./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_fillercodestructure_filler-pe-co_file-12.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 b50c918f4161b5cc99814dedbb1d5f1068fe72db189eac8c3c500593eb4daaee --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 21:28:08,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 21:28:08,168 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 21:28:08,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 21:28:08,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 21:28:08,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 21:28:08,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 21:28:08,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 21:28:08,198 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 21:28:08,199 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 21:28:08,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 21:28:08,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 21:28:08,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 21:28:08,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 21:28:08,202 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 21:28:08,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 21:28:08,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 21:28:08,203 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 21:28:08,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 21:28:08,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 21:28:08,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 21:28:08,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 21:28:08,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 21:28:08,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 21:28:08,208 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 21:28:08,208 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 21:28:08,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 21:28:08,208 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 21:28:08,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 21:28:08,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 21:28:08,209 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 21:28:08,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 21:28:08,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:28:08,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 21:28:08,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 21:28:08,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 21:28:08,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 21:28:08,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 21:28:08,210 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 21:28:08,210 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 21:28:08,210 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 21:28:08,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 21:28:08,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b50c918f4161b5cc99814dedbb1d5f1068fe72db189eac8c3c500593eb4daaee [2024-11-08 21:28:08,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 21:28:08,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 21:28:08,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 21:28:08,458 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 21:28:08,459 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 21:28:08,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-12.i [2024-11-08 21:28:09,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 21:28:09,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 21:28:09,917 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-12.i [2024-11-08 21:28:09,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50400ba38/e9860f4b9922454aa2123778b774519c/FLAG6d38d878e [2024-11-08 21:28:09,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50400ba38/e9860f4b9922454aa2123778b774519c [2024-11-08 21:28:09,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 21:28:09,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 21:28:09,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 21:28:09,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 21:28:09,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 21:28:09,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:28:09" (1/1) ... [2024-11-08 21:28:09,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5528f7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:09, skipping insertion in model container [2024-11-08 21:28:09,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:28:09" (1/1) ... [2024-11-08 21:28:09,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 21:28:10,134 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_fillercodestructure_filler-pe-co_file-12.i[919,932] [2024-11-08 21:28:10,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:28:10,282 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 21:28:10,292 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_fillercodestructure_filler-pe-co_file-12.i[919,932] [2024-11-08 21:28:10,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:28:10,331 INFO L204 MainTranslator]: Completed translation [2024-11-08 21:28:10,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10 WrapperNode [2024-11-08 21:28:10,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 21:28:10,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 21:28:10,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 21:28:10,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 21:28:10,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,388 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 240 [2024-11-08 21:28:10,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 21:28:10,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 21:28:10,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 21:28:10,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 21:28:10,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,406 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,422 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]. [2024-11-08 21:28:10,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 21:28:10,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 21:28:10,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 21:28:10,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 21:28:10,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (1/1) ... [2024-11-08 21:28:10,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:28:10,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:28:10,483 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) [2024-11-08 21:28:10,492 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 [2024-11-08 21:28:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 21:28:10,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 21:28:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 21:28:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 21:28:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 21:28:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 21:28:10,635 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 21:28:10,639 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 21:28:11,037 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-08 21:28:11,037 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 21:28:11,054 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 21:28:11,054 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 21:28:11,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:28:11 BoogieIcfgContainer [2024-11-08 21:28:11,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 21:28:11,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 21:28:11,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 21:28:11,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 21:28:11,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:28:09" (1/3) ... [2024-11-08 21:28:11,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf2e3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:28:11, skipping insertion in model container [2024-11-08 21:28:11,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:28:10" (2/3) ... [2024-11-08 21:28:11,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf2e3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:28:11, skipping insertion in model container [2024-11-08 21:28:11,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:28:11" (3/3) ... [2024-11-08 21:28:11,063 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-12.i [2024-11-08 21:28:11,087 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 21:28:11,088 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 21:28:11,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 21:28:11,162 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;@5126ba2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 21:28:11,163 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 21:28:11,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 63 states have internal predecessors, (88), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-08 21:28:11,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-08 21:28:11,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:11,183 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:11,183 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:11,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:11,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1295753400, now seen corresponding path program 1 times [2024-11-08 21:28:11,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:11,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372238413] [2024-11-08 