./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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-ps-co_file-52.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 d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 04:17:41,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 04:17:41,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 04:17:41,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 04:17:41,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 04:17:41,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 04:17:41,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 04:17:41,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 04:17:41,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 04:17:41,294 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 04:17:41,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 04:17:41,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 04:17:41,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 04:17:41,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 04:17:41,296 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 04:17:41,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 04:17:41,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 04:17:41,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 04:17:41,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 04:17:41,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 04:17:41,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 04:17:41,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 04:17:41,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 04:17:41,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 04:17:41,303 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 04:17:41,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 04:17:41,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 04:17:41,303 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 04:17:41,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 04:17:41,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 04:17:41,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 04:17:41,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 04:17:41,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 04:17:41,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 04:17:41,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 04:17:41,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 04:17:41,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 04:17:41,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 04:17:41,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 04:17:41,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 04:17:41,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 04:17:41,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 04:17:41,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3 [2024-11-12 04:17:41,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 04:17:41,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 04:17:41,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 04:17:41,614 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 04:17:41,615 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 04:17:41,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-12 04:17:43,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 04:17:43,283 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 04:17:43,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-12 04:17:43,298 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b937758/5f44435242ef48a7a92e4e858b279e18/FLAGd3fdd3985 [2024-11-12 04:17:43,312 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b937758/5f44435242ef48a7a92e4e858b279e18 [2024-11-12 04:17:43,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 04:17:43,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 04:17:43,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 04:17:43,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 04:17:43,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 04:17:43,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cadd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43, skipping insertion in model container [2024-11-12 04:17:43,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 04:17:43,543 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-ps-co_file-52.i[919,932] [2024-11-12 04:17:43,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 04:17:43,657 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 04:17:43,671 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-ps-co_file-52.i[919,932] [2024-11-12 04:17:43,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 04:17:43,726 INFO L204 MainTranslator]: Completed translation [2024-11-12 04:17:43,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43 WrapperNode [2024-11-12 04:17:43,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 04:17:43,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 04:17:43,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 04:17:43,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 04:17:43,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,804 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206 [2024-11-12 04:17:43,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 04:17:43,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 04:17:43,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 04:17:43,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 04:17:43,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,855 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]. [2024-11-12 04:17:43,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 04:17:43,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 04:17:43,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 04:17:43,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 04:17:43,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (1/1) ... [2024-11-12 04:17:43,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 04:17:43,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 04:17:43,976 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) [2024-11-12 04:17:43,980 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 [2024-11-12 04:17:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 04:17:44,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 04:17:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 04:17:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 04:17:44,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 04:17:44,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 04:17:44,128 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 04:17:44,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 04:17:44,554 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-12 04:17:44,554 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 04:17:44,570 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 04:17:44,571 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 04:17:44,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:17:44 BoogieIcfgContainer [2024-11-12 04:17:44,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 04:17:44,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 04:17:44,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 04:17:44,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 04:17:44,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:17:43" (1/3) ... [2024-11-12 04:17:44,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18eeaeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:17:44, skipping insertion in model container [2024-11-12 04:17:44,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:43" (2/3) ... [2024-11-12 04:17:44,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18eeaeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:17:44, skipping insertion in model container [2024-11-12 04:17:44,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:17:44" (3/3) ... [2024-11-12 04:17:44,583 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-12 04:17:44,601 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 04:17:44,602 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 04:17:44,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 04:17:44,673 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;@6e7a3c50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 04:17:44,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 04:17:44,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 04:17:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 04:17:44,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:17:44,689 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:17:44,689 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:17:44,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:17:44,695 INFO L85 PathProgramCache]: Analyzing trace with hash -417909114, now seen corresponding path program 1 times [2024-11-12 04:17:44,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:17:44,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190896183] [2024-11-12 04:17:44,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:17:44,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:17:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:17:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:17:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:17:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:17:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:17:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:17:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:17:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:17:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:17:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:17:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:17:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:17:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:17:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:17:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:17:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:17:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:17:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:17:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:17:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:17:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:17:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:17:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,207 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:17:45,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:17:45,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190896183] [2024-11-12 04:17:45,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190896183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:17:45,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:17:45,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 04:17:45,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835695512] [2024-11-12 04:17:45,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:17:45,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 04:17:45,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:17:45,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 04:17:45,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 04:17:45,251 INFO L87 Difference]: Start difference. First operand has 88 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-12 04:17:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:17:45,293 INFO L93 Difference]: Finished difference Result 169 states and 288 transitions. [2024-11-12 04:17:45,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 04:17:45,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 153 [2024-11-12 04:17:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:17:45,306 INFO L225 Difference]: With dead ends: 169 [2024-11-12 04:17:45,307 INFO L226 Difference]: Without dead ends: 84 [2024-11-12 04:17:45,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 04:17:45,313 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 04:17:45,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 04:17:45,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-12 04:17:45,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-12 04:17:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 04:17:45,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 129 transitions. [2024-11-12 04:17:45,361 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 129 transitions. Word has length 153 [2024-11-12 04:17:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:17:45,361 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 129 transitions. [2024-11-12 04:17:45,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-12 04:17:45,362 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2024-11-12 04:17:45,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 04:17:45,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:17:45,366 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:17:45,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 04:17:45,366 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:17:45,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:17:45,367 INFO L85 PathProgramCache]: Analyzing trace with hash -572067138, now seen corresponding path program 1 times [2024-11-12 04:17:45,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:17:45,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715431638] [2024-11-12 04:17:45,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:17:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:17:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:17:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:17:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:17:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:17:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:17:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:17:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:17:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:17:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:17:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:17:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:17:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:17:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:17:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:17:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:17:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:17:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:17:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:17:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:17:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:17:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:17:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:17:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:17:45,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:17:45,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715431638] [2024-11-12 04:17:45,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715431638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:17:45,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:17:45,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 04:17:45,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24527061] [2024-11-12 04:17:45,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:17:45,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 04:17:45,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:17:45,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 04:17:45,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:45,843 INFO L87 Difference]: Start difference. First operand 84 states and 129 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:45,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:17:45,918 INFO L93 Difference]: Finished difference Result 246 states and 381 transitions. [2024-11-12 04:17:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 04:17:45,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 153 [2024-11-12 04:17:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:17:45,924 INFO L225 Difference]: With dead ends: 246 [2024-11-12 04:17:45,924 INFO L226 Difference]: Without dead ends: 165 [2024-11-12 04:17:45,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:45,926 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 82 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 04:17:45,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 265 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 04:17:45,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-12 04:17:45,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 162. [2024-11-12 04:17:45,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 115 states have (on average 1.4173913043478261) internal successors, (163), 115 states have internal predecessors, (163), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-12 04:17:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 251 transitions. [2024-11-12 04:17:45,964 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 251 transitions. Word has length 153 [2024-11-12 04:17:45,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:17:45,968 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 251 transitions. [2024-11-12 04:17:45,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 251 transitions. [2024-11-12 04:17:45,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-12 04:17:45,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:17:45,971 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:17:45,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 04:17:45,974 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:17:45,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:17:45,975 INFO L85 PathProgramCache]: Analyzing trace with hash -347069248, now seen corresponding path program 1 times [2024-11-12 04:17:45,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:17:45,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096581924] [2024-11-12 04:17:45,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:17:45,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:17:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:17:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:17:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:17:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:17:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:17:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:17:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:17:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:17:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:17:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:17:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:17:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:17:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:17:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:17:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:17:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:17:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:17:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:17:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:17:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:17:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:17:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:17:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:17:46,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:17:46,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096581924] [2024-11-12 04:17:46,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096581924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:17:46,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:17:46,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 04:17:46,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40827796] [2024-11-12 04:17:46,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:17:46,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 04:17:46,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:17:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 04:17:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:46,528 INFO L87 Difference]: Start difference. First operand 162 states and 251 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:46,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:17:46,608 