./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_loopvsstraightlinecode_100-1loop_file-63.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 032103455c965390b2cd90e1021eb4797074287a2ad4fda3336b307fb716d96d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 16:02:29,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 16:02:29,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 16:02:29,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 16:02:29,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 16:02:29,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 16:02:29,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 16:02:29,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 16:02:29,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 16:02:29,122 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 16:02:29,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 16:02:29,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 16:02:29,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 16:02:29,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 16:02:29,124 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 16:02:29,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 16:02:29,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 16:02:29,125 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 16:02:29,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 16:02:29,126 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 16:02:29,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 16:02:29,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 16:02:29,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 16:02:29,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 16:02:29,130 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 16:02:29,131 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 16:02:29,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 16:02:29,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 16:02:29,131 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 16:02:29,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 16:02:29,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 16:02:29,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 16:02:29,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:02:29,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 16:02:29,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 16:02:29,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 16:02:29,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 16:02:29,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 16:02:29,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 16:02:29,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 16:02:29,135 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 16:02:29,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 16:02:29,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 032103455c965390b2cd90e1021eb4797074287a2ad4fda3336b307fb716d96d [2024-11-16 16:02:29,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 16:02:29,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 16:02:29,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 16:02:29,414 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 16:02:29,415 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 16:02:29,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i [2024-11-16 16:02:30,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 16:02:31,039 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 16:02:31,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-63.i [2024-11-16 16:02:31,057 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc811e367/665cbde5be9b49ecb12b14ff4d89e1a4/FLAG3dd6851e4 [2024-11-16 16:02:31,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc811e367/665cbde5be9b49ecb12b14ff4d89e1a4 [2024-11-16 16:02:31,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 16:02:31,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 16:02:31,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 16:02:31,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 16:02:31,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 16:02:31,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31, skipping insertion in model container [2024-11-16 16:02:31,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,123 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 16:02:31,298 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_loopvsstraightlinecode_100-1loop_file-63.i[916,929] [2024-11-16 16:02:31,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:02:31,388 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 16:02:31,426 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_loopvsstraightlinecode_100-1loop_file-63.i[916,929] [2024-11-16 16:02:31,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:02:31,516 INFO L204 MainTranslator]: Completed translation [2024-11-16 16:02:31,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31 WrapperNode [2024-11-16 16:02:31,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 16:02:31,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 16:02:31,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 16:02:31,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 16:02:31,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,587 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 216 [2024-11-16 16:02:31,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 16:02:31,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 16:02:31,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 16:02:31,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 16:02:31,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,635 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]. [2024-11-16 16:02:31,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 16:02:31,684 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 16:02:31,684 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 16:02:31,685 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 16:02:31,685 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (1/1) ... [2024-11-16 16:02:31,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:02:31,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:02:31,715 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) [2024-11-16 16:02:31,718 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 [2024-11-16 16:02:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 16:02:31,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 16:02:31,761 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 16:02:31,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 16:02:31,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 16:02:31,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 16:02:31,865 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 16:02:31,867 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 16:02:32,334 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L186: havoc property_#t~bitwise17#1;havoc property_#t~short18#1;havoc property_#t~short19#1; [2024-11-16 16:02:32,367 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-16 16:02:32,368 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 16:02:32,390 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 16:02:32,391 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 16:02:32,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:02:32 BoogieIcfgContainer [2024-11-16 16:02:32,391 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 16:02:32,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 16:02:32,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 16:02:32,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 16:02:32,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:02:31" (1/3) ... [2024-11-16 16:02:32,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9dcabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:02:32, skipping insertion in model container [2024-11-16 16:02:32,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:31" (2/3) ... [2024-11-16 16:02:32,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9dcabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:02:32, skipping insertion in model container [2024-11-16 16:02:32,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:02:32" (3/3) ... [2024-11-16 16:02:32,400 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-63.i [2024-11-16 16:02:32,417 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 16:02:32,418 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 16:02:32,481 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 16:02:32,490 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;@348a29d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 16:02:32,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 16:02:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 69 states have (on average 1.463768115942029) internal successors, (101), 70 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 16:02:32,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:02:32,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:02:32,511 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:02:32,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:02:32,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:02:32,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1828462599, now seen corresponding path program 1 times [2024-11-16 16:02:32,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:02:32,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697224515] [2024-11-16 16:02:32,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:02:32,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:02:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:02:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:02:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:02:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:02:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:02:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:02:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:02:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:02:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:02:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:02:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:02:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:02:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:02:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:02:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:02:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:02:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:02:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:02:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:32,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:02:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:02:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:02:33,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:02:33,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697224515] [2024-11-16 