./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-5.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_25-while_file-5.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 ea5a8604b55ac7b733e3a58d5b1561195fe1a5472f19acdcc847503296ba06a2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 16:33:10,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 16:33:10,500 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 16:33:10,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 16:33:10,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 16:33:10,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 16:33:10,529 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 16:33:10,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 16:33:10,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 16:33:10,533 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 16:33:10,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 16:33:10,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 16:33:10,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 16:33:10,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 16:33:10,534 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 16:33:10,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 16:33:10,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 16:33:10,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 16:33:10,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 16:33:10,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 16:33:10,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 16:33:10,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 16:33:10,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 16:33:10,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 16:33:10,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 16:33:10,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 16:33:10,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 16:33:10,539 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 16:33:10,539 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 16:33:10,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 16:33:10,540 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 16:33:10,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 16:33:10,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:33:10,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 16:33:10,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 16:33:10,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 16:33:10,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 16:33:10,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 16:33:10,541 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 16:33:10,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 16:33:10,541 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 16:33:10,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 16:33:10,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea5a8604b55ac7b733e3a58d5b1561195fe1a5472f19acdcc847503296ba06a2 [2024-11-16 16:33:10,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 16:33:10,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 16:33:10,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 16:33:10,750 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 16:33:10,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 16:33:10,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-5.i [2024-11-16 16:33:11,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 16:33:12,121 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 16:33:12,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-5.i [2024-11-16 16:33:12,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea649258e/3c2acb1e2a9d43cc8f7b92fdbffd03a7/FLAG63606ada7 [2024-11-16 16:33:12,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea649258e/3c2acb1e2a9d43cc8f7b92fdbffd03a7 [2024-11-16 16:33:12,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 16:33:12,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 16:33:12,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 16:33:12,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 16:33:12,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 16:33:12,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0fa577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12, skipping insertion in model container [2024-11-16 16:33:12,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,170 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 16:33:12,284 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_25-while_file-5.i[914,927] [2024-11-16 16:33:12,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:33:12,324 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 16:33:12,333 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_25-while_file-5.i[914,927] [2024-11-16 16:33:12,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:33:12,360 INFO L204 MainTranslator]: Completed translation [2024-11-16 16:33:12,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12 WrapperNode [2024-11-16 16:33:12,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 16:33:12,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 16:33:12,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 16:33:12,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 16:33:12,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,412 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-16 16:33:12,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 16:33:12,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 16:33:12,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 16:33:12,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 16:33:12,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,442 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 16:33:12,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 16:33:12,459 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 16:33:12,459 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 16:33:12,460 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 16:33:12,460 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (1/1) ... [2024-11-16 16:33:12,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:33:12,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:33:12,493 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 16:33:12,514 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 16:33:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 16:33:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 16:33:12,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 16:33:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 16:33:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 16:33:12,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 16:33:12,631 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 16:33:12,633 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 16:33:12,853 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-16 16:33:12,854 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 16:33:12,869 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 16:33:12,869 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 16:33:12,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:33:12 BoogieIcfgContainer [2024-11-16 16:33:12,870 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 16:33:12,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 16:33:12,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 16:33:12,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 16:33:12,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:33:12" (1/3) ... [2024-11-16 16:33:12,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb4cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:33:12, skipping insertion in model container [2024-11-16 16:33:12,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:33:12" (2/3) ... [2024-11-16 16:33:12,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb4cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:33:12, skipping insertion in model container [2024-11-16 16:33:12,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:33:12" (3/3) ... [2024-11-16 16:33:12,879 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-5.i [2024-11-16 16:33:12,892 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 16:33:12,892 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 16:33:12,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 16:33:12,948 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;@10559f80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 16:33:12,948 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 16:33:12,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 16:33:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:33:12,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:12,965 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:12,966 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:12,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:12,970 INFO L85 PathProgramCache]: Analyzing trace with hash 885180676, now seen corresponding path program 1 times [2024-11-16 16:33:12,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:12,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475996734] [2024-11-16 16:33:12,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:12,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:13,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:13,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475996734] [2024-11-16 16:33:13,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475996734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:13,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:13,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 16:33:13,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720325841] [2024-11-16 16:33:13,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:13,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 16:33:13,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:13,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 16:33:13,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:33:13,262 INFO L87 Difference]: Start difference. First operand has 52 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 16:33:13,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:13,286 INFO L93 Difference]: Finished difference Result 96 states and 155 transitions. [2024-11-16 16:33:13,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 16:33:13,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2024-11-16 16:33:13,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:13,293 INFO L225 Difference]: With dead ends: 96 [2024-11-16 16:33:13,293 INFO L226 Difference]: Without dead ends: 47 [2024-11-16 16:33:13,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 16:33:13,302 INFO L432 NwaCegarLoop]: 66 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, 66 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 16:33:13,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:33:13,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-16 16:33:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-16 16:33:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 16:33:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2024-11-16 16:33:13,335 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 95 [2024-11-16 16:33:13,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:13,335 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-11-16 16:33:13,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 16:33:13,335 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2024-11-16 16:33:13,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:33:13,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:13,338 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:13,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 16:33:13,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:13,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:13,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1525067876, now seen corresponding path program 1 times [2024-11-16 16:33:13,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:13,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519441645] [2024-11-16 16:33:13,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:13,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:14,619 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:14,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:14,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519441645] [2024-11-16 16:33:14,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519441645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:14,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:14,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 16:33:14,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549426116] [2024-11-16 16:33:14,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:14,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 16:33:14,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:14,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 16:33:14,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:33:14,623 INFO L87 Difference]: Start difference. First operand 47 states and 66 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:14,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:14,908 INFO L93 Difference]: Finished difference Result 168 states and 236 transitions. [2024-11-16 16:33:14,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 16:33:14,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2024-11-16 16:33:14,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:14,914 INFO L225 Difference]: With dead ends: 168 [2024-11-16 16:33:14,914 INFO L226 Difference]: Without dead ends: 124 [2024-11-16 16:33:14,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 16:33:14,917 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 66 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:33:14,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 202 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:33:14,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-16 16:33:14,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 115. [2024-11-16 16:33:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 74 states have internal predecessors, (87), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 16:33:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 163 transitions. [2024-11-16 16:33:14,950 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 163 transitions. Word has length 95 [2024-11-16 16:33:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:14,952 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 163 transitions. [2024-11-16 16:33:14,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:14,952 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 163 transitions. [2024-11-16 16:33:14,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:33:14,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:14,954 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:14,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 16:33:14,955 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:14,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:14,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1553697027, now seen corresponding path program 1 times [2024-11-16 16:33:14,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:14,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243775036] [2024-11-16 16:33:14,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:14,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:16,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:16,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243775036] [2024-11-16 16:33:16,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243775036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:16,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:16,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 16:33:16,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874261971] [2024-11-16 16:33:16,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:16,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 16:33:16,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:16,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 16:33:16,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 16:33:16,802 INFO L87 Difference]: Start difference. First operand 115 states and 163 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:17,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:17,261 INFO L93 Difference]: Finished difference Result 134 states and 182 transitions. [2024-11-16 16:33:17,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 16:33:17,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2024-11-16 16:33:17,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:17,264 INFO L225 Difference]: With dead ends: 134 [2024-11-16 16:33:17,265 INFO L226 Difference]: Without dead ends: 131 [2024-11-16 16:33:17,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-16 16:33:17,266 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 104 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:33:17,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 262 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:33:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-16 16:33:17,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 120. [2024-11-16 16:33:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 79 states have internal predecessors, (92), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 16:33:17,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2024-11-16 16:33:17,287 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 95 [2024-11-16 16:33:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:17,287 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2024-11-16 16:33:17,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2024-11-16 16:33:17,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:33:17,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:17,289 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:17,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 16:33:17,289 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:17,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:17,289 INFO L85 PathProgramCache]: Analyzing trace with hash -998459934, now seen corresponding path program 1 times [2024-11-16 16:33:17,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:17,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26111449] [2024-11-16 16:33:17,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:17,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:17,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:17,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26111449] [2024-11-16 16:33:17,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26111449