INFO L93 Difference]: Finished difference Result 480 states and 747 transitions. [2024-11-12 04:17:46,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 04:17:46,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 154 [2024-11-12 04:17:46,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:17:46,613 INFO L225 Difference]: With dead ends: 480 [2024-11-12 04:17:46,613 INFO L226 Difference]: Without dead ends: 321 [2024-11-12 04:17:46,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:46,619 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 87 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 04:17:46,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 241 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 04:17:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-12 04:17:46,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2024-11-12 04:17:46,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 226 states have (on average 1.415929203539823) internal successors, (320), 226 states have internal predecessors, (320), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-12 04:17:46,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 496 transitions. [2024-11-12 04:17:46,698 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 496 transitions. Word has length 154 [2024-11-12 04:17:46,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:17:46,698 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 496 transitions. [2024-11-12 04:17:46,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:46,699 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 496 transitions. [2024-11-12 04:17:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 04:17:46,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:17:46,704 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:17:46,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 04:17:46,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:17:46,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:17:46,709 INFO L85 PathProgramCache]: Analyzing trace with hash -803671258, now seen corresponding path program 1 times [2024-11-12 04:17:46,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:17:46,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351509354] [2024-11-12 04:17:46,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:17:46,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:17:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:17:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:17:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:17:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:17:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:17:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:17:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:17:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:17:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:17:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:17:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:17:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:17:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:17:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:17:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:17:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:17:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:17:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:17:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:17:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:17:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:17:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:17:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:17:47,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:17:47,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351509354] [2024-11-12 04:17:47,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351509354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:17:47,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:17:47,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 04:17:47,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30794511] [2024-11-12 04:17:47,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:17:47,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 04:17:47,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:17:47,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 04:17:47,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:47,533 INFO L87 Difference]: Start difference. First operand 319 states and 496 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:47,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:17:47,694 INFO L93 Difference]: Finished difference Result 697 states and 1085 transitions. [2024-11-12 04:17:47,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 04:17:47,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-11-12 04:17:47,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:17:47,700 INFO L225 Difference]: With dead ends: 697 [2024-11-12 04:17:47,702 INFO L226 Difference]: Without dead ends: 381 [2024-11-12 04:17:47,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:47,706 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 04:17:47,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 213 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 04:17:47,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-12 04:17:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 371. [2024-11-12 04:17:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 255 states have (on average 1.384313725490196) internal successors, (353), 255 states have internal predecessors, (353), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-12 04:17:47,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 573 transitions. [2024-11-12 04:17:47,782 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 573 transitions. Word has length 155 [2024-11-12 04:17:47,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:17:47,785 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 573 transitions. [2024-11-12 04:17:47,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 573 transitions. [2024-11-12 04:17:47,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-12 04:17:47,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:17:47,790 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:17:47,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 04:17:47,790 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:17:47,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:17:47,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1277742239, now seen corresponding path program 1 times [2024-11-12 04:17:47,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:17:47,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511842547] [2024-11-12 04:17:47,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:17:47,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:17:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:17:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:17:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:17:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:17:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:17:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:17:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:17:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:17:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:17:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:17:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:17:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:17:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:17:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:17:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:17:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:17:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:17:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:17:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:17:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:17:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:17:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:17:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:17:47,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:17:47,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511842547] [2024-11-12 04:17:47,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511842547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:17:47,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:17:47,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 04:17:47,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002134967] [2024-11-12 04:17:47,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:17:47,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 04:17:47,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:17:47,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 04:17:47,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:47,971 INFO L87 Difference]: Start difference. First operand 371 states and 573 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:48,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:17:48,049 INFO L93 Difference]: Finished difference Result 719 states and 1122 transitions. [2024-11-12 04:17:48,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 04:17:48,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-11-12 04:17:48,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:17:48,054 INFO L225 Difference]: With dead ends: 719 [2024-11-12 04:17:48,054 INFO L226 Difference]: Without dead ends: 403 [2024-11-12 04:17:48,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:48,056 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 11 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 04:17:48,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 239 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 04:17:48,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-12 04:17:48,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 379. [2024-11-12 04:17:48,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 263 states have (on average 1.3878326996197718) internal successors, (365), 263 states have internal predecessors, (365), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-12 04:17:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions. [2024-11-12 04:17:48,126 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 156 [2024-11-12 04:17:48,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:17:48,127 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 585 transitions. [2024-11-12 04:17:48,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:48,128 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions. [2024-11-12 04:17:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 04:17:48,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:17:48,131 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:17:48,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 04:17:48,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:17:48,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:17:48,132 INFO L85 PathProgramCache]: Analyzing trace with hash -63484420, now seen corresponding path program 1 times [2024-11-12 04:17:48,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:17:48,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578439767] [2024-11-12 04:17:48,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:17:48,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:17:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:17:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:17:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:17:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:17:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:17:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:17:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:17:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:17:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:17:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:17:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:17:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:17:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:17:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:17:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:17:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:17:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:17:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:17:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:17:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:17:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:17:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:17:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:48,401 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:17:48,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:17:48,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578439767] [2024-11-12 04:17:48,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578439767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:17:48,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:17:48,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 04:17:48,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782226556] [2024-11-12 04:17:48,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:17:48,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 04:17:48,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:17:48,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 04:17:48,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:48,404 INFO L87 Difference]: Start difference. First operand 379 states and 585 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:48,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:17:48,476 INFO L93 Difference]: Finished difference Result 713 states and 1107 transitions. [2024-11-12 04:17:48,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 04:17:48,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-12 04:17:48,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:17:48,481 INFO L225 Difference]: With dead ends: 713 [2024-11-12 04:17:48,482 INFO L226 Difference]: Without dead ends: 389 [2024-11-12 04:17:48,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 04:17:48,483 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 47 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 04:17:48,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 230 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 04:17:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-12 04:17:48,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 380. [2024-11-12 04:17:48,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 264 states have (on average 1.3863636363636365) internal successors, (366), 264 states have internal predecessors, (366), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-12 04:17:48,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 586 transitions. [2024-11-12 04:17:48,521 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 586 transitions. Word has length 157 [2024-11-12 04:17:48,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:17:48,522 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 586 transitions. [2024-11-12 04:17:48,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 586 transitions. [2024-11-12 04:17:48,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 04:17:48,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:17:48,524 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:17:48,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 04:17:48,525 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:17:48,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:17:48,525 INFO L85 PathProgramCache]: Analyzing trace with hash -20546141, now seen corresponding path program 1 times [2024-11-12 04:17:48,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:17:48,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891812247] [2024-11-12 04:17:48,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:17:48,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:17:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:17:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:17:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:17:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:17:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:17:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:17:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:17:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:17:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:17:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:17:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:17:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:17:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:17:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:17:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:17:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:17:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:17:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:17:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:17:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:17:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:17:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:17:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:17:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:17:49,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:17:49,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891812247] [2024-11-12 04:17:49,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891812247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:17:49,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:17:49,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 04:17:49,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459482116] [2024-11-12 04:17:49,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:17:49,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 04:17:49,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:17:49,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 04:17:49,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 04:17:49,567 INFO L87 Difference]: Start difference. First operand 380 states and 586 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:49,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:17:49,888 INFO L93 Difference]: Finished difference Result 723 states and 1119 transitions. [2024-11-12 04:17:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 04:17:49,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-12 04:17:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:17:49,894 INFO L225 Difference]: With dead ends: 723 [2024-11-12 04:17:49,894 INFO L226 Difference]: Without dead ends: 387 [2024-11-12 04:17:49,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-12 04:17:49,896 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 04:17:49,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 367 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 04:17:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-12 04:17:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 380. [2024-11-12 04:17:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 264 states have (on average 1.3825757575757576) internal successors, (365), 264 states have internal predecessors, (365), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-12 04:17:49,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 585 transitions. [2024-11-12 04:17:49,943 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 585 transitions. Word has length 157 [2024-11-12 04:17:49,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:17:49,943 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 585 transitions. [2024-11-12 04:17:49,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:17:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 585 transitions. [2024-11-12 04:17:49,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 04:17:49,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:17:49,962 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:17:49,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 04:17:49,963 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:17:49,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:17:49,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1668397601, now seen corresponding path program 1 times [2024-11-12 04:17:49,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:17:49,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73868661] [2024-11-12 04:17:49,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:17:49,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:17:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:18:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:18:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:18:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:18:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:18:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:18:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:18:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:18:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:18:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:18:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:18:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:18:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:18:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:18:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:18:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:18:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:18:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:18:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:18:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:18:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:18:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:18:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:18:00,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:18:00,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73868661] [2024-11-12 04:18:00,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73868661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:18:00,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:18:00,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-12 04:18:00,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018081471] [2024-11-12 04:18:00,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:18:00,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 04:18:00,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:18:00,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 04:18:00,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-12 04:18:00,567 INFO L87 Difference]: Start difference. First operand 380 states and 585 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:18:06,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:18:06,386 INFO L93 Difference]: Finished difference Result 714 states and 1069 transitions. [2024-11-12 04:18:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-12 04:18:06,387 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-12 04:18:06,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:18:06,395 INFO L225 Difference]: With dead ends: 714 [2024-11-12 04:18:06,395 INFO L226 Difference]: Without dead ends: 712 [2024-11-12 04:18:06,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=567, Invalid=1689, Unknown=0, NotChecked=0, Total=2256 [2024-11-12 04:18:06,397 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 406 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-12 04:18:06,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 735 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-12 04:18:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-12 04:18:06,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 573. [2024-11-12 04:18:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 411 states have (on average 1.391727493917275) internal successors, (572), 411 states have internal predecessors, (572), 154 states have call successors, (154), 7 states have call predecessors, (154), 7 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-12 04:18:06,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 880 transitions. [2024-11-12 04:18:06,460 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 880 transitions. Word has length 157 [2024-11-12 04:18:06,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:18:06,461 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 880 transitions. [2024-11-12 04:18:06,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:18:06,461 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 880 transitions. [2024-11-12 04:18:06,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 04:18:06,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:18:06,463 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:18:06,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 04:18:06,464 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:18:06,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:18:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1926563039, now seen corresponding path program 1 times [2024-11-12 04:18:06,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:18:06,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058029673] [2024-11-12 04:18:06,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:18:06,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:18:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 04:18:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 04:18:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 04:18:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-12 04:18:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 04:18:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 04:18:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 04:18:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 04:18:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 04:18:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-12 04:18:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 04:18:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 04:18:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 04:18:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 04:18:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-12 04:18:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-12 04:18:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 04:18:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-12 04:18:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-12 04:18:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 04:18:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-12 04:18:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-12 04:18:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 04:18:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 04:18:06,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 04:18:06,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058029673] [2024-11-12 04:18:06,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058029673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 04:18:06,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 04:18:06,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 04:18:06,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928606634] [2024-11-12 04:18:06,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 04:18:06,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 04:18:06,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 04:18:06,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 04:18:06,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 04:18:06,693 INFO L87 Difference]: Start difference. First operand 573 states and 880 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:18:06,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 04:18:06,832 INFO L93 Difference]: Finished difference Result 1213 states and 1876 transitions. [2024-11-12 04:18:06,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 04:18:06,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-12 04:18:06,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 04:18:06,838 INFO L225 Difference]: With dead ends: 1213 [2024-11-12 04:18:06,838 INFO L226 Difference]: Without dead ends: 696 [2024-11-12 04:18:06,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 04:18:06,840 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 142 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 04:18:06,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 502 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 04:18:06,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-12 04:18:06,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 496. [2024-11-12 04:18:06,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 357 states have (on average 1.3949579831932772) internal successors, (498), 357 states have internal predecessors, (498), 132 states have call successors, (132), 6 states have call predecessors, (132), 6 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-12 04:18:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 762 transitions. [2024-11-12 04:18:06,892 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 762 transitions. Word has length 157 [2024-11-12 04:18:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 04:18:06,893 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 762 transitions. [2024-11-12 04:18:06,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-12 04:18:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 762 transitions. [2024-11-12 04:18:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 04:18:06,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 04:18:06,896 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 04:18:06,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 04:18:06,896 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 04:18:06,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 04:18:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash 353835297, now seen corresponding path program 1 times [2024-11-12 04:18:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 04:18:06,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607077834] [2024-11-12 04:18:06,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 04:18:06,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 04:18:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat