024-11-18 19:38:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-18 19:38:06,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:06,827 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:06,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:38:06,828 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:06,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:06,829 INFO L85 PathProgramCache]: Analyzing trace with hash -721740201, now seen corresponding path program 1 times [2024-11-18 19:38:06,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:06,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104689173] [2024-11-18 19:38:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:06,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:07,072 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:07,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:07,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104689173] [2024-11-18 19:38:07,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104689173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:07,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:07,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:38:07,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616275593] [2024-11-18 19:38:07,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:07,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:38:07,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:07,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:38:07,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:38:07,082 INFO L87 Difference]: Start difference. First operand 2509 states and 4118 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:07,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:07,300 INFO L93 Difference]: Finished difference Result 5203 states and 8560 transitions. [2024-11-18 19:38:07,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:38:07,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 501 [2024-11-18 19:38:07,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:07,323 INFO L225 Difference]: With dead ends: 5203 [2024-11-18 19:38:07,323 INFO L226 Difference]: Without dead ends: 2697 [2024-11-18 19:38:07,334 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 [2024-11-18 19:38:07,336 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 285 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:07,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 923 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:38:07,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2024-11-18 19:38:07,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1851. [2024-11-18 19:38:07,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1431 states have (on average 1.5737246680642907) internal successors, (2252), 1438 states have internal predecessors, (2252), 409 states have call successors, (409), 10 states have call predecessors, (409), 10 states have return successors, (409), 402 states have call predecessors, (409), 409 states have call successors, (409) [2024-11-18 19:38:07,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 3070 transitions. [2024-11-18 19:38:07,535 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 3070 transitions. Word has length 501 [2024-11-18 19:38:07,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:07,536 INFO L471 AbstractCegarLoop]: Abstraction has 1851 states and 3070 transitions. [2024-11-18 19:38:07,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:07,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 3070 transitions. [2024-11-18 19:38:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-18 19:38:07,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:07,542 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:07,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:38:07,543 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:07,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2063600894, now seen corresponding path program 1 times [2024-11-18 19:38:07,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:07,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502505146] [2024-11-18 19:38:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:07,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:08,311 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:08,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:08,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502505146] [2024-11-18 19:38:08,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502505146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:08,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:08,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:38:08,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515472573] [2024-11-18 19:38:08,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:08,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:38:08,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:08,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:38:08,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:38:08,315 INFO L87 Difference]: Start difference. First operand 1851 states and 3070 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:09,214 INFO L93 Difference]: Finished difference Result 5241 states and 8676 transitions. [2024-11-18 19:38:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:38:09,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 501 [2024-11-18 19:38:09,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:09,237 INFO L225 Difference]: With dead ends: 5241 [2024-11-18 19:38:09,237 INFO L226 Difference]: Without dead ends: 3393 [2024-11-18 19:38:09,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:38:09,248 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 570 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:09,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 831 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:38:09,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2024-11-18 19:38:09,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 3383. [2024-11-18 19:38:09,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 2659 states have (on average 1.5697630688228656) internal successors, (4174), 2674 states have internal predecessors, (4174), 705 states have call successors, (705), 18 states have call predecessors, (705), 18 states have return successors, (705), 690 states have call predecessors, (705), 705 states have call successors, (705) [2024-11-18 19:38:09,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 5584 transitions. [2024-11-18 19:38:09,516 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 5584 transitions. Word has length 501 [2024-11-18 19:38:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:09,517 INFO L471 AbstractCegarLoop]: Abstraction has 3383 states and 5584 transitions. [2024-11-18 19:38:09,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 5584 transitions. [2024-11-18 19:38:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-18 19:38:09,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:09,525 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:09,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:38:09,526 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:09,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:09,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2007813634, now seen corresponding path program 1 times [2024-11-18 19:38:09,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:09,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915464746] [2024-11-18 19:38:09,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:09,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:12,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:12,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915464746] [2024-11-18 19:38:12,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915464746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:12,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:12,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 19:38:12,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776485305] [2024-11-18 19:38:12,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:12,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 19:38:12,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:12,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 19:38:12,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:38:12,456 INFO L87 Difference]: Start difference. First operand 3383 states and 5584 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 2 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-18 19:38:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:17,741 INFO L93 Difference]: Finished difference Result 15747 states and 25848 transitions. [2024-11-18 19:38:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 19:38:17,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 2 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 503 [2024-11-18 19:38:17,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:17,829 INFO L225 Difference]: With dead ends: 15747 [2024-11-18 19:38:17,829 INFO L226 Difference]: Without dead ends: 12367 [2024-11-18 19:38:17,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2024-11-18 19:38:17,852 INFO L432 NwaCegarLoop]: 497 mSDtfsCounter, 2890 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:17,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 2207 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-18 19:38:17,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2024-11-18 19:38:18,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 5013. [2024-11-18 19:38:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5013 states, 4047 states have (on average 1.5698047936743267) internal successors, (6353), 4066 states have internal predecessors, (6353), 929 states have call successors, (929), 36 states have call predecessors, (929), 36 states have return successors, (929), 910 states have call predecessors, (929), 929 states have call successors, (929) [2024-11-18 19:38:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 8211 transitions. [2024-11-18 19:38:18,673 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 8211 transitions. Word has length 503 [2024-11-18 19:38:18,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:18,677 INFO L471 AbstractCegarLoop]: Abstraction has 5013 states and 8211 transitions. [2024-11-18 19:38:18,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 2 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-18 19:38:18,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 8211 transitions. [2024-11-18 19:38:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-18 19:38:18,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:18,689 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:18,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:38:18,689 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:18,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:18,690 INFO L85 PathProgramCache]: Analyzing trace with hash 318869892, now seen corresponding path program 1 times [2024-11-18 19:38:18,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:18,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830577939] [2024-11-18 19:38:18,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:18,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:21,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:21,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830577939] [2024-11-18 19:38:21,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830577939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:21,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:21,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 19:38:21,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732998505] [2024-11-18 19:38:21,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:21,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 19:38:21,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:21,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 19:38:21,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:38:21,289 INFO L87 Difference]: Start difference. First operand 5013 states and 8211 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2024-11-18 19:38:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:25,429 INFO L93 Difference]: Finished difference Result 13053 states and 21406 transitions. [2024-11-18 19:38:25,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:38:25,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) Word has length 503 [2024-11-18 19:38:25,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:25,469 INFO L225 Difference]: With dead ends: 13053 [2024-11-18 19:38:25,469 INFO L226 Difference]: Without dead ends: 8043 [2024-11-18 19:38:25,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-18 19:38:25,497 INFO L432 NwaCegarLoop]: 727 mSDtfsCounter, 1820 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:25,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 1726 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 19:38:25,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8043 states. [2024-11-18 19:38:26,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8043 to 4325. [2024-11-18 19:38:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 3359 states have (on average 1.5549270616254838) internal successors, (5223), 3378 states have internal predecessors, (5223), 929 states have call successors, (929), 36 states have call predecessors, (929), 36 states have return successors, (929), 910 states have call predecessors, (929), 929 states have call successors, (929) [2024-11-18 19:38:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 7081 transitions. [2024-11-18 19:38:26,391 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 7081 transitions. Word has length 503 [2024-11-18 19:38:26,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:26,392 INFO L471 AbstractCegarLoop]: Abstraction has 4325 states and 7081 transitions. [2024-11-18 19:38:26,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2024-11-18 19:38:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 7081 transitions. [2024-11-18 19:38:26,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-18 19:38:26,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:26,402 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:26,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:38:26,402 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:26,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:26,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1393667324, now seen corresponding path program 1 times [2024-11-18 19:38:26,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:26,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017067655] [2024-11-18 19:38:26,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:26,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2024-11-18 19:38:28,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:28,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017067655] [2024-11-18 19:38:28,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017067655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:28,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:28,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:38:28,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025132053] [2024-11-18 19:38:28,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:28,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:38:28,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:28,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:38:28,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:38:28,579 INFO L87 Difference]: Start difference. First operand 4325 states and 7081 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:32,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:32,612 INFO L93 Difference]: Finished difference Result 18577 states and 30397 transitions. [2024-11-18 19:38:32,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:38:32,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 503 [2024-11-18 19:38:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:32,672 INFO L225 Difference]: With dead ends: 18577 [2024-11-18 19:38:32,672 INFO L226 Difference]: Without dead ends: 14255 [2024-11-18 19:38:32,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:38:32,690 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 886 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:32,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1982 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 19:38:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14255 states. [2024-11-18 19:38:35,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14255 to 14204. [2024-11-18 