16:02:33,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697224515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:02:33,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:02:33,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 16:02:33,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911180976] [2024-11-16 16:02:33,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:02:33,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 16:02:33,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:02:33,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 16:02:33,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:02:33,053 INFO L87 Difference]: Start difference. First operand has 92 states, 69 states have (on average 1.463768115942029) internal successors, (101), 70 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 16:02:33,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:02:33,092 INFO L93 Difference]: Finished difference Result 178 states and 296 transitions. [2024-11-16 16:02:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 16:02:33,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2024-11-16 16:02:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:02:33,104 INFO L225 Difference]: With dead ends: 178 [2024-11-16 16:02:33,105 INFO L226 Difference]: Without dead ends: 85 [2024-11-16 16:02:33,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:02:33,115 INFO L432 NwaCegarLoop]: 131 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, 131 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 [2024-11-16 16:02:33,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:02:33,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-16 16:02:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-16 16:02:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 16:02:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 127 transitions. [2024-11-16 16:02:33,165 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 127 transitions. Word has length 145 [2024-11-16 16:02:33,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:02:33,166 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 127 transitions. [2024-11-16 16:02:33,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 16:02:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 127 transitions. [2024-11-16 16:02:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:02:33,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:02:33,173 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:02:33,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 16:02:33,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:02:33,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:02:33,175 INFO L85 PathProgramCache]: Analyzing trace with hash 29110231, now seen corresponding path program 1 times [2024-11-16 16:02:33,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:02:33,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733850637] [2024-11-16 16:02:33,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:02:33,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:02:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:02:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:02:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:02:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:02:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:02:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:02:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:02:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:02:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:02:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:02:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:02:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:02:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:02:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:02:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:02:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:02:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:02:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:02:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:02:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:02:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:02:33,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:02:33,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733850637] [2024-11-16 16:02:33,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733850637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:02:33,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:02:33,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:02:33,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408464582] [2024-11-16 16:02:33,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:02:33,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:02:33,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:02:34,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:02:34,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:02:34,001 INFO L87 Difference]: Start difference. First operand 85 states and 127 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:34,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:02:34,213 INFO L93 Difference]: Finished difference Result 251 states and 377 transitions. [2024-11-16 16:02:34,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:02:34,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 16:02:34,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:02:34,217 INFO L225 Difference]: With dead ends: 251 [2024-11-16 16:02:34,217 INFO L226 Difference]: Without dead ends: 169 [2024-11-16 16:02:34,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:02:34,219 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 95 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:02:34,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 356 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:02:34,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-16 16:02:34,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 132. [2024-11-16 16:02:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-16 16:02:34,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 199 transitions. [2024-11-16 16:02:34,256 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 199 transitions. Word has length 145 [2024-11-16 16:02:34,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:02:34,257 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 199 transitions. [2024-11-16 16:02:34,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:34,258 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 199 transitions. [2024-11-16 16:02:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:02:34,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:02:34,260 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:02:34,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 16:02:34,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:02:34,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:02:34,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2048099112, now seen corresponding path program 1 times [2024-11-16 16:02:34,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:02:34,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302696247] [2024-11-16 16:02:34,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:02:34,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:02:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:02:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:02:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:02:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:02:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:02:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:02:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:02:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:02:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:02:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:02:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:02:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:02:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:02:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:02:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:02:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:02:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:02:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:02:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:02:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:02:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:02:34,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:02:34,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302696247] [2024-11-16 16:02:34,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302696247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:02:34,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:02:34,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:02:34,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011159510] [2024-11-16 16:02:34,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:02:34,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:02:34,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:02:34,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:02:34,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:02:34,779 INFO L87 Difference]: Start difference. First operand 132 states and 199 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:02:34,971 INFO L93 Difference]: Finished difference Result 319 states and 473 transitions. [2024-11-16 16:02:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:02:34,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 