./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.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-100_file-34.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 2b329d9832ec99d9ffbb7796b225f0eac74b08ac18938b07d93f1b80cf8ae2f9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:09:40,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:09:40,125 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:09:40,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:09:40,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:09:40,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:09:40,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:09:40,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:09:40,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:09:40,174 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:09:40,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:09:40,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:09:40,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:09:40,176 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:09:40,178 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:09:40,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:09:40,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:09:40,182 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:09:40,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:09:40,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:09:40,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:09:40,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:09:40,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:09:40,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:09:40,184 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:09:40,184 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:09:40,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:09:40,185 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:09:40,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:09:40,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:09:40,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:09:40,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:09:40,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:09:40,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:09:40,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:09:40,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:09:40,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:09:40,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:09:40,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:09:40,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:09:40,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:09:40,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:09:40,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b329d9832ec99d9ffbb7796b225f0eac74b08ac18938b07d93f1b80cf8ae2f9 [2024-11-18 19:09:40,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:09:40,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:09:40,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:09:40,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:09:40,504 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:09:40,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-11-18 19:09:42,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:09:42,302 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:09:42,303 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-11-18 19:09:42,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456b627e6/02ddd1c43fba42bcbd49601dc9c483bb/FLAG4e611ccc7 [2024-11-18 19:09:42,331 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456b627e6/02ddd1c43fba42bcbd49601dc9c483bb [2024-11-18 19:09:42,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:09:42,335 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:09:42,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:09:42,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:09:42,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:09:42,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:42,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3492e5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42, skipping insertion in model container [2024-11-18 19:09:42,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:42,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:09:42,598 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-100_file-34.i[916,929] [2024-11-18 19:09:42,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:09:42,736 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:09:42,752 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-100_file-34.i[916,929] [2024-11-18 19:09:42,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:09:42,917 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:09:42,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42 WrapperNode [2024-11-18 19:09:42,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:09:42,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:09:42,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:09:42,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:09:42,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:42,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,022 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 318 [2024-11-18 19:09:43,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:09:43,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:09:43,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:09:43,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:09:43,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,098 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 19:09:43,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:09:43,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:09:43,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:09:43,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:09:43,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (1/1) ... [2024-11-18 19:09:43,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:09:43,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:09:43,184 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 19:09:43,188 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 19:09:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:09:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:09:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:09:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:09:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:09:43,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:09:43,380 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:09:43,383 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:09:44,012 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-18 19:09:44,012 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:09:44,035 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:09:44,036 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:09:44,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:09:44 BoogieIcfgContainer [2024-11-18 19:09:44,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:09:44,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:09:44,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:09:44,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:09:44,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:09:42" (1/3) ... [2024-11-18 19:09:44,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b738ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:09:44, skipping insertion in model container [2024-11-18 19:09:44,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:09:42" (2/3) ... [2024-11-18 19:09:44,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b738ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:09:44, skipping insertion in model container [2024-11-18 19:09:44,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:09:44" (3/3) ... [2024-11-18 19:09:44,052 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-34.i [2024-11-18 19:09:44,071 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:09:44,071 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:09:44,158 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:09:44,165 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;@c249635, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:09:44,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:09:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 90 states have (on average 1.4777777777777779) internal successors, (133), 91 states have internal predecessors, (133), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-18 19:09:44,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-18 19:09:44,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:09:44,206 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:44,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:09:44,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:09:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1857806639, now seen corresponding path program 1 times [2024-11-18 19:09:44,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:09:44,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952026677] [2024-11-18 19:09:44,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:09:44,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:09:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:09:44,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2024-11-18 19:09:44,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:09:44,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952026677] [2024-11-18 19:09:44,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952026677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:09:44,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315955648] [2024-11-18 