19:38:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14204 states, 11018 states have (on average 1.550462878925395) internal successors, (17083), 11097 states have internal predecessors, (17083), 3073 states have call successors, (3073), 112 states have call predecessors, (3073), 112 states have return successors, (3073), 2994 states have call predecessors, (3073), 3073 states have call successors, (3073) [2024-11-18 19:38:35,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14204 states to 14204 states and 23229 transitions. [2024-11-18 19:38:35,181 INFO L78 Accepts]: Start accepts. Automaton has 14204 states and 23229 transitions. Word has length 503 [2024-11-18 19:38:35,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:35,183 INFO L471 AbstractCegarLoop]: Abstraction has 14204 states and 23229 transitions. [2024-11-18 19:38:35,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2024-11-18 19:38:35,183 INFO L276 IsEmpty]: Start isEmpty. Operand 14204 states and 23229 transitions. [2024-11-18 19:38:35,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-18 19:38:35,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:35,283 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:35,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:38:35,283 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:35,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:35,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1212356230, now seen corresponding path program 1 times [2024-11-18 19:38:35,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:35,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122586034] [2024-11-18 19:38:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:35,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:36,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 21 proven. 447 refuted. 0 times theorem prover too weak. 12172 trivial. 0 not checked. [2024-11-18 19:38:36,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:36,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122586034] [2024-11-18 19:38:36,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122586034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:38:36,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569890902] [2024-11-18 19:38:36,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:36,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:38:36,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:38:36,945 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) [2024-11-18 19:38:36,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:38:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:37,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 19:38:37,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:38:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 1373 proven. 447 refuted. 0 times theorem prover too weak. 10820 trivial. 0 not checked. [2024-11-18 19:38:39,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 19:38:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 21 proven. 450 refuted. 0 times theorem prover too weak. 12169 trivial. 0 not checked. [2024-11-18 19:38:41,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569890902] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 19:38:41,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 19:38:41,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 15 [2024-11-18 19:38:41,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807111104] [2024-11-18 19:38:41,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 19:38:41,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 19:38:41,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:41,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 19:38:41,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:38:41,181 INFO L87 Difference]: Start difference. First operand 14204 states and 23229 transitions. Second operand has 15 states, 15 states have (on average 8.8) internal successors, (132), 15 states have internal predecessors, (132), 3 states have call successors, (156), 3 states have call predecessors, (156), 7 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) [2024-11-18 19:38:50,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:50,353 INFO L93 Difference]: Finished difference Result 59879 states and 95099 transitions. [2024-11-18 19:38:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-18 19:38:50,354 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.8) internal successors, (132), 15 states have internal predecessors, (132), 3 states have call successors, (156), 3 states have call predecessors, (156), 7 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) Word has length 503 [2024-11-18 19:38:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:50,540 INFO L225 Difference]: With dead ends: 59879 [2024-11-18 19:38:50,541 INFO L226 Difference]: Without dead ends: 45678 [2024-11-18 19:38:50,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 1003 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2024-11-18 19:38:50,608 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 988 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:50,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 3109 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 19:38:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45678 states. [2024-11-18 19:38:54,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45678 to 15004. [2024-11-18 19:38:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15004 states, 11658 states have (on average 1.513381369016984) internal successors, (17643), 11737 states have internal predecessors, (17643), 3073 states have call successors, (3073), 272 states have call predecessors, (3073), 272 states have return successors, (3073), 2994 states have call predecessors, (3073), 3073 states have call successors, (3073) [2024-11-18 19:38:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15004 states to 15004 states and 23789 transitions. [2024-11-18 19:38:54,341 INFO L78 Accepts]: Start accepts. Automaton has 15004 states and 23789 transitions. Word has length 503 [2024-11-18 19:38:54,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:54,343 INFO L471 AbstractCegarLoop]: Abstraction has 15004 states and 23789 transitions. [2024-11-18 19:38:54,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.8) internal successors, (132), 15 states have internal predecessors, (132), 3 states have call successors, (156), 3 states have call predecessors, (156), 7 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) [2024-11-18 19:38:54,343 INFO L276 IsEmpty]: Start isEmpty. Operand 15004 states and 23789 transitions. [2024-11-18 19:38:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-18 19:38:54,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:54,364 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:54,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 19:38:54,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-18 19:38:54,566 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:54,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash 201238980, now seen corresponding path program 1 times [2024-11-18 19:38:54,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:54,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600571050] [2024-11-18 19:38:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:54,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:39:01,416 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 387 proven. 81 refuted. 0 times theorem prover too weak. 12172 trivial. 0 not checked. [2024-11-18 19:39:01,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:39:01,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600571050] [2024-11-18 19:39:01,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600571050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:39:01,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555063826] [2024-11-18 19:39:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:39:01,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:39:01,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:39:01,421 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) [2024-11-18 19:39:01,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 19:39:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:39:01,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-18 19:39:01,716 INFO L278 TraceCheckSpWp]: Computing forward predicates...