./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-11.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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-pr-ci_file-11.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 b879c59582ac4a49c0e2ecf86f8757548b6309c2a4170b8da4007bca733fddea --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 05:23:40,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 05:23:40,277 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 05:23:40,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 05:23:40,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 05:23:40,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 05:23:40,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 05:23:40,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 05:23:40,312 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 05:23:40,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 05:23:40,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 05:23:40,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 05:23:40,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 05:23:40,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 05:23:40,316 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 05:23:40,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 05:23:40,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 05:23:40,320 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 05:23:40,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 05:23:40,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 05:23:40,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 05:23:40,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 05:23:40,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 05:23:40,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 05:23:40,322 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 05:23:40,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 05:23:40,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 05:23:40,329 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 05:23:40,329 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 05:23:40,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 05:23:40,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 05:23:40,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 05:23:40,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 05:23:40,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 05:23:40,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 05:23:40,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 05:23:40,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 05:23:40,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 05:23:40,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 05:23:40,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 05:23:40,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 05:23:40,337 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 05:23:40,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b879c59582ac4a49c0e2ecf86f8757548b6309c2a4170b8da4007bca733fddea [2024-11-10 05:23:40,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 05:23:40,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 05:23:40,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 05:23:40,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 05:23:40,653 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 05:23:40,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-11.i [2024-11-10 05:23:41,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 05:23:43,099 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 05:23:43,100 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-11.i [2024-11-10 05:23:43,116 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad04e83a/4d5f1f1ef0954e1f86181cd3870c81dd/FLAG9eac8331b [2024-11-10 05:23:43,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad04e83a/4d5f1f1ef0954e1f86181cd3870c81dd [2024-11-10 05:23:43,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 05:23:43,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 05:23:43,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 05:23:43,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 05:23:43,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 05:23:43,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2c5f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43, skipping insertion in model container [2024-11-10 05:23:43,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,173 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 05:23:43,347 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-pr-ci_file-11.i[919,932] [2024-11-10 05:23:43,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 05:23:43,454 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 05:23:43,469 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-pr-ci_file-11.i[919,932] [2024-11-10 05:23:43,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 05:23:43,539 INFO L204 MainTranslator]: Completed translation [2024-11-10 05:23:43,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43 WrapperNode [2024-11-10 05:23:43,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 05:23:43,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 05:23:43,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 05:23:43,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 05:23:43,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,604 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 210 [2024-11-10 05:23:43,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 05:23:43,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 05:23:43,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 05:23:43,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 05:23:43,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,658 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]. [2024-11-10 05:23:43,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,673 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 05:23:43,687 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 05:23:43,688 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 05:23:43,688 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 05:23:43,689 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (1/1) ... [2024-11-10 05:23:43,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 05:23:43,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 05:23:43,727 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) [2024-11-10 05:23:43,732 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 [2024-11-10 05:23:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 05:23:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 05:23:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 05:23:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 05:23:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 05:23:43,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 05:23:43,891 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 05:23:43,894 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 05:23:44,271 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-10 05:23:44,272 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 05:23:44,300 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 05:23:44,300 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 05:23:44,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:23:44 BoogieIcfgContainer [2024-11-10 05:23:44,301 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 05:23:44,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 05:23:44,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 05:23:44,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 05:23:44,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:23:43" (1/3) ... [2024-11-10 05:23:44,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125c996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:23:44, skipping insertion in model container [2024-11-10 05:23:44,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:23:43" (2/3) ... [2024-11-10 05:23:44,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125c996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:23:44, skipping insertion in model container [2024-11-10 05:23:44,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:23:44" (3/3) ... [2024-11-10 05:23:44,311 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-11.i [2024-11-10 05:23:44,324 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 05:23:44,324 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 05:23:44,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 05:23:44,388 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;@69ad3da5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 05:23:44,389 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 05:23:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 64 states have (on average 1.484375) internal successors, (95), 65 states have internal predecessors, (95), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-10 05:23:44,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-10 05:23:44,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:44,409 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:44,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:44,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:44,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1640027000, now seen corresponding path program 1 times [2024-11-10 05:23:44,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:44,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556277934] [2024-11-10 05:23:44,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:44,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:44,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:45,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:45,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 05:23:45,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:45,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556277934] [2024-11-10 05:23:45,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556277934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:23:45,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:23:45,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 05:23:45,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850723985] [2024-11-10 05:23:45,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:23:45,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 05:23:45,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:45,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 05:23:45,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 05:23:45,080 INFO L87 Difference]: Start difference. First operand has 91 states, 64 states have (on average 1.484375) internal successors, (95), 65 states have internal predecessors, (95), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-10 05:23:45,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:45,129 INFO L93 Difference]: Finished difference Result 174 states and 303 transitions. [2024-11-10 05:23:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 05:23:45,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 158 [2024-11-10 05:23:45,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:45,140 INFO L225 Difference]: With dead ends: 174 [2024-11-10 05:23:45,140 INFO L226 Difference]: Without dead ends: 86 [2024-11-10 05:23:45,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 05:23:45,147 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:45,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 05:23:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-10 05:23:45,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-10 05:23:45,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-10 05:23:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 133 transitions. [2024-11-10 05:23:45,205 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 133 transitions. Word has length 158 [2024-11-10 05:23:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:45,206 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 133 transitions. [2024-11-10 05:23:45,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-10 05:23:45,207 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 133 transitions. [2024-11-10 05:23:45,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-10 05:23:45,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:45,211 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:45,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 05:23:45,212 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:45,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:45,212 INFO L85 PathProgramCache]: Analyzing trace with hash -111759686, now seen corresponding path program 1 times [2024-11-10 05:23:45,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:45,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805697110] [2024-11-10 05:23:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:45,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 05:23:46,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:46,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805697110] [2024-11-10 05:23:46,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805697110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:23:46,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:23:46,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 05:23:46,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985480441] [2024-11-10 05:23:46,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:23:46,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 05:23:46,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:46,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 05:23:46,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:23:46,472 INFO L87 Difference]: Start difference. First operand 86 states and 133 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:46,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:46,589 INFO L93 Difference]: Finished difference Result 199 states and 307 transitions. [2024-11-10 05:23:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 05:23:46,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 160 [2024-11-10 05:23:46,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:46,592 INFO L225 Difference]: With dead ends: 199 [2024-11-10 05:23:46,595 INFO L226 Difference]: Without dead ends: 116 [2024-11-10 05:23:46,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:23:46,598 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 124 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:46,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 272 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 05:23:46,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-10 05:23:46,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 100. [2024-11-10 05:23:46,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 74 states have (on average 1.445945945945946) internal successors, (107), 74 states have internal predecessors, (107), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-10 05:23:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 155 transitions. [2024-11-10 05:23:46,626 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 155 transitions. Word has length 160 [2024-11-10 05:23:46,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:46,628 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 155 transitions. [2024-11-10 05:23:46,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 155 transitions. [2024-11-10 05:23:46,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-10 05:23:46,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:46,633 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:46,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 05:23:46,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:46,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:46,634 INFO L85 PathProgramCache]: Analyzing trace with hash 17323033, now seen corresponding path program 1 times [2024-11-10 05:23:46,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:46,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873196156] [2024-11-10 05:23:46,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:46,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 05:23:47,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:47,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873196156] [2024-11-10 05:23:47,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873196156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:23:47,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:23:47,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 05:23:47,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378786050] [2024-11-10 05:23:47,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:23:47,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 05:23:47,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:47,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 05:23:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:23:47,238 INFO L87 Difference]: Start difference. First operand 100 states and 155 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:47,497 INFO L93 Difference]: Finished difference Result 296 states and 461 transitions. [2024-11-10 05:23:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 05:23:47,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 160 [2024-11-10 05:23:47,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:47,501 INFO L225 Difference]: With dead ends: 296 [2024-11-10 05:23:47,501 INFO L226 Difference]: Without dead ends: 199 [2024-11-10 05:23:47,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 05:23:47,503 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 102 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:47,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 441 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 05:23:47,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-10 05:23:47,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 145. [2024-11-10 05:23:47,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 94 states have (on average 1.351063829787234) internal successors, (127), 94 states have internal predecessors, (127), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-10 05:23:47,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 223 transitions. [2024-11-10 05:23:47,549 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 223 transitions. Word has length 160 [2024-11-10 05:23:47,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:47,550 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 223 transitions. [2024-11-10 05:23:47,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 223 transitions. [2024-11-10 05:23:47,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-10 05:23:47,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:47,558 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:47,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 05:23:47,558 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:47,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:47,559 INFO L85 PathProgramCache]: Analyzing trace with hash 317786376, now seen corresponding path program 1 times [2024-11-10 05:23:47,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:47,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418873078] [2024-11-10 05:23:47,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:47,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 05:23:47,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:47,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418873078] [2024-11-10 05:23:47,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418873078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:23:47,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:23:47,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 05:23:47,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12667851] [2024-11-10 05:23:47,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:23:47,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 05:23:47,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:47,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 05:23:47,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 05:23:47,986 INFO L87 Difference]: Start difference. First operand 145 states and 223 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:48,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:48,093 INFO L93 Difference]: Finished difference Result 304 states and 468 transitions. [2024-11-10 05:23:48,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 05:23:48,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 161 [2024-11-10 05:23:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:48,096 INFO L225 Difference]: With dead ends: 304 [2024-11-10 05:23:48,099 INFO L226 Difference]: Without dead ends: 207 [2024-11-10 05:23:48,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:23:48,101 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 59 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:48,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 372 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 05:23:48,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-10 05:23:48,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 203. [2024-11-10 05:23:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 147 states have (on average 1.4081632653061225) internal successors, (207), 148 states have internal predecessors, (207), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-10 05:23:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 311 transitions. [2024-11-10 05:23:48,143 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 311 transitions. Word has length 161 [2024-11-10 05:23:48,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:48,144 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 311 transitions. [2024-11-10 05:23:48,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 311 transitions. [2024-11-10 05:23:48,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-10 05:23:48,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:48,148 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:48,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 05:23:48,149 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:48,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:48,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1173656188, now seen corresponding path program 1 times [2024-11-10 05:23:48,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:48,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834276279] [2024-11-10 05:23:48,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:48,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 9 proven. 60 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-10 05:23:48,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:48,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834276279] [2024-11-10 05:23:48,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834276279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 05:23:48,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080091768] [2024-11-10 05:23:48,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:48,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:23:48,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 05:23:48,729 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) [2024-11-10 05:23:48,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 05:23:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:48,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 05:23:48,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 05:23:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 699 proven. 69 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-10 05:23:49,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 05:23:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 63 proven. 72 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2024-11-10 05:23:49,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080091768] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 05:23:49,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 05:23:49,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 14 [2024-11-10 05:23:49,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267472842] [2024-11-10 05:23:49,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 05:23:49,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 05:23:49,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:49,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 05:23:49,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-10 05:23:49,655 INFO L87 Difference]: Start difference. First operand 203 states and 311 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 5 states have call successors, (62), 3 states have call predecessors, (62), 7 states have return successors, (64), 5 states have call predecessors, (64), 5 states have call successors, (64) [2024-11-10 05:23:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:50,233 INFO L93 Difference]: Finished difference Result 336 states and 493 transitions. [2024-11-10 05:23:50,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-10 05:23:50,234 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 5 states have call successors, (62), 3 states have call predecessors, (62), 7 states have return successors, (64), 5 states have call predecessors, (64), 5 states have call successors, (64) Word has length 162 [2024-11-10 05:23:50,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:50,236 INFO L225 Difference]: With dead ends: 336 [2024-11-10 05:23:50,236 INFO L226 Difference]: Without dead ends: 181 [2024-11-10 05:23:50,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 363 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2024-11-10 05:23:50,241 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 217 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:50,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 219 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 05:23:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-10 05:23:50,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 169. [2024-11-10 05:23:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 112 states have (on average 1.2678571428571428) internal successors, (142), 112 states have internal predecessors, (142), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-10 05:23:50,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 238 transitions. [2024-11-10 05:23:50,279 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 238 transitions. Word has length 162 [2024-11-10 05:23:50,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:50,279 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 238 transitions. [2024-11-10 05:23:50,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 5 states have call successors, (62), 3 states have call predecessors, (62), 7 states have return successors, (64), 5 states have call predecessors, (64), 5 states have call successors, (64) [2024-11-10 05:23:50,280 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 238 transitions. [2024-11-10 05:23:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-10 05:23:50,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:50,285 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:50,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 05:23:50,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:23:50,486 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:50,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:50,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1421874695, now seen corresponding path program 1 times [2024-11-10 05:23:50,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:50,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751762004] [2024-11-10 05:23:50,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:50,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:50,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 05:23:50,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:50,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751762004] [2024-11-10 05:23:50,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751762004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:23:50,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:23:50,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 05:23:50,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73439716] [2024-11-10 05:23:50,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:23:50,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 05:23:50,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:50,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 05:23:50,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 05:23:50,883 INFO L87 Difference]: Start difference. First operand 169 states and 238 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:50,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:50,961 INFO L93 Difference]: Finished difference Result 272 states and 380 transitions. [2024-11-10 05:23:50,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 05:23:50,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 162 [2024-11-10 05:23:50,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:50,965 INFO L225 Difference]: With dead ends: 272 [2024-11-10 05:23:50,966 INFO L226 Difference]: Without dead ends: 163 [2024-11-10 05:23:50,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:23:50,968 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 105 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:50,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 259 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 05:23:50,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-10 05:23:51,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-10 05:23:51,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 104 states have (on average 1.1923076923076923) internal successors, (124), 104 states have internal predecessors, (124), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-10 05:23:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 220 transitions. [2024-11-10 05:23:51,004 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 220 transitions. Word has length 162 [2024-11-10 05:23:51,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:51,004 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 220 transitions. [2024-11-10 05:23:51,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:51,005 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 220 transitions. [2024-11-10 05:23:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-10 05:23:51,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:51,006 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:51,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 05:23:51,007 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:51,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:51,007 INFO L85 PathProgramCache]: Analyzing trace with hash 16301579, now seen corresponding path program 1 times [2024-11-10 05:23:51,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:51,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977455676] [2024-11-10 05:23:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:51,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 05:23:51,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:51,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977455676] [2024-11-10 05:23:51,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977455676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:23:51,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:23:51,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 05:23:51,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53681332] [2024-11-10 05:23:51,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:23:51,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 05:23:51,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:51,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 05:23:51,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 05:23:51,636 INFO L87 Difference]: Start difference. First operand 163 states and 220 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:52,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:52,053 INFO L93 Difference]: Finished difference Result 341 states and 458 transitions. [2024-11-10 05:23:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 05:23:52,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 163 [2024-11-10 05:23:52,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:52,056 INFO L225 Difference]: With dead ends: 341 [2024-11-10 05:23:52,057 INFO L226 Difference]: Without dead ends: 242 [2024-11-10 05:23:52,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 05:23:52,058 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 102 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:52,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 375 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 05:23:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-10 05:23:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 167. [2024-11-10 05:23:52,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 108 states have (on average 1.2037037037037037) internal successors, (130), 108 states have internal predecessors, (130), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-10 05:23:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 226 transitions. [2024-11-10 05:23:52,103 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 226 transitions. Word has length 163 [2024-11-10 05:23:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:52,103 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 226 transitions. [2024-11-10 05:23:52,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 226 transitions. [2024-11-10 05:23:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-10 05:23:52,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:52,105 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:52,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 05:23:52,106 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:52,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash 145384298, now seen corresponding path program 1 times [2024-11-10 05:23:52,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:52,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555216967] [2024-11-10 05:23:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:52,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 05:23:52,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:52,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555216967] [2024-11-10 05:23:52,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555216967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:23:52,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:23:52,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 05:23:52,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211122821] [2024-11-10 05:23:52,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:23:52,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 05:23:52,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:52,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 05:23:52,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 05:23:52,487 INFO L87 Difference]: Start difference. First operand 167 states and 226 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:52,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:52,573 INFO L93 Difference]: Finished difference Result 272 states and 373 transitions. [2024-11-10 05:23:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 05:23:52,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 163 [2024-11-10 05:23:52,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:52,576 INFO L225 Difference]: With dead ends: 272 [2024-11-10 05:23:52,576 INFO L226 Difference]: Without dead ends: 169 [2024-11-10 05:23:52,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 05:23:52,577 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:52,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 05:23:52,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-10 05:23:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-10 05:23:52,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 110 states have (on average 1.209090909090909) internal successors, (133), 110 states have internal predecessors, (133), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-10 05:23:52,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 229 transitions. [2024-11-10 05:23:52,616 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 229 transitions. Word has length 163 [2024-11-10 05:23:52,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:52,616 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 229 transitions. [2024-11-10 05:23:52,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-10 05:23:52,617 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 229 transitions. [2024-11-10 05:23:52,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-10 05:23:52,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:52,618 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:52,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 05:23:52,619 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:52,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:52,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1929750303, now seen corresponding path program 1 times [2024-11-10 05:23:52,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:52,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115913884] [2024-11-10 05:23:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:52,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:23:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:23:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:23:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:23:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:23:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:23:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:23:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:23:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:23:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:23:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:23:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:23:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:23:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:23:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:23:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:23:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:23:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:23:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:23:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:23:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:23:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:23:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:23:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:23:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 30 proven. 39 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-10 05:23:53,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:23:53,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115913884] [2024-11-10 05:23:53,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115913884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 05:23:53,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551617360] [2024-11-10 05:23:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:53,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:23:53,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 05:23:53,204 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) [2024-11-10 05:23:53,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 05:23:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:23:53,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 05:23:53,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 05:23:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 563 proven. 39 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-11-10 05:23:53,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 05:23:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 30 proven. 39 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-10 05:23:54,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551617360] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 05:23:54,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 05:23:54,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 14 [2024-11-10 05:23:54,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747920400] [2024-11-10 05:23:54,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 05:23:54,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 05:23:54,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:23:54,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 05:23:54,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-10 05:23:54,331 INFO L87 Difference]: Start difference. First operand 169 states and 229 transitions. Second operand has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 6 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (72), 6 states have call predecessors, (72), 6 states have call successors, (72) [2024-11-10 05:23:55,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:23:55,174 INFO L93 Difference]: Finished difference Result 529 states and 717 transitions. [2024-11-10 05:23:55,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 05:23:55,175 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 6 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (72), 6 states have call predecessors, (72), 6 states have call successors, (72) Word has length 164 [2024-11-10 05:23:55,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:23:55,178 INFO L225 Difference]: With dead ends: 529 [2024-11-10 05:23:55,181 INFO L226 Difference]: Without dead ends: 424 [2024-11-10 05:23:55,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2024-11-10 05:23:55,183 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 392 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 05:23:55,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 797 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 05:23:55,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-10 05:23:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 340. [2024-11-10 05:23:55,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 236 states have (on average 1.2542372881355932) internal successors, (296), 237 states have internal predecessors, (296), 82 states have call successors, (82), 21 states have call predecessors, (82), 21 states have return successors, (82), 81 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-10 05:23:55,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 460 transitions. [2024-11-10 05:23:55,260 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 460 transitions. Word has length 164 [2024-11-10 05:23:55,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:23:55,260 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 460 transitions. [2024-11-10 05:23:55,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 6 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (72), 6 states have call predecessors, (72), 6 states have call successors, (72) [2024-11-10 05:23:55,261 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 460 transitions. [2024-11-10 05:23:55,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-10 05:23:55,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:23:55,263 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:23:55,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 05:23:55,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-10 05:23:55,465 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:23:55,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:23:55,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1680586673, now seen corresponding path program 1 times [2024-11-10 05:23:55,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:23:55,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767963221] [2024-11-10 05:23:55,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:23:55,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:23:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:24:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:24:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:24:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:24:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:24:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:24:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:24:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:24:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:24:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:24:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:24:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:24:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:24:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:24:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:24:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:24:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:24:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:24:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:24:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:24:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:24:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:24:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:24:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:24:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 05:24:12,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:24:12,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767963221] [2024-11-10 05:24:12,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767963221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 05:24:12,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 05:24:12,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-10 05:24:12,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503662185] [2024-11-10 05:24:12,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 05:24:12,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 05:24:12,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:24:12,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 05:24:12,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-10 05:24:12,504 INFO L87 Difference]: Start difference. First operand 340 states and 460 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-10 05:24:40,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:24:40,970 INFO L93 Difference]: Finished difference Result 834 states and 1121 transitions. [2024-11-10 05:24:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 05:24:40,971 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 165 [2024-11-10 05:24:40,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:24:40,976 INFO L225 Difference]: With dead ends: 834 [2024-11-10 05:24:40,976 INFO L226 Difference]: Without dead ends: 668 [2024-11-10 05:24:40,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2024-11-10 05:24:40,977 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1030 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-10 05:24:40,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1258 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-10 05:24:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-10 05:24:41,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 361. [2024-11-10 05:24:41,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 256 states have (on average 1.26953125) internal successors, (325), 257 states have internal predecessors, (325), 82 states have call successors, (82), 22 states have call predecessors, (82), 22 states have return successors, (82), 81 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-10 05:24:41,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 489 transitions. [2024-11-10 05:24:41,052 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 489 transitions. Word has length 165 [2024-11-10 05:24:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:24:41,053 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 489 transitions. [2024-11-10 05:24:41,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-10 05:24:41,053 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 489 transitions. [2024-11-10 05:24:41,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-10 05:24:41,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:24:41,055 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:24:41,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 05:24:41,056 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:24:41,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:24:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1547839268, now seen corresponding path program 1 times [2024-11-10 05:24:41,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:24:41,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390229042] [2024-11-10 05:24:41,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:24:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:24:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:24:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:24:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:24:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:24:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:24:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:24:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:24:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:24:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:24:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:24:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:24:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:24:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:24:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:24:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:24:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:24:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:24:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:24:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:24:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:24:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:24:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:24:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:24:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:24:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 30 proven. 39 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-10 05:24:41,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:24:41,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390229042] [2024-11-10 05:24:41,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390229042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 05:24:41,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138885807] [2024-11-10 05:24:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:24:41,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:24:41,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 05:24:41,750 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) [2024-11-10 05:24:41,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 05:24:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:41,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-10 05:24:41,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 05:24:42,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 563 proven. 39 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-11-10 05:24:42,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 05:24:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 30 proven. 39 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-10 05:24:42,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138885807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 05:24:42,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 05:24:42,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 25 [2024-11-10 05:24:42,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447653372] [2024-11-10 05:24:42,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 05:24:42,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-10 05:24:42,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:24:42,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-10 05:24:42,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2024-11-10 05:24:42,725 INFO L87 Difference]: Start difference. First operand 361 states and 489 transitions. Second operand has 25 states, 25 states have (on average 4.6) internal successors, (115), 25 states have internal predecessors, (115), 6 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (72), 6 states have call predecessors, (72), 6 states have call successors, (72) [2024-11-10 05:24:44,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:24:44,965 INFO L93 Difference]: Finished difference Result 763 states and 1019 transitions. [2024-11-10 05:24:44,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-10 05:24:44,966 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.6) internal successors, (115), 25 states have internal predecessors, (115), 6 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (72), 6 states have call predecessors, (72), 6 states have call successors, (72) Word has length 165 [2024-11-10 05:24:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:24:44,969 INFO L225 Difference]: With dead ends: 763 [2024-11-10 05:24:44,970 INFO L226 Difference]: Without dead ends: 592 [2024-11-10 05:24:44,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=746, Invalid=3160, Unknown=0, NotChecked=0, Total=3906 [2024-11-10 05:24:44,972 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 1164 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 05:24:44,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 1718 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 05:24:44,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-10 05:24:45,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 368. [2024-11-10 05:24:45,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 260 states have (on average 1.25) internal successors, (325), 261 states have internal predecessors, (325), 82 states have call successors, (82), 25 states have call predecessors, (82), 25 states have return successors, (82), 81 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-10 05:24:45,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 489 transitions. [2024-11-10 05:24:45,054 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 489 transitions. Word has length 165 [2024-11-10 05:24:45,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:24:45,055 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 489 transitions. [2024-11-10 05:24:45,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.6) internal successors, (115), 25 states have internal predecessors, (115), 6 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (72), 6 states have call predecessors, (72), 6 states have call successors, (72) [2024-11-10 05:24:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 489 transitions. [2024-11-10 05:24:45,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-10 05:24:45,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:24:45,057 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:24:45,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 05:24:45,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:24:45,262 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:24:45,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:24:45,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1916975534, now seen corresponding path program 1 times [2024-11-10 05:24:45,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:24:45,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429077089] [2024-11-10 05:24:45,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:24:45,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:24:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:24:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:24:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:24:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:24:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:24:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:24:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:24:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:24:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:24:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:24:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:24:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:24:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:24:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:24:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:24:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:24:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:24:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:24:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:24:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:24:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:24:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:24:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:24:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:24:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 33 proven. 36 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-10 05:24:45,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:24:45,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429077089] [2024-11-10 05:24:45,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429077089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 05:24:45,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347805790] [2024-11-10 05:24:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:24:45,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:24:45,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 05:24:45,762 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) [2024-11-10 05:24:45,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 05:24:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:45,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 05:24:45,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 05:24:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 578 proven. 72 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-10 05:24:46,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 05:24:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 33 proven. 36 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-10 05:24:46,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347805790] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 05:24:46,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 05:24:46,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 5] total 14 [2024-11-10 05:24:46,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527047229] [2024-11-10 05:24:46,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 05:24:46,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 05:24:46,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:24:46,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 05:24:46,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-10 05:24:46,521 INFO L87 Difference]: Start difference. First operand 368 states and 489 transitions. Second operand has 14 states, 13 states have (on average 8.384615384615385) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (61), 3 states have call predecessors, (61), 5 states have return successors, (62), 7 states have call predecessors, (62), 7 states have call successors, (62) [2024-11-10 05:24:47,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 05:24:47,237 INFO L93 Difference]: Finished difference Result 679 states and 896 transitions. [2024-11-10 05:24:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-10 05:24:47,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.384615384615385) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (61), 3 states have call predecessors, (61), 5 states have return successors, (62), 7 states have call predecessors, (62), 7 states have call successors, (62) Word has length 165 [2024-11-10 05:24:47,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 05:24:47,241 INFO L225 Difference]: With dead ends: 679 [2024-11-10 05:24:47,241 INFO L226 Difference]: Without dead ends: 403 [2024-11-10 05:24:47,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-11-10 05:24:47,243 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 256 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 05:24:47,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 494 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 05:24:47,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-10 05:24:47,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 384. [2024-11-10 05:24:47,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.2316176470588236) internal successors, (335), 273 states have internal predecessors, (335), 82 states have call successors, (82), 29 states have call predecessors, (82), 29 states have return successors, (82), 81 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-10 05:24:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 499 transitions. [2024-11-10 05:24:47,327 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 499 transitions. Word has length 165 [2024-11-10 05:24:47,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 05:24:47,328 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 499 transitions. [2024-11-10 05:24:47,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.384615384615385) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (61), 3 states have call predecessors, (61), 5 states have return successors, (62), 7 states have call predecessors, (62), 7 states have call successors, (62) [2024-11-10 05:24:47,328 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 499 transitions. [2024-11-10 05:24:47,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-10 05:24:47,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 05:24:47,330 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 05:24:47,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 05:24:47,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:24:47,532 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 05:24:47,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 05:24:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1867457585, now seen corresponding path program 1 times [2024-11-10 05:24:47,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 05:24:47,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310113842] [2024-11-10 05:24:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:24:47,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 05:24:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 05:24:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 05:24:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 05:24:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 05:24:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 05:24:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 05:24:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 05:24:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 05:24:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 05:24:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 05:24:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 05:24:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 05:24:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 05:24:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 05:24:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 05:24:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 05:24:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 05:24:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 05:24:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 05:24:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 05:24:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 05:24:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 05:24:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-10 05:24:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 05:24:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 36 proven. 96 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-11-10 05:24:49,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 05:24:49,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310113842] [2024-11-10 05:24:49,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310113842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 05:24:49,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094136555] [2024-11-10 05:24:49,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 05:24:49,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 05:24:49,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 05:24:49,204 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) [2024-11-10 05:24:49,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 05:24:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 05:24:49,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-10 05:24:49,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 05:24:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 449 proven. 321 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-10 05:24:51,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 05:24:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 84 proven. 285 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2024-11-10 05:24:54,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094136555] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 05:24:54,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 05:24:54,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 25, 22] total 52 [2024-11-10 05:24:54,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999655790] [2024-11-10 05:24:54,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 05:24:54,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-10 05:24:54,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 05:24:54,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-10 05:24:54,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=636, Invalid=2016, Unknown=0, NotChecked=0, Total=2652 [2024-11-10 05:24:54,721 INFO L87 Difference]: Start difference. First operand 384 states and 499 transitions. Second operand has 52 states, 47 states have (on average 3.0425531914893615) internal successors, (143), 46 states have internal predecessors, (143), 18 states have call successors, (63), 8 states have call predecessors, (63), 15 states have return successors, (65), 17 states have call predecessors, (65), 18 states have call successors, (65)