16:02:34,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:02:34,974 INFO L225 Difference]: With dead ends: 319 [2024-11-16 16:02:34,974 INFO L226 Difference]: Without dead ends: 237 [2024-11-16 16:02:34,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:02:34,980 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 194 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:02:34,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 296 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:02:34,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-16 16:02:35,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 186. [2024-11-16 16:02:35,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 134 states have (on average 1.3582089552238805) internal successors, (182), 135 states have internal predecessors, (182), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 16:02:35,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 278 transitions. [2024-11-16 16:02:35,023 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 278 transitions. Word has length 145 [2024-11-16 16:02:35,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:02:35,024 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 278 transitions. [2024-11-16 16:02:35,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 278 transitions. [2024-11-16 16:02:35,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:02:35,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:02:35,028 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:02:35,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 16:02:35,028 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:02:35,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:02:35,029 INFO L85 PathProgramCache]: Analyzing trace with hash 360451130, now seen corresponding path program 1 times [2024-11-16 16:02:35,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:02:35,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199438237] [2024-11-16 16:02:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:02:35,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:02:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:02:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:02:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:02:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:02:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:02:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:02:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:02:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:02:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:02:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:02:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:02:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:02:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:02:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:02:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:02:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:02:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:02:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:02:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:02:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:02:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:02:41,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:02:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199438237] [2024-11-16 16:02:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199438237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:02:41,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:02:41,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 16:02:41,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148249664] [2024-11-16 16:02:41,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:02:41,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 16:02:41,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:02:41,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 16:02:41,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-16 16:02:41,314 INFO L87 Difference]: Start difference. First operand 186 states and 278 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:43,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:02:43,057 INFO L93 Difference]: Finished difference Result 680 states and 990 transitions. [2024-11-16 16:02:43,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 16:02:43,058 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 16:02:43,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:02:43,063 INFO L225 Difference]: With dead ends: 680 [2024-11-16 16:02:43,063 INFO L226 Difference]: Without dead ends: 545 [2024-11-16 16:02:43,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-16 16:02:43,065 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 619 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 16:02:43,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 535 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 16:02:43,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-16 16:02:43,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 222. [2024-11-16 16:02:43,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 170 states have (on average 1.388235294117647) internal successors, (236), 171 states have internal predecessors, (236), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 16:02:43,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 332 transitions. [2024-11-16 16:02:43,092 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 332 transitions. Word has length 145 [2024-11-16 16:02:43,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:02:43,093 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 332 transitions. [2024-11-16 16:02:43,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:43,093 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 332 transitions. [2024-11-16 16:02:43,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:02:43,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:02:43,095 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:02:43,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 16:02:43,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:02:43,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:02:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1447003333, now seen corresponding path program 1 times [2024-11-16 16:02:43,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:02:43,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224219057] [2024-11-16 16:02:43,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:02:43,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:02:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:02:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:02:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:02:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:02:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:02:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:02:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:02:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:02:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:02:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:02:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:02:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:02:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:02:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:02:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:02:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:02:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:02:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:02:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:02:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:02:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:02:51,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:02:51,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224219057] [2024-11-16 16:02:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224219057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:02:51,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:02:51,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 16:02:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117028802] [2024-11-16 16:02:51,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:02:51,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 16:02:51,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:02:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 16:02:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-16 16:02:51,685 INFO L87 Difference]: Start difference. First operand 222 states and 332 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:53,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:02:53,715 INFO L93 Difference]: Finished difference Result 924 states and 1347 transitions. [2024-11-16 16:02:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 16:02:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 16:02:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:02:53,720 INFO L225 Difference]: With dead ends: 924 [2024-11-16 16:02:53,721 INFO L226 Difference]: Without dead ends: 753 [2024-11-16 16:02:53,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2024-11-16 16:02:53,723 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 707 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:02:53,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 891 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 16:02:53,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-16 16:02:53,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 289. [2024-11-16 16:02:53,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 237 states have (on average 1.4261603375527425) internal successors, (338), 238 states have internal predecessors, (338), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 16:02:53,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 434 transitions. [2024-11-16 16:02:53,757 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 434 transitions. Word has length 145 [2024-11-16 16:02:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:02:53,758 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 434 transitions. [2024-11-16 16:02:53,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:53,759 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 