21:28:11,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:11,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:28:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:28:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:28:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:28:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:28:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:28:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:28:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:28:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:28:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:28:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:28:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:28:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:28:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:28:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 21:28:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:28:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:28:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 21:28:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:28:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 21:28:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:28:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:28:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:28:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:28:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 21:28:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:28:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 21:28:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:28:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 21:28:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-08 21:28:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-08 21:28:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-08 21:28:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-08 21:28:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 21:28:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-08 21:28:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-08 21:28:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-08 21:28:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-08 21:28:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-08 21:28:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 21:28:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-08 21:28:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-11-08 21:28:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-08 21:28:11,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:11,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372238413] [2024-11-08 21:28:11,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372238413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:28:11,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:28:11,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 21:28:11,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253771248] [2024-11-08 21:28:11,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:28:11,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 21:28:11,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:11,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 21:28:11,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 21:28:11,738 INFO L87 Difference]: Start difference. First operand has 107 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 63 states have internal predecessors, (88), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:11,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:11,771 INFO L93 Difference]: Finished difference Result 207 states and 380 transitions. [2024-11-08 21:28:11,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 21:28:11,774 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 256 [2024-11-08 21:28:11,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:11,816 INFO L225 Difference]: With dead ends: 207 [2024-11-08 21:28:11,820 INFO L226 Difference]: Without dead ends: 103 [2024-11-08 21:28:11,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 21:28:11,830 INFO L432 NwaCegarLoop]: 165 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, 165 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 [2024-11-08 21:28:11,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 21:28:11,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-08 21:28:11,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-08 21:28:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 59 states have internal predecessors, (81), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-08 21:28:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 165 transitions. [2024-11-08 21:28:11,928 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 165 transitions. Word has length 256 [2024-11-08 21:28:11,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:11,929 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 165 transitions. [2024-11-08 21:28:11,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:11,931 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 165 transitions. [2024-11-08 21:28:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-08 21:28:11,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:11,937 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:11,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 21:28:11,937 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:11,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:11,940 INFO L85 PathProgramCache]: Analyzing trace with hash 2024155708, now seen corresponding path program 1 times [2024-11-08 21:28:11,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:11,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206441221] [2024-11-08 21:28:11,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:11,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:12,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:28:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:12,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:28:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:12,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:28:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:12,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:28:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:12,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:28:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:12,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:28:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:28:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:28:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:28:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:28:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:28:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:28:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:28:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:28:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 21:28:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:28:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:28:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 21:28:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:28:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 21:28:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:28:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:28:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:28:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:28:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 21:28:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:28:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 21:28:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:28:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 21:28:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-08 21:28:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-08 21:28:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-08 21:28:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-08 21:28:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 21:28:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-08 21:28:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-08 21:28:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-08 21:28:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-08 21:28:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-08 21:28:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 21:28:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-08 21:28:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-11-08 21:28:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-08 21:28:13,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:13,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206441221] [2024-11-08 21:28:13,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206441221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:28:13,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:28:13,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 21:28:13,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408166780] [2024-11-08 21:28:13,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:28:13,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 21:28:13,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:13,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 21:28:13,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:28:13,222 INFO L87 Difference]: Start difference. First operand 103 states and 165 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-08 21:28:13,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:13,560 INFO L93 Difference]: Finished difference Result 304 states and 490 transitions. [2024-11-08 21:28:13,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 21:28:13,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 256 [2024-11-08 21:28:13,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:13,564 INFO L225 Difference]: With dead ends: 304 [2024-11-08 21:28:13,564 INFO L226 Difference]: Without dead ends: 204 [2024-11-08 21:28:13,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 21:28:13,566 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 84 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:13,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 524 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 21:28:13,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-08 21:28:13,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 174. [2024-11-08 21:28:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 87 states have (on average 1.2528735632183907) internal successors, (109), 87 states have internal predecessors, (109), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-08 21:28:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 277 transitions. [2024-11-08 21:28:13,598 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 277 transitions. Word has length 256 [2024-11-08 21:28:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:13,598 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 277 transitions. [2024-11-08 21:28:13,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-08 21:28:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 277 transitions. [2024-11-08 21:28:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-08 21:28:13,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:13,602 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:13,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 21:28:13,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:13,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:13,603 INFO L85 PathProgramCache]: Analyzing trace with hash 628279844, now seen corresponding path program 1 times [2024-11-08 21:28:13,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:13,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509724103] [2024-11-08 21:28:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:13,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:28:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:28:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:28:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:28:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:28:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:28:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:28:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:28:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:28:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:28:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:28:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:28:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:28:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:28:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 21:28:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:28:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:28:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 21:28:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:28:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 21:28:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:28:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:28:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:28:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:28:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 21:28:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:28:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 21:28:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:28:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 21:28:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-08 21:28:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-08 21:28:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-08 21:28:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-08 21:28:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 21:28:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-08 21:28:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-08 21:28:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-08 21:28:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-08 21:28:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-08 21:28:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 21:28:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-08 21:28:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-11-08 21:28:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 18 proven. 105 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2024-11-08 21:28:14,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:14,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509724103] [2024-11-08 21:28:14,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509724103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 21:28:14,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410075704] [2024-11-08 21:28:14,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:14,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:14,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:28:14,412 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) [2024-11-08 21:28:14,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 21:28:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:14,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 21:28:14,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 21:28:15,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 893 proven. 105 refuted. 0 times theorem prover too weak. 2446 trivial. 0 not checked. [2024-11-08 21:28:15,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 21:28:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 18 proven. 105 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2024-11-08 21:28:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410075704] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 21:28:15,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 21:28:15,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 8] total 21 [2024-11-08 21:28:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848200741] [2024-11-08 21:28:15,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 21:28:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 21:28:15,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:15,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 21:28:15,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-08 21:28:15,936 INFO L87 Difference]: Start difference. First operand 174 states and 277 transitions. Second operand has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 5 states have call successors, (126), 3 states have call predecessors, (126), 6 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) [2024-11-08 21:28:20,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:20,825 INFO L93 Difference]: Finished difference Result 1195 states and 1795 transitions. [2024-11-08 21:28:20,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2024-11-08 21:28:20,826 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 5 states have call successors, (126), 3 states have call predecessors, (126), 6 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) Word has length 257 [2024-11-08 21:28:20,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:20,834 INFO L225 Difference]: With dead ends: 1195 [2024-11-08 21:28:20,835 INFO L226 Difference]: Without dead ends: 1095 [2024-11-08 21:28:20,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5461 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=3019, Invalid=11023, Unknown=0, NotChecked=0, Total=14042 [2024-11-08 21:28:20,840 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 830 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 4357 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 4941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 4357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:20,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 2363 Invalid, 4941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 4357 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 21:28:20,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-11-08 21:28:20,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 625. [2024-11-08 21:28:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 371 states have (on average 1.3423180592991915) internal successors, (498), 376 states have internal predecessors, (498), 235 states have call successors, (235), 18 states have call predecessors, (235), 18 states have return successors, (235), 230 states have call predecessors, (235), 235 states have call successors, (235) [2024-11-08 21:28:20,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 968 transitions. [2024-11-08 21:28:20,924 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 968 transitions. Word has length 257 [2024-11-08 21:28:20,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:20,925 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 968 transitions. [2024-11-08 21:28:20,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 5 states have call successors, (126), 3 states have call predecessors, (126), 6 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) [2024-11-08 21:28:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 968 transitions. [2024-11-08 21:28:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-08 21:28:20,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:20,928 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:20,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 21:28:21,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:21,130 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:21,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash -392788510, now seen corresponding path program 1 times [2024-11-08 21:28:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:21,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262914636] [2024-11-08 21:28:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:21,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:21,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:28:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:21,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:28:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:21,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:28:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:21,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:28:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:21,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:28:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:21,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:28:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:28:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:28:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:28:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:28:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:28:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:28:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:28:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:28:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 21:28:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:28:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:28:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 21:28:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:28:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 21:28:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:28:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:28:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:28:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:28:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 21:28:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:28:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 21:28:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:28:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 21:28:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-08 21:28:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-08 21:28:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-08 21:28:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-08 21:28:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 21:28:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-08 21:28:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-08 21:28:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-08 21:28:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-08 21:28:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-08 21:28:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 21:28:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-08 21:28:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-11-08 21:28:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-08 21:28:22,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:22,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262914636] [2024-11-08 21:28:22,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262914636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:28:22,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:28:22,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 21:28:22,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061127141] [2024-11-08 21:28:22,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:28:22,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 21:28:22,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:22,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 21:28:22,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 21:28:22,392 INFO L87 Difference]: Start difference. First operand 625 states and 968 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-08 21:28:23,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:23,357 INFO L93 Difference]: Finished difference Result 1353 states and 2094 transitions. [2024-11-08 21:28:23,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 21:28:23,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 257 [2024-11-08 21:28:23,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:23,365 INFO L225 Difference]: With dead ends: 1353 [2024-11-08 21:28:23,368 INFO L226 Difference]: Without dead ends: 810 [2024-11-08 21:28:23,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-08 21:28:23,371 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 429 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:23,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 504 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 21:28:23,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-08 21:28:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 776. [2024-11-08 21:28:23,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 473 states have (on average 1.3636363636363635) internal successors, (645), 479 states have internal predecessors, (645), 279 states have call successors, (279), 23 states have call predecessors, (279), 23 states have return successors, (279), 273 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-08 21:28:23,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1203 transitions. [2024-11-08 21:28:23,474 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1203 transitions. Word has length 257 [2024-11-08 21:28:23,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:23,475 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 1203 transitions. [2024-11-08 21:28:23,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-08 21:28:23,475 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1203 transitions. [2024-11-08 21:28:23,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-08 21:28:23,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:23,477 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:23,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 21:28:23,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:23,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:23,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1601356196, now seen corresponding path program 1 times [2024-11-08 21:28:23,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:23,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378632614] [2024-11-08 21:28:23,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:23,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 21:28:23,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620879014] [2024-11-08 21:28:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:23,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:23,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:28:23,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 21:28:23,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 21:28:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:23,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 21:28:23,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 21:28:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1163 proven. 24 refuted. 0 times theorem prover too weak. 2257 trivial. 0 not checked. [2024-11-08 21:28:24,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 21:28:25,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:25,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378632614] [2024-11-08 21:28:25,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 21:28:25,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620879014] [2024-11-08 21:28:25,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620879014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 21:28:25,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 21:28:25,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-08 21:28:25,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310544962] [2024-11-08 21:28:25,585 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 21:28:25,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 21:28:25,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:25,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 21:28:25,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-08 21:28:25,587 INFO L87 Difference]: Start difference. First operand 776 states and 1203 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:27,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:27,122 INFO L93 Difference]: Finished difference Result 1736 states and 2633 transitions. [2024-11-08 21:28:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 21:28:27,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 257 [2024-11-08 21:28:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:27,128 INFO L225 Difference]: With dead ends: 1736 [2024-11-08 21:28:27,128 INFO L226 Difference]: Without dead ends: 1042 [2024-11-08 21:28:27,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=295, Invalid=697, Unknown=0, NotChecked=0, Total=992 [2024-11-08 21:28:27,131 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 334 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 297 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:27,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 736 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 907 Invalid, 8 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 21:28:27,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-08 21:28:27,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 793. [2024-11-08 21:28:27,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 486 states have (on average 1.3559670781893005) internal successors, (659), 492 states have internal predecessors, (659), 279 states have call successors, (279), 27 states have call predecessors, (279), 27 states have return successors, (279), 273 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-08 21:28:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1217 transitions. [2024-11-08 21:28:27,195 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1217 transitions. Word has length 257 [2024-11-08 21:28:27,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:27,197 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1217 transitions. [2024-11-08 21:28:27,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1217 transitions. [2024-11-08 21:28:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-08 21:28:27,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:27,202 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:27,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 21:28:27,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:27,403 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:27,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2083199769, now seen corresponding path program 1 times [2024-11-08 21:28:27,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:27,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815656488] [2024-11-08 21:28:27,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:27,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:28:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:28:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:28:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:28:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:28:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:28:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:28:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:28:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:28:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:28:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:28:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:28:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:28:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:28:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 21:28:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:28:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:28:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 21:28:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:28:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 21:28:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:28:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:28:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:28:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:28:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 21:28:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:28:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 21:28:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:28:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 21:28:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-08 21:28:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-08 21:28:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-08 21:28:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-08 21:28:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 21:28:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-08 21:28:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-08 21:28:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-08 21:28:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-08 21:28:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-08 21:28:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 21:28:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-08 21:28:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-11-08 21:28:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 84 proven. 39 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2024-11-08 21:28:27,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:27,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815656488] [2024-11-08 21:28:27,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815656488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 21:28:27,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089252681] [2024-11-08 21:28:27,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:27,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:27,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:28:27,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 21:28:27,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 21:28:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:27,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 21:28:27,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 21:28:27,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1553 proven. 39 refuted. 0 times theorem prover too weak. 1852 trivial. 0 not checked. [2024-11-08 21:28:27,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 21:28:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 84 proven. 39 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2024-11-08 21:28:28,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089252681] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 21:28:28,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 21:28:28,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-08 21:28:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752697942] [2024-11-08 21:28:28,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 21:28:28,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 21:28:28,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 21:28:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 21:28:28,197 INFO L87 Difference]: Start difference. First operand 793 states and 1217 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-08 21:28:28,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:28,466 INFO L93 Difference]: Finished difference Result 1566 states and 2371 transitions. [2024-11-08 21:28:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 21:28:28,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 258 [2024-11-08 21:28:28,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:28,471 INFO L225 Difference]: With dead ends: 1566 [2024-11-08 21:28:28,472 INFO L226 Difference]: Without dead ends: 863 [2024-11-08 21:28:28,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 596 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-08 21:28:28,474 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 140 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:28,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 261 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 21:28:28,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-08 21:28:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 817. [2024-11-08 21:28:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 504 states have (on average 1.3075396825396826) internal successors, (659), 510 states have internal predecessors, (659), 279 states have call successors, (279), 33 states have call predecessors, (279), 33 states have return successors, (279), 273 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-08 21:28:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1217 transitions. [2024-11-08 21:28:28,538 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1217 transitions. Word has length 258 [2024-11-08 21:28:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:28,539 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1217 transitions. [2024-11-08 21:28:28,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-08 21:28:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1217 transitions. [2024-11-08 21:28:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-08 21:28:28,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:28,541 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:28,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 21:28:28,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:28,746 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:28,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:28,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1531709157, now seen corresponding path program 1 times [2024-11-08 21:28:28,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:28,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786700147] [2024-11-08 21:28:28,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:28,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 21:28:28,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118051722] [2024-11-08 21:28:28,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:28,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:28,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:28:28,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 21:28:28,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 21:28:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:29,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 21:28:29,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 21:28:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1163 proven. 24 refuted. 0 times theorem prover too weak. 2257 trivial. 0 not checked. [2024-11-08 21:28:29,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 21:28:38,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:38,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786700147] [2024-11-08 21:28:38,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 21:28:38,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118051722] [2024-11-08 21:28:38,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118051722] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 21:28:38,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 21:28:38,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-08 21:28:38,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397610653] [2024-11-08 21:28:38,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 21:28:38,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 21:28:38,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:38,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 21:28:38,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=113, Unknown=2, NotChecked=0, Total=156 [2024-11-08 21:28:38,881 INFO L87 Difference]: Start difference. First operand 817 states and 1217 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:43,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:43,799 INFO L93 Difference]: Finished difference Result 2473 states and 3603 transitions. [2024-11-08 21:28:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 21:28:43,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 258 [2024-11-08 21:28:43,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:43,812 INFO L225 Difference]: With dead ends: 2473 [2024-11-08 21:28:43,813 INFO L226 Difference]: Without dead ends: 1750 [2024-11-08 21:28:43,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=383, Invalid=947, Unknown=2, NotChecked=0, Total=1332 [2024-11-08 21:28:43,818 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 360 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 174 mSolverCounterUnsat, 59 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 59 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:43,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 857 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 944 Invalid, 59 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 21:28:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2024-11-08 21:28:43,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1480. [2024-11-08 21:28:43,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 901 states have (on average 1.2785793562708103) internal successors, (1152), 911 states have internal predecessors, (1152), 511 states have call successors, (511), 67 states have call predecessors, (511), 67 states have return successors, (511), 501 states have call predecessors, (511), 511 states have call successors, (511) [2024-11-08 21:28:43,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 2174 transitions. [2024-11-08 21:28:43,980 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 2174 transitions. Word has length 258 [2024-11-08 21:28:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:43,981 INFO L471 AbstractCegarLoop]: Abstraction has 1480 states and 2174 transitions. [2024-11-08 21:28:43,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 2174 transitions. [2024-11-08 21:28:43,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-08 21:28:43,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:43,983 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:43,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 21:28:44,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:44,184 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:44,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:44,185 INFO L85 PathProgramCache]: Analyzing trace with hash -835943698, now seen corresponding path program 1 times [2024-11-08 21:28:44,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:44,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867140389] [2024-11-08 21:28:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:44,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:28:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:28:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:28:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:28:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:28:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:28:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:28:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:28:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:28:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 21:28:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 21:28:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 21:28:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 21:28:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 21:28:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 21:28:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:28:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:28:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 21:28:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:28:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 21:28:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:28:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 21:28:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 21:28:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 21:28:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 21:28:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 21:28:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 21:28:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 21:28:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 21:28:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-08 21:28:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-08 21:28:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-08 21:28:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-08 21:28:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 21:28:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-08 21:28:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-08 21:28:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-08 21:28:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-08 21:28:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:46,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-08 21:28:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:47,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 21:28:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:47,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-08 21:28:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:47,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-11-08 21:28:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:47,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-08 21:28:47,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:47,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867140389] [2024-11-08 21:28:47,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867140389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:28:47,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:28:47,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 21:28:47,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468718717] [2024-11-08 21:28:47,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:28:47,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 21:28:47,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:47,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 21:28:47,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 21:28:47,045 INFO L87 Difference]: Start difference. First operand 1480 states and 2174 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-08 21:28:49,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:49,322 INFO L93 Difference]: Finished difference Result 3833 states and 5610 transitions. [2024-11-08 21:28:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 21:28:49,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 258 [2024-11-08 21:28:49,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:49,335 INFO L225 Difference]: With dead ends: 3833 [2024-11-08 21:28:49,335 INFO L226 Difference]: Without dead ends: 2447 [2024-11-08 21:28:49,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-08 21:28:49,341 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 601 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:49,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 718 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 21:28:49,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2024-11-08 21:28:49,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2185. [2024-11-08 21:28:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 1416 states have (on average 1.3192090395480225) internal successors, (1868), 1440 states have internal predecessors, (1868), 675 states have call successors, (675), 93 states have call predecessors, (675), 93 states have return successors, (675), 651 states have call predecessors, (675), 675 states have call successors, (675) [2024-11-08 21:28:49,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 3218 transitions. [2024-11-08 21:28:49,567 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 3218 transitions. Word has length 258 [2024-11-08 21:28:49,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:49,569 INFO L471 AbstractCegarLoop]: Abstraction has 2185 states and 3218 transitions. [2024-11-08 21:28:49,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-08 21:28:49,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 3218 transitions. [2024-11-08 21:28:49,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-08 21:28:49,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:49,570 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:49,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 21:28:49,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:49,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:49,571 INFO L85 PathProgramCache]: Analyzing trace with hash 157234585, now seen corresponding path program 1 times [2024-11-08 21:28:49,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:49,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743429652] [2024-11-08 21:28:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:49,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 21:28:49,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819871982] [2024-11-08 21:28:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:49,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:49,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:28:49,670 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 21:28:49,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 21:28:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:49,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 21:28:49,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 21:28:50,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1163 proven. 24 refuted. 0 times theorem prover too weak. 2257 trivial. 0 not checked. [2024-11-08 21:28:50,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 21:28:56,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:28:56,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743429652] [2024-11-08 21:28:56,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 21:28:56,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819871982] [2024-11-08 21:28:56,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819871982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 21:28:56,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 21:28:56,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-08 21:28:56,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609448462] [2024-11-08 21:28:56,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 21:28:56,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 21:28:56,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:28:56,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 21:28:56,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2024-11-08 21:28:56,471 INFO L87 Difference]: Start difference. First operand 2185 states and 3218 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:28:59,254 INFO L93 Difference]: Finished difference Result 4895 states and 7126 transitions. [2024-11-08 21:28:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 21:28:59,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 258 [2024-11-08 21:28:59,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:28:59,268 INFO L225 Difference]: With dead ends: 4895 [2024-11-08 21:28:59,268 INFO L226 Difference]: Without dead ends: 2808 [2024-11-08 21:28:59,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=146, Invalid=315, Unknown=1, NotChecked=0, Total=462 [2024-11-08 21:28:59,274 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 172 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 106 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 21:28:59,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 707 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 663 Invalid, 7 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 21:28:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2024-11-08 21:28:59,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2183. [2024-11-08 21:28:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1414 states have (on average 1.3182461103253182) internal successors, (1864), 1438 states have internal predecessors, (1864), 675 states have call successors, (675), 93 states have call predecessors, (675), 93 states have return successors, (675), 651 states have call predecessors, (675), 675 states have call successors, (675) [2024-11-08 21:28:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 3214 transitions. [2024-11-08 21:28:59,472 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 3214 transitions. Word has length 258 [2024-11-08 21:28:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:28:59,473 INFO L471 AbstractCegarLoop]: Abstraction has 2183 states and 3214 transitions. [2024-11-08 21:28:59,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-08 21:28:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 3214 transitions. [2024-11-08 21:28:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-08 21:28:59,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:28:59,475 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:28:59,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 21:28:59,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:59,680 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:28:59,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:28:59,681 INFO L85 PathProgramCache]: Analyzing trace with hash 853000044, now seen corresponding path program 1 times [2024-11-08 21:28:59,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:28:59,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796827626] [2024-11-08 21:28:59,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:59,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:28:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 21:28:59,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237695249] [2024-11-08 21:28:59,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:28:59,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:28:59,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:28:59,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 21:28:59,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 21:28:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:28:59,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 21:28:59,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 21:29:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 581 proven. 330 refuted. 0 times theorem prover too weak. 2533 trivial. 0 not checked. [2024-11-08 21:29:06,495 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 21:29:15,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:29:15,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796827626] [2024-11-08 21:29:15,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 21:29:15,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237695249] [2024-11-08 21:29:15,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237695249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 21:29:15,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 21:29:15,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-08 21:29:15,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698942802] [2024-11-08 21:29:15,262 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 21:29:15,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 21:29:15,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:29:15,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 21:29:15,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=256, Unknown=1, NotChecked=0, Total=342 [2024-11-08 21:29:15,263 INFO L87 Difference]: Start difference. First operand 2183 states and 3214 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-08 21:29:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:29:32,053 INFO L93 Difference]: Finished difference Result 4651 states and 6799 transitions. [2024-11-08 21:29:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-08 21:29:32,058 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 258 [2024-11-08 21:29:32,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:29:32,071 INFO L225 Difference]: With dead ends: 4651 [2024-11-08 21:29:32,071 INFO L226 Difference]: Without dead ends: 2561 [2024-11-08 21:29:32,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1084 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=939, Invalid=2966, Unknown=1, NotChecked=0, Total=3906 [2024-11-08 21:29:32,078 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 556 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-08 21:29:32,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1092 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-08 21:29:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2024-11-08 21:29:32,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2151. [2024-11-08 21:29:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 1389 states have (on average 1.3138948884089272) internal successors, (1825), 1411 states have internal predecessors, (1825), 669 states have call successors, (669), 92 states have call predecessors, (669), 92 states have return successors, (669), 647 states have call predecessors, (669), 669 states have call successors, (669) [2024-11-08 21:29:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3163 transitions. [2024-11-08 21:29:32,322 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3163 transitions. Word has length 258 [2024-11-08 21:29:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:29:32,323 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 3163 transitions. [2024-11-08 21:29:32,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-08 21:29:32,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3163 transitions. [2024-11-08 21:29:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-08 21:29:32,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:29:32,324 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:29:32,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 21:29:32,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:29:32,525 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:29:32,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:29:32,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1966325257, now seen corresponding path program 1 times [2024-11-08 21:29:32,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:29:32,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759656748] [2024-11-08 21:29:32,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:29:32,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:29:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 21:29:32,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310621865] [2024-11-08 21:29:32,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:29:32,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 21:29:32,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:29:32,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 21:29:32,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 21:29:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:29:32,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 21:29:32,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 21:29:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1529 proven. 135 refuted. 0 times theorem prover too weak. 1780 trivial. 0 not checked. [2024-11-08 21:29:36,393 INFO L311 TraceCheckSpWp]: Computing backward predicates...