19:09:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:09:44,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:09:44,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:09:44,799 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 19:09:44,801 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 19:09:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:09:45,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:09:45,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:09:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2024-11-18 19:09:45,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:09:45,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315955648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:09:45,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:09:45,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:09:45,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20734761] [2024-11-18 19:09:45,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:09:45,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:09:45,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:09:45,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:09:45,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:09:45,160 INFO L87 Difference]: Start difference. First operand has 137 states, 90 states have (on average 1.4777777777777779) internal successors, (133), 91 states have internal predecessors, (133), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-18 19:09:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:09:45,199 INFO L93 Difference]: Finished difference Result 267 states and 480 transitions. [2024-11-18 19:09:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:09:45,202 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) Word has length 276 [2024-11-18 19:09:45,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:09:45,211 INFO L225 Difference]: With dead ends: 267 [2024-11-18 19:09:45,211 INFO L226 Difference]: Without dead ends: 133 [2024-11-18 19:09:45,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:09:45,219 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:09:45,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:09:45,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-18 19:09:45,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-18 19:09:45,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 87 states have internal predecessors, (126), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-18 19:09:45,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 214 transitions. [2024-11-18 19:09:45,294 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 214 transitions. Word has length 276 [2024-11-18 19:09:45,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:09:45,295 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 214 transitions. [2024-11-18 19:09:45,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-18 19:09:45,297 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 214 transitions. [2024-11-18 19:09:45,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-18 19:09:45,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:09:45,302 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:45,322 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 19:09:45,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:09:45,504 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:09:45,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:09:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash 131489191, now seen corresponding path program 1 times [2024-11-18 19:09:45,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:09:45,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870798975] [2024-11-18 19:09:45,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:09:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:09:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:09:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:09:46,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:09:46,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870798975] [2024-11-18 19:09:46,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870798975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:09:46,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:09:46,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:09:46,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38390264] [2024-11-18 19:09:46,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:09:46,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:09:46,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:09:46,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:09:46,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:09:46,196 INFO L87 Difference]: Start difference. First operand 133 states and 214 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:09:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:09:46,478 INFO L93 Difference]: Finished difference Result 423 states and 681 transitions. [2024-11-18 19:09:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:09:46,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 276 [2024-11-18 19:09:46,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:09:46,486 INFO L225 Difference]: With dead ends: 423 [2024-11-18 19:09:46,489 INFO L226 Difference]: Without dead ends: 293 [2024-11-18 19:09:46,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:09:46,491 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 204 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:09:46,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 660 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:09:46,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-18 19:09:46,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 263. [2024-11-18 19:09:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 172 states have (on average 1.447674418604651) internal successors, (249), 172 states have internal predecessors, (249), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-18 19:09:46,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 425 transitions. [2024-11-18 19:09:46,563 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 425 transitions. Word has length 276 [2024-11-18 19:09:46,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:09:46,565 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 425 transitions. [2024-11-18 19:09:46,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:09:46,566 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 425 transitions. [2024-11-18 19:09:46,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-18 19:09:46,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:09:46,574 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:46,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:09:46,574 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:09:46,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:09:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1079059205, now seen corresponding path program 1 times [2024-11-18 19:09:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:09:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797386844] [2024-11-18 19:09:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:09:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:09:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:09:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:09:46,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:09:46,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797386844] [2024-11-18 19:09:46,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797386844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:09:46,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:09:46,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:09:46,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738444056] [2024-11-18 19:09:46,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:09:46,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:09:46,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:09:46,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:09:46,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:09:46,953 INFO L87 Difference]: Start difference. First operand 263 states and 425 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:09:47,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:09:47,372 INFO L93 Difference]: Finished difference Result 778 states and 1258 transitions. [2024-11-18 19:09:47,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:09:47,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 277 [2024-11-18 19:09:47,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:09:47,381 INFO L225 Difference]: With dead ends: 778 [2024-11-18 19:09:47,381 INFO L226 Difference]: Without dead ends: 518 [2024-11-18 19:09:47,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:09:47,385 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 241 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:09:47,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 796 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:09:47,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-18 19:09:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 267. [2024-11-18 19:09:47,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 176 states have (on average 1.4375) internal successors, (253), 176 states have internal predecessors, (253), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-18 19:09:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 429 transitions. [2024-11-18 19:09:47,452 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 429 transitions. Word has length 277 [2024-11-18 19:09:47,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:09:47,454 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 429 transitions. [2024-11-18 19:09:47,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:09:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 429 transitions. [2024-11-18 19:09:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 19:09:47,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:09:47,460 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:47,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:09:47,460 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:09:47,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:09:47,461 INFO L85 PathProgramCache]: Analyzing trace with hash 998591439, now seen corresponding path program 1 times [2024-11-18 19:09:47,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:09:47,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943556877] [2024-11-18 19:09:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:09:47,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:09:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:09:48,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:09:48,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:09:48,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943556877] [2024-11-18 19:09:48,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943556877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:09:48,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:09:48,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:09:48,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519010343] [2024-11-18 19:09:48,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:09:48,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:09:48,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:09:48,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:09:48,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:09:48,736 INFO L87 Difference]: Start difference. First operand 267 states and 429 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:09:49,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:09:49,353 INFO L93 Difference]: Finished difference Result 916 states and 1461 transitions. [2024-11-18 19:09:49,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:09:49,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-18 19:09:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:09:49,363 INFO L225 Difference]: With dead ends: 916 [2024-11-18 19:09:49,363 INFO L226 Difference]: Without dead ends: 652 [2024-11-18 19:09:49,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:09:49,365 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 377 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:09:49,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 553 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:09:49,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-18 19:09:49,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 447. [2024-11-18 19:09:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 322 states have (on average 1.484472049689441) internal successors, (478), 324 states have internal predecessors, (478), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-18 19:09:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 718 transitions. [2024-11-18 19:09:49,473 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 718 transitions. Word has length 278 [2024-11-18 19:09:49,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:09:49,475 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 718 transitions. [2024-11-18 19:09:49,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:09:49,475 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 718 transitions. [2024-11-18 19:09:49,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 19:09:49,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:09:49,480 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:49,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:09:49,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:09:49,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:09:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash -924636595, now seen corresponding path program 1 times [2024-11-18 19:09:49,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:09:49,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249591681] [2024-11-18 19:09:49,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:09:49,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:09:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:09:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:09:54,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:09:54,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249591681] [2024-11-18 19:09:54,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249591681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:09:54,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:09:54,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 19:09:54,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129953859] [2024-11-18 19:09:54,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:09:54,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 19:09:54,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:09:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 19:09:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:09:54,561 INFO L87 Difference]: Start difference. First operand 447 states and 718 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:09:59,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:09:59,131 INFO L93 Difference]: Finished difference Result 1282 states and 1984 transitions. [2024-11-18 19:09:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 19:09:59,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-18 19:09:59,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:09:59,143 INFO L225 Difference]: With dead ends: 1282 [2024-11-18 19:09:59,144 INFO L226 Difference]: Without dead ends: 838 [2024-11-18 19:09:59,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2024-11-18 19:09:59,146 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 754 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:09:59,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 874 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 19:09:59,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-18 19:09:59,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 583. [2024-11-18 19:09:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 434 states have (on average 1.4516129032258065) internal successors, (630), 440 states have internal predecessors, (630), 140 states have call successors, (140), 8 states have call predecessors, (140), 8 states have return successors, (140), 134 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-18 19:09:59,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 910 transitions. [2024-11-18 19:09:59,242 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 910 transitions. Word has length 278 [2024-11-18 19:09:59,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:09:59,242 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 910 transitions. [2024-11-18 19:09:59,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:09:59,243 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 910 transitions. [2024-11-18 19:09:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 19:09:59,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:09:59,250 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:59,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:09:59,251 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:09:59,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:09:59,252 INFO L85 PathProgramCache]: Analyzing trace with hash 850370767, now seen corresponding path program 1 times [2024-11-18 19:09:59,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:09:59,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688838633] [2024-11-18 19:09:59,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:09:59,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:09:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:01,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:01,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688838633] [2024-11-18 19:10:01,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688838633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:01,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:01,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 19:10:01,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470435258] [2024-11-18 19:10:01,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:01,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 19:10:01,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:01,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 19:10:01,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:10:01,891 INFO L87 Difference]: Start difference. First operand 583 states and 910 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:03,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:03,505 INFO L93 Difference]: Finished difference Result 1942 states and 2980 transitions. [2024-11-18 19:10:03,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 19:10:03,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-18 19:10:03,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:03,513 INFO L225 Difference]: With dead ends: 1942 [2024-11-18 19:10:03,514 INFO L226 Difference]: Without dead ends: 1362 [2024-11-18 19:10:03,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:10:03,518 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 470 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:03,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 886 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 19:10:03,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-11-18 19:10:03,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 800. [2024-11-18 19:10:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 605 states have (on average 1.4611570247933885) internal successors, (884), 611 states have internal predecessors, (884), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:10:03,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1252 transitions. [2024-11-18 19:10:03,638 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1252 transitions. Word has length 278 [2024-11-18 19:10:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:03,639 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1252 transitions. [2024-11-18 19:10:03,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1252 transitions. [2024-11-18 19:10:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 19:10:03,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:03,642 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:03,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:10:03,644 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:03,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash -244578225, now seen corresponding path program 1 times [2024-11-18 19:10:03,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:03,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501607311] [2024-11-18 19:10:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:03,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:06,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:06,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:06,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501607311] [2024-11-18 19:10:06,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501607311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:06,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:06,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 19:10:06,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461887125] [2024-11-18 19:10:06,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:06,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 19:10:06,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:06,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 19:10:06,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:10:06,688 INFO L87 Difference]: Start difference. First operand 800 states and 1252 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-18 19:10:08,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:08,602 INFO L93 Difference]: Finished difference Result 2100 states and 3195 transitions. [2024-11-18 19:10:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 19:10:08,605 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 278 [2024-11-18 19:10:08,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:08,613 INFO L225 Difference]: With dead ends: 2100 [2024-11-18 19:10:08,613 INFO L226 Difference]: Without dead ends: 1438 [2024-11-18 19:10:08,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-18 19:10:08,617 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 497 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:08,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1160 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:10:08,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-18 19:10:08,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1134. [2024-11-18 19:10:08,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 939 states have (on average 1.4717784877529287) internal successors, (1382), 945 states have internal predecessors, (1382), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:10:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1750 transitions. [2024-11-18 19:10:08,719 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1750 transitions. Word has length 278 [2024-11-18 19:10:08,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:08,720 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1750 transitions. [2024-11-18 19:10:08,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-18 19:10:08,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1750 transitions. [2024-11-18 19:10:08,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 19:10:08,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:08,724 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:08,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:10:08,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:08,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:08,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2100197630, now seen corresponding path program 1 times [2024-11-18 19:10:08,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:08,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821670247] [2024-11-18 19:10:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:08,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:10,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:10,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:10,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821670247] [2024-11-18 19:10:10,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821670247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:10,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:10,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:10:10,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629697295] [2024-11-18 19:10:10,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:10,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:10:10,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:10,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:10:10,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:10:10,677 INFO L87 Difference]: Start difference. First operand 1134 states and 1750 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:11,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:11,264 INFO L93 Difference]: Finished difference Result 2190 states and 3343 transitions. [2024-11-18 19:10:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:10:11,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-18 19:10:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:11,273 INFO L225 Difference]: With dead ends: 2190 [2024-11-18 19:10:11,273 INFO L226 Difference]: Without dead ends: 1506 [2024-11-18 19:10:11,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:10:11,276 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 245 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:11,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 695 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:10:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-18 19:10:11,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1146. [2024-11-18 19:10:11,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 951 states have (on average 1.4616193480546793) internal successors, (1390), 957 states have internal predecessors, (1390), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:10:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1758 transitions. [2024-11-18 19:10:11,385 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1758 transitions. Word has length 278 [2024-11-18 19:10:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:11,385 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1758 transitions. [2024-11-18 19:10:11,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1758 transitions. [2024-11-18 19:10:11,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 19:10:11,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:11,388 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:11,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:10:11,389 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:11,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:11,389 INFO L85 PathProgramCache]: Analyzing trace with hash -160746483, now seen corresponding path program 1 times [2024-11-18 19:10:11,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:11,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560291487] [2024-11-18 19:10:11,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:11,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:12,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:12,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560291487] [2024-11-18 19:10:12,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560291487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:12,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:12,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:10:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493353820] [2024-11-18 19:10:12,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:12,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:10:12,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:12,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:10:12,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:10:12,045 INFO L87 Difference]: Start difference. First operand 1146 states and 1758 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:12,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:12,956 INFO L93 Difference]: Finished difference Result 2384 states and 3620 transitions. [2024-11-18 19:10:12,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:10:12,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-18 19:10:12,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:12,965 INFO L225 Difference]: With dead ends: 2384 [2024-11-18 19:10:12,966 INFO L226 Difference]: Without dead ends: 1716 [2024-11-18 19:10:12,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-18 19:10:12,971 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 343 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:12,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 881 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 19:10:12,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-18 19:10:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1126. [2024-11-18 19:10:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 931 states have (on average 1.4543501611170784) internal successors, (1354), 937 states have internal predecessors, (1354), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:10:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1722 transitions. [2024-11-18 19:10:13,102 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1722 transitions. Word has length 278 [2024-11-18 19:10:13,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:13,104 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1722 transitions. [2024-11-18 19:10:13,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:13,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1722 transitions. [2024-11-18 19:10:13,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 19:10:13,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:13,110 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:13,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:10:13,110 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:13,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:13,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1255695475, now seen corresponding path program 1 times [2024-11-18 19:10:13,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:13,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375388869] [2024-11-18 19:10:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:13,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:13,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:13,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375388869] [2024-11-18 19:10:13,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375388869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:13,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:13,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:10:13,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119132494] [2024-11-18 19:10:13,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:13,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:10:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:13,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:10:13,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:10:13,646 INFO L87 Difference]: Start difference. First operand 1126 states and 1722 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:14,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:14,091 INFO L93 Difference]: Finished difference Result 2044 states and 3106 transitions. [2024-11-18 19:10:14,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:10:14,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 278 [2024-11-18 19:10:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:14,099 INFO L225 Difference]: With dead ends: 2044 [2024-11-18 19:10:14,099 INFO L226 Difference]: Without dead ends: 1168 [2024-11-18 19:10:14,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:10:14,103 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 156 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:14,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 569 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:10:14,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-18 19:10:14,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1062. [2024-11-18 19:10:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 867 states have (on average 1.4371395617070357) internal successors, (1246), 873 states have internal predecessors, (1246), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:10:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1614 transitions. [2024-11-18 19:10:14,224 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1614 transitions. Word has length 278 [2024-11-18 19:10:14,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:14,225 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1614 transitions. [2024-11-18 19:10:14,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1614 transitions. [2024-11-18 19:10:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-18 19:10:14,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:14,227 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:14,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:10:14,228 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:14,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:14,228 INFO L85 PathProgramCache]: Analyzing trace with hash 670490962, now seen corresponding path program 1 times [2024-11-18 19:10:14,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:14,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420067622] [2024-11-18 19:10:14,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:14,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420067622] [2024-11-18 19:10:16,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420067622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:16,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:16,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 19:10:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022916535] [2024-11-18 19:10:16,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:16,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 19:10:16,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 19:10:16,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:10:16,855 INFO L87 Difference]: Start difference. First operand 1062 states and 1614 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:18,273 INFO L93 Difference]: Finished difference Result 2064 states and 3114 transitions. [2024-11-18 19:10:18,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 19:10:18,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 279 [2024-11-18 19:10:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:18,285 INFO L225 Difference]: With dead ends: 2064 [2024-11-18 19:10:18,285 INFO L226 Difference]: Without dead ends: 1484 [2024-11-18 19:10:18,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:10:18,289 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 357 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:18,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 986 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:10:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2024-11-18 19:10:18,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 910. [2024-11-18 19:10:18,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 735 states have (on average 1.4394557823129253) internal successors, (1058), 737 states have internal predecessors, (1058), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-18 19:10:18,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1386 transitions. [2024-11-18 19:10:18,387 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1386 transitions. Word has length 279 [2024-11-18 19:10:18,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:18,388 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1386 transitions. [2024-11-18 19:10:18,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:18,388 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1386 transitions. [2024-11-18 19:10:18,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-18 19:10:18,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:18,390 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:18,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:10:18,391 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:18,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:18,392 INFO L85 PathProgramCache]: Analyzing trace with hash 515457480, now seen corresponding path program 1 times [2024-11-18 19:10:18,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:18,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548193366] [2024-11-18 19:10:18,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:18,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:24,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:24,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:24,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548193366] [2024-11-18 19:10:24,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548193366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:24,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:24,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 19:10:24,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139769376] [2024-11-18 19:10:24,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:24,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 19:10:24,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:24,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 19:10:24,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:10:24,272 INFO L87 Difference]: Start difference. First operand 910 states and 1386 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-18 19:10:27,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:27,609 INFO L93 Difference]: Finished difference Result 1902 states and 2841 transitions. [2024-11-18 19:10:27,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 19:10:27,610 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 279 [2024-11-18 19:10:27,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:27,617 INFO L225 Difference]: With dead ends: 1902 [2024-11-18 19:10:27,618 INFO L226 Difference]: Without dead ends: 1298 [2024-11-18 19:10:27,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2024-11-18 19:10:27,621 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 344 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:27,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1796 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 19:10:27,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2024-11-18 19:10:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1050. [2024-11-18 19:10:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 875 states have (on average 1.4194285714285715) internal successors, (1242), 877 states have internal predecessors, (1242), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-18 19:10:27,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1570 transitions. [2024-11-18 19:10:27,745 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1570 transitions. Word has length 279 [2024-11-18 19:10:27,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:27,745 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1570 transitions. [2024-11-18 19:10:27,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-18 19:10:27,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1570 transitions. [2024-11-18 19:10:27,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-18 19:10:27,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:27,749 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:27,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:10:27,749 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:27,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:27,750 INFO L85 PathProgramCache]: Analyzing trace with hash -599928232, now seen corresponding path program 1 times [2024-11-18 19:10:27,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:27,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318281196] [2024-11-18 19:10:27,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:27,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:37,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:37,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318281196] [2024-11-18 19:10:37,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318281196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:37,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:37,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 19:10:37,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428438635] [2024-11-18 19:10:37,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:37,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 19:10:37,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:37,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 19:10:37,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:10:37,379 INFO L87 Difference]: Start difference. First operand 1050 states and 1570 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:40,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:40,369 INFO L93 Difference]: Finished difference Result 1836 states and 2725 transitions. [2024-11-18 19:10:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 19:10:40,370 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-11-18 19:10:40,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:40,379 INFO L225 Difference]: With dead ends: 1836 [2024-11-18 19:10:40,379 INFO L226 Difference]: Without dead ends: 1238 [2024-11-18 19:10:40,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=225, Invalid=767, Unknown=0, NotChecked=0, Total=992 [2024-11-18 19:10:40,383 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 446 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:40,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1472 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 19:10:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2024-11-18 19:10:40,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 968. [2024-11-18 19:10:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 793 states have (on average 1.4325346784363178) internal successors, (1136), 795 states have internal predecessors, (1136), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-18 19:10:40,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1464 transitions. [2024-11-18 19:10:40,518 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1464 transitions. Word has length 280 [2024-11-18 19:10:40,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:40,518 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1464 transitions. [2024-11-18 19:10:40,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:40,519 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1464 transitions. [2024-11-18 19:10:40,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-18 19:10:40,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:40,522 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:40,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:10:40,522 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:40,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:40,523 INFO L85 PathProgramCache]: Analyzing trace with hash 80130138, now seen corresponding path program 1 times [2024-11-18 19:10:40,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:40,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102015449] [2024-11-18 19:10:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:40,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:42,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:42,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102015449] [2024-11-18 19:10:42,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102015449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:42,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:42,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 19:10:42,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577362064] [2024-11-18 19:10:42,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:42,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 19:10:42,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:42,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 19:10:42,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:10:42,603 INFO L87 Difference]: Start difference. First operand 968 states and 1464 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:43,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:10:43,846 INFO L93 Difference]: Finished difference Result 1594 states and 2398 transitions. [2024-11-18 19:10:43,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 19:10:43,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 280 [2024-11-18 19:10:43,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:10:43,854 INFO L225 Difference]: With dead ends: 1594 [2024-11-18 19:10:43,854 INFO L226 Difference]: Without dead ends: 1086 [2024-11-18 19:10:43,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-18 19:10:43,858 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 314 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 19:10:43,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 919 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 19:10:43,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2024-11-18 19:10:43,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 948. [2024-11-18 19:10:43,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 773 states have (on average 1.4333764553686934) internal successors, (1108), 775 states have internal predecessors, (1108), 164 states have call successors, (164), 10 states have call predecessors, (164), 10 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-18 19:10:43,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1436 transitions. [2024-11-18 19:10:43,970 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1436 transitions. Word has length 280 [2024-11-18 19:10:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:10:43,971 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1436 transitions. [2024-11-18 19:10:43,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-18 19:10:43,971 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1436 transitions. [2024-11-18 19:10:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-18 19:10:43,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:10:43,974 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:43,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:10:43,975 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:10:43,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:10:43,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1824763124, now seen corresponding path program 1 times [2024-11-18 19:10:43,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:10:43,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980619924] [2024-11-18 19:10:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:10:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:10:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:10:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-18 19:10:50,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:10:50,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980619924] [2024-11-18 19:10:50,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980619924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:10:50,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:10:50,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:10:50,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349346948] [2024-11-18 19:10:50,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:10:50,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:10:50,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:10:50,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:10:50,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:10:50,011 INFO L87 Difference]: Start difference. First operand 948 states and 1436 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)