434 transitions. [2024-11-16 16:02:53,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:02:53,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:02:53,761 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:02:53,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 16:02:53,762 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:02:53,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:02:53,763 INFO L85 PathProgramCache]: Analyzing trace with hash 208811895, now seen corresponding path program 1 times [2024-11-16 16:02:53,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:02:53,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551212337] [2024-11-16 16:02:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:02:53,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:02:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:02:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:02:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:02:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:02:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:02:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:02:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:02:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:02:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:02:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:02:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:02:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:02:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:02:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:02:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:02:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:02:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:02:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:02:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:02:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:02:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:54,105 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:02:54,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:02:54,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551212337] [2024-11-16 16:02:54,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551212337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:02:54,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:02:54,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 16:02:54,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700381684] [2024-11-16 16:02:54,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:02:54,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 16:02:54,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:02:54,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 16:02:54,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:02:54,109 INFO L87 Difference]: Start difference. First operand 289 states and 434 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:54,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:02:54,299 INFO L93 Difference]: Finished difference Result 713 states and 1064 transitions. [2024-11-16 16:02:54,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 16:02:54,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 16:02:54,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:02:54,304 INFO L225 Difference]: With dead ends: 713 [2024-11-16 16:02:54,304 INFO L226 Difference]: Without dead ends: 494 [2024-11-16 16:02:54,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:02:54,307 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 168 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:02:54,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 459 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:02:54,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-16 16:02:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 312. [2024-11-16 16:02:54,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 259 states have (on average 1.4247104247104247) internal successors, (369), 260 states have internal predecessors, (369), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 16:02:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 465 transitions. [2024-11-16 16:02:54,340 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 465 transitions. Word has length 145 [2024-11-16 16:02:54,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:02:54,343 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 465 transitions. [2024-11-16 16:02:54,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:02:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 465 transitions. [2024-11-16 16:02:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:02:54,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:02:54,345 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:02:54,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 16:02:54,345 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:02:54,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:02:54,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1598642568, now seen corresponding path program 1 times [2024-11-16 16:02:54,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:02:54,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070130300] [2024-11-16 16:02:54,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:02:54,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:02:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:02:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:02:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:02:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:02:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:02:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:02:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:02:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:02:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:02:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:02:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:02:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:02:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:02:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:02:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:02:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:02:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:02:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:02:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:02:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:02:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:02:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:02:59,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:02:59,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070130300] [2024-11-16 16:02:59,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070130300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:02:59,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:02:59,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 16:02:59,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148947781] [2024-11-16 16:02:59,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:02:59,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 16:02:59,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:02:59,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 16:02:59,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-16 16:02:59,256 INFO L87 Difference]: Start difference. First operand 312 states and 465 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:00,857 INFO L93 Difference]: Finished difference Result 853 states and 1254 transitions. [2024-11-16 16:03:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 16:03:00,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 16:03:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:00,860 INFO L225 Difference]: With dead ends: 853 [2024-11-16 16:03:00,860 INFO L226 Difference]: Without dead ends: 628 [2024-11-16 16:03:00,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2024-11-16 16:03:00,864 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 599 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:00,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 675 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 16:03:00,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-16 16:03:00,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 327. [2024-11-16 16:03:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 274 states have (on average 1.4233576642335766) internal successors, (390), 275 states have internal predecessors, (390), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 16:03:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 486 transitions. [2024-11-16 16:03:00,892 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 486 transitions. Word has length 145 [2024-11-16 16:03:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:00,892 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 486 transitions. [2024-11-16 16:03:00,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 486 transitions. [2024-11-16 16:03:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:03:00,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:00,894 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:00,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 16:03:00,894 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:00,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:00,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1677605159, now seen corresponding path program 1 times [2024-11-16 16:03:00,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:00,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197304814] [2024-11-16 16:03:00,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:00,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,113 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:01,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:01,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197304814] [2024-11-16 16:03:01,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197304814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:01,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:01,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:03:01,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212626720] [2024-11-16 16:03:01,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:01,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:03:01,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:01,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:03:01,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:03:01,115 INFO L87 Difference]: Start difference. First operand 327 states and 486 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:01,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:01,237 INFO L93 Difference]: Finished difference Result 664 states and 977 transitions. [2024-11-16 16:03:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:03:01,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 16:03:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:01,241 INFO L225 Difference]: With dead ends: 664 [2024-11-16 16:03:01,241 INFO L226 Difference]: Without dead ends: 411 [2024-11-16 16:03:01,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:03:01,243 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 138 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:01,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 437 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:03:01,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-16 16:03:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 309. [2024-11-16 16:03:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 256 states have (on average 1.41015625) internal successors, (361), 257 states have internal predecessors, (361), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 16:03:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 457 transitions. [2024-11-16 16:03:01,271 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 457 transitions. Word has length 145 [2024-11-16 16:03:01,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:01,271 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 457 transitions. [2024-11-16 16:03:01,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 457 transitions. [2024-11-16 16:03:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 16:03:01,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:01,273 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:01,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 16:03:01,274 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:01,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:01,274 INFO L85 PathProgramCache]: Analyzing trace with hash -815612489, now seen corresponding path program 1 times [2024-11-16 16:03:01,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:01,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778237744] [2024-11-16 16:03:01,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:01,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:01,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:01,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778237744] [2024-11-16 16:03:01,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778237744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:01,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:01,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 16:03:01,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551723916] [2024-11-16 16:03:01,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:01,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 16:03:01,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:01,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 16:03:01,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 16:03:01,402 INFO L87 Difference]: Start difference. First operand 309 states and 457 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:01,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:01,425 INFO L93 Difference]: Finished difference Result 548 states and 815 transitions. [2024-11-16 16:03:01,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 16:03:01,425 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-16 16:03:01,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:01,427 INFO L225 Difference]: With dead ends: 548 [2024-11-16 16:03:01,427 INFO L226 Difference]: Without dead ends: 311 [2024-11-16 16:03:01,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 16:03:01,430 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:01,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 246 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:03:01,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-16 16:03:01,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-16 16:03:01,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 258 states have (on average 1.4069767441860466) internal successors, (363), 259 states have internal predecessors, (363), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 16:03:01,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 459 transitions. [2024-11-16 16:03:01,453 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 459 transitions. Word has length 145 [2024-11-16 16:03:01,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:01,454 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 459 transitions. [2024-11-16 16:03:01,455 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:01,455 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 459 transitions. [2024-11-16 16:03:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:01,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:01,458 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:01,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 16:03:01,458 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:01,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:01,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1418248224, now seen corresponding path program 1 times [2024-11-16 16:03:01,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:01,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693663400] [2024-11-16 16:03:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:01,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:07,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:07,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:07,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:08,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:08,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693663400] [2024-11-16 16:03:08,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693663400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:08,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:08,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 16:03:08,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754798831] [2024-11-16 16:03:08,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:08,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 16:03:08,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:08,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 16:03:08,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-16 16:03:08,080 INFO L87 Difference]: Start difference. First operand 311 states and 459 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:10,154 INFO L93 Difference]: Finished difference Result 1046 states and 1514 transitions. [2024-11-16 16:03:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 16:03:10,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:10,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:10,158 INFO L225 Difference]: With dead ends: 1046 [2024-11-16 16:03:10,159 INFO L226 Difference]: Without dead ends: 811 [2024-11-16 16:03:10,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2024-11-16 16:03:10,160 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 741 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:10,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 826 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 16:03:10,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-16 16:03:10,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 319. [2024-11-16 16:03:10,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 266 states have (on average 1.413533834586466) internal successors, (376), 267 states have internal predecessors, (376), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 16:03:10,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 472 transitions. [2024-11-16 16:03:10,188 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 472 transitions. Word has length 146 [2024-11-16 16:03:10,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:10,189 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 472 transitions. [2024-11-16 16:03:10,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:10,189 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 472 transitions. [2024-11-16 16:03:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:10,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:10,191 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:10,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 16:03:10,192 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:10,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:10,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1155994627, now seen corresponding path program 1 times [2024-11-16 16:03:10,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:10,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605554177] [2024-11-16 16:03:10,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:10,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:11,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:11,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605554177] [2024-11-16 16:03:11,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605554177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:11,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:11,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 16:03:11,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523189204] [2024-11-16 16:03:11,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:11,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 16:03:11,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:11,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 16:03:11,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-16 16:03:11,450 INFO L87 Difference]: Start difference. First operand 319 states and 472 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:12,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:12,856 INFO L93 Difference]: Finished difference Result 1072 states and 1556 transitions. [2024-11-16 16:03:12,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 16:03:12,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:12,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:12,861 INFO L225 Difference]: With dead ends: 1072 [2024-11-16 16:03:12,862 INFO L226 Difference]: Without dead ends: 828 [2024-11-16 16:03:12,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2024-11-16 16:03:12,863 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 688 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:12,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 856 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 16:03:12,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-16 16:03:12,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 637. [2024-11-16 16:03:12,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 545 states have (on average 1.4275229357798165) internal successors, (778), 549 states have internal predecessors, (778), 82 states have call successors, (82), 9 states have call predecessors, (82), 9 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-16 16:03:12,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 942 transitions. [2024-11-16 16:03:12,913 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 942 transitions. Word has length 146 [2024-11-16 16:03:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:12,914 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 942 transitions. [2024-11-16 16:03:12,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:12,914 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 942 transitions. [2024-11-16 16:03:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:12,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:12,917 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:12,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 16:03:12,917 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:12,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:12,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1449397634, now seen corresponding path program 1 times [2024-11-16 16:03:12,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952729730] [2024-11-16 16:03:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:12,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:13,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:13,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952729730] [2024-11-16 16:03:13,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952729730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:13,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:13,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 16:03:13,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869637164] [2024-11-16 16:03:13,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:13,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 16:03:13,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:13,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 16:03:13,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 16:03:13,284 INFO L87 Difference]: Start difference. First operand 637 states and 942 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:13,708 INFO L93 Difference]: Finished difference Result 1819 states and 2690 transitions. [2024-11-16 16:03:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 16:03:13,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:13,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:13,715 INFO L225 Difference]: With dead ends: 1819 [2024-11-16 16:03:13,715 INFO L226 Difference]: Without dead ends: 1263 [2024-11-16 16:03:13,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 16:03:13,718 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 322 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:13,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 493 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 16:03:13,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2024-11-16 16:03:13,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1126. [2024-11-16 16:03:13,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 971 states have (on average 1.4335736354273945) internal successors, (1392), 978 states have internal predecessors, (1392), 140 states have call successors, (140), 14 states have call predecessors, (140), 14 states have return successors, (140), 133 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-16 16:03:13,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1672 transitions. [2024-11-16 16:03:13,804 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1672 transitions. Word has length 146 [2024-11-16 16:03:13,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:13,804 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1672 transitions. [2024-11-16 16:03:13,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1672 transitions. [2024-11-16 16:03:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:13,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:13,807 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:13,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 16:03:13,808 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:13,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:13,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1922805305, now seen corresponding path program 1 times [2024-11-16 16:03:13,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:13,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965170778] [2024-11-16 16:03:13,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:13,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:13,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:13,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965170778] [2024-11-16 16:03:13,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965170778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:13,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:13,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:03:13,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617426595] [2024-11-16 16:03:13,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:13,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:03:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:13,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:03:13,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:03:13,954 INFO L87 Difference]: Start difference. First operand 1126 states and 1672 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:14,109 INFO L93 Difference]: Finished difference Result 2764 states and 4076 transitions. [2024-11-16 16:03:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:03:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:14,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:14,118 INFO L225 Difference]: With dead ends: 2764 [2024-11-16 16:03:14,118 INFO L226 Difference]: Without dead ends: 1719 [2024-11-16 16:03:14,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:03:14,122 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 118 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:14,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 231 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:03:14,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2024-11-16 16:03:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1708. [2024-11-16 16:03:14,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1484 states have (on average 1.408355795148248) internal successors, (2090), 1502 states have internal predecessors, (2090), 196 states have call successors, (196), 27 states have call predecessors, (196), 27 states have return successors, (196), 178 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-16 16:03:14,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2482 transitions. [2024-11-16 16:03:14,244 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2482 transitions. Word has length 146 [2024-11-16 16:03:14,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:14,245 INFO L471 AbstractCegarLoop]: Abstraction has 1708 states and 2482 transitions. [2024-11-16 16:03:14,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:14,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2482 transitions. [2024-11-16 16:03:14,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:14,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:14,248 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:14,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 16:03:14,248 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:14,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 2141900316, now seen corresponding path program 1 times [2024-11-16 16:03:14,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:14,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922515010] [2024-11-16 16:03:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:14,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:14,486 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:14,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:14,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922515010] [2024-11-16 16:03:14,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922515010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:14,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:14,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 16:03:14,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684043355] [2024-11-16 16:03:14,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:14,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 16:03:14,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:14,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 16:03:14,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 16:03:14,488 INFO L87 Difference]: Start difference. First operand 1708 states and 2482 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:15,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:15,227 INFO L93 Difference]: Finished difference Result 5628 states and 7851 transitions. [2024-11-16 16:03:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 16:03:15,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:15,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:15,247 INFO L225 Difference]: With dead ends: 5628 [2024-11-16 16:03:15,247 INFO L226 Difference]: Without dead ends: 4779 [2024-11-16 16:03:15,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 16:03:15,252 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 229 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:15,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 669 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 16:03:15,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2024-11-16 16:03:15,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 3619. [2024-11-16 16:03:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3231 states have (on average 1.3890436397400185) internal successors, (4488), 3293 states have internal predecessors, (4488), 316 states have call successors, (316), 71 states have call predecessors, (316), 71 states have return successors, (316), 254 states have call predecessors, (316), 316 states have call successors, (316) [2024-11-16 16:03:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 5120 transitions. [2024-11-16 16:03:15,584 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 5120 transitions. Word has length 146 [2024-11-16 16:03:15,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:15,586 INFO L471 AbstractCegarLoop]: Abstraction has 3619 states and 5120 transitions. [2024-11-16 16:03:15,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5120 transitions. [2024-11-16 16:03:15,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:15,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:15,589 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:15,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 16:03:15,589 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:15,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1564818852, now seen corresponding path program 1 times [2024-11-16 16:03:15,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:15,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035937024] [2024-11-16 16:03:15,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:15,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:22,262 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:22,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:22,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035937024] [2024-11-16 16:03:22,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035937024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:22,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:22,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 16:03:22,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343636668] [2024-11-16 16:03:22,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:22,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 16:03:22,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 16:03:22,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-16 16:03:22,264 INFO L87 Difference]: Start difference. First operand 3619 states and 5120 transitions. Second operand has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 16:03:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:24,213 INFO L93 Difference]: Finished difference Result 6103 states and 8613 transitions. [2024-11-16 16:03:24,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 16:03:24,214 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 146 [2024-11-16 16:03:24,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:24,233 INFO L225 Difference]: With dead ends: 6103 [2024-11-16 16:03:24,233 INFO L226 Difference]: Without dead ends: 4267 [2024-11-16 16:03:24,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2024-11-16 16:03:24,240 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 651 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:24,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1038 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 16:03:24,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2024-11-16 16:03:24,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 3620. [2024-11-16 16:03:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3232 states have (on average 1.3892326732673268) internal successors, (4490), 3294 states have internal predecessors, (4490), 316 states have call successors, (316), 71 states have call predecessors, (316), 71 states have return successors, (316), 254 states have call predecessors, (316), 316 states have call successors, (316) [2024-11-16 16:03:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5122 transitions. [2024-11-16 16:03:24,548 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5122 transitions. Word has length 146 [2024-11-16 16:03:24,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:24,549 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5122 transitions. [2024-11-16 16:03:24,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 16:03:24,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5122 transitions. [2024-11-16 16:03:24,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:24,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:24,553 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:24,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 16:03:24,553 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:24,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:24,554 INFO L85 PathProgramCache]: Analyzing trace with hash -81286878, now seen corresponding path program 1 times [2024-11-16 16:03:24,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:24,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813474649] [2024-11-16 16:03:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:24,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:28,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:29,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:29,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:29,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:29,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813474649] [2024-11-16 16:03:29,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813474649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:29,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:29,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 16:03:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721087369] [2024-11-16 16:03:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:29,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 16:03:29,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:29,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 16:03:29,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-16 16:03:29,013 INFO L87 Difference]: Start difference. First operand 3620 states and 5122 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:30,301 INFO L93 Difference]: Finished difference Result 6622 states and 9336 transitions. [2024-11-16 16:03:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 16:03:30,301 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:30,323 INFO L225 Difference]: With dead ends: 6622 [2024-11-16 16:03:30,324 INFO L226 Difference]: Without dead ends: 4807 [2024-11-16 16:03:30,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2024-11-16 16:03:30,330 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 347 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:30,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 656 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 16:03:30,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2024-11-16 16:03:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 3641. [2024-11-16 16:03:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3641 states, 3253 states have (on average 1.3891792191822934) internal successors, (4519), 3315 states have internal predecessors, (4519), 316 states have call successors, (316), 71 states have call predecessors, (316), 71 states have return successors, (316), 254 states have call predecessors, (316), 316 states have call successors, (316) [2024-11-16 16:03:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3641 states to 3641 states and 5151 transitions. [2024-11-16 16:03:30,647 INFO L78 Accepts]: Start accepts. Automaton has 3641 states and 5151 transitions. Word has length 146 [2024-11-16 16:03:30,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:30,648 INFO L471 AbstractCegarLoop]: Abstraction has 3641 states and 5151 transitions. [2024-11-16 16:03:30,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:30,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3641 states and 5151 transitions. [2024-11-16 16:03:30,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:30,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:30,651 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:30,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 16:03:30,652 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:30,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash -589450119, now seen corresponding path program 1 times [2024-11-16 16:03:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:30,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819937545] [2024-11-16 16:03:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:30,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:31,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:31,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819937545] [2024-11-16 16:03:31,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819937545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:31,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:31,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 16:03:31,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450114468] [2024-11-16 16:03:31,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:31,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 16:03:31,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:31,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 16:03:31,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 16:03:31,653 INFO L87 Difference]: Start difference. First operand 3641 states and 5151 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:33,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:33,223 INFO L93 Difference]: Finished difference Result 9105 states and 12778 transitions. [2024-11-16 16:03:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 16:03:33,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:33,257 INFO L225 Difference]: With dead ends: 9105 [2024-11-16 16:03:33,258 INFO L226 Difference]: Without dead ends: 5544 [2024-11-16 16:03:33,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2024-11-16 16:03:33,268 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 445 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:33,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1000 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 16:03:33,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2024-11-16 16:03:33,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 4316. [2024-11-16 16:03:33,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4316 states, 3927 states have (on average 1.4064171122994653) internal successors, (5523), 3989 states have internal predecessors, (5523), 316 states have call successors, (316), 72 states have call predecessors, (316), 72 states have return successors, (316), 254 states have call predecessors, (316), 316 states have call successors, (316) [2024-11-16 16:03:33,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4316 states to 4316 states and 6155 transitions. [2024-11-16 16:03:33,647 INFO L78 Accepts]: Start accepts. Automaton has 4316 states and 6155 transitions. Word has length 146 [2024-11-16 16:03:33,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:33,648 INFO L471 AbstractCegarLoop]: Abstraction has 4316 states and 6155 transitions. [2024-11-16 16:03:33,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:33,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4316 states and 6155 transitions. [2024-11-16 16:03:33,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:33,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:33,652 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:33,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 16:03:33,652 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:33,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:33,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1819100123, now seen corresponding path program 1 times [2024-11-16 16:03:33,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:33,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410756544] [2024-11-16 16:03:33,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:33,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:33,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:33,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410756544] [2024-11-16 16:03:33,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410756544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:33,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:33,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:03:33,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533630624] [2024-11-16 16:03:33,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:33,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:03:33,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:33,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:03:33,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:03:33,890 INFO L87 Difference]: Start difference. First operand 4316 states and 6155 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:34,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:34,530 INFO L93 Difference]: Finished difference Result 10008 states and 14074 transitions. [2024-11-16 16:03:34,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:03:34,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:34,557 INFO L225 Difference]: With dead ends: 10008 [2024-11-16 16:03:34,557 INFO L226 Difference]: Without dead ends: 6058 [2024-11-16 16:03:34,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:03:34,571 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 188 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:34,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 345 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:03:34,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2024-11-16 16:03:34,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 3811. [2024-11-16 16:03:35,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3811 states, 3422 states have (on average 1.3822326125073057) internal successors, (4730), 3484 states have internal predecessors, (4730), 316 states have call successors, (316), 72 states have call predecessors, (316), 72 states have return successors, (316), 254 states have call predecessors, (316), 316 states have call successors, (316) [2024-11-16 16:03:35,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 5362 transitions. [2024-11-16 16:03:35,018 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 5362 transitions. Word has length 146 [2024-11-16 16:03:35,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:35,018 INFO L471 AbstractCegarLoop]: Abstraction has 3811 states and 5362 transitions. [2024-11-16 16:03:35,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:35,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 5362 transitions. [2024-11-16 16:03:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:35,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:35,025 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:35,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 16:03:35,025 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:35,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:35,029 INFO L85 PathProgramCache]: Analyzing trace with hash -820051945, now seen corresponding path program 1 times [2024-11-16 16:03:35,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:35,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148239151] [2024-11-16 16:03:35,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:35,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:03:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:03:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:03:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:03:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:03:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:03:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:03:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:03:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:03:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:03:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:03:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:03:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:03:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:03:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:03:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 16:03:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 16:03:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 16:03:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 16:03:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 16:03:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 16:03:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:03:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 16:03:35,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:03:35,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148239151] [2024-11-16 16:03:35,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148239151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:03:35,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:03:35,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 16:03:35,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058159882] [2024-11-16 16:03:35,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:03:35,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 16:03:35,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:03:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 16:03:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 16:03:35,289 INFO L87 Difference]: Start difference. First operand 3811 states and 5362 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:03:36,093 INFO L93 Difference]: Finished difference Result 10476 states and 14702 transitions. [2024-11-16 16:03:36,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 16:03:36,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-16 16:03:36,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:03:36,114 INFO L225 Difference]: With dead ends: 10476 [2024-11-16 16:03:36,115 INFO L226 Difference]: Without dead ends: 7153 [2024-11-16 16:03:36,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-16 16:03:36,124 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 348 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:03:36,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 610 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:03:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7153 states. [2024-11-16 16:03:36,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7153 to 4489. [2024-11-16 16:03:36,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4489 states, 3998 states have (on average 1.3779389694847424) internal successors, (5509), 4074 states have internal predecessors, (5509), 400 states have call successors, (400), 90 states have call predecessors, (400), 90 states have return successors, (400), 324 states have call predecessors, (400), 400 states have call successors, (400) [2024-11-16 16:03:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 6309 transitions. [2024-11-16 16:03:36,593 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 6309 transitions. Word has length 146 [2024-11-16 16:03:36,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:03:36,593 INFO L471 AbstractCegarLoop]: Abstraction has 4489 states and 6309 transitions. [2024-11-16 16:03:36,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 16:03:36,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 6309 transitions. [2024-11-16 16:03:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 16:03:36,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:03:36,597 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:03:36,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 16:03:36,597 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:03:36,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:03:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1588498297, now seen corresponding path program 1 times [2024-11-16 16:03:36,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:03:36,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357462410] [2024-11-16 16:03:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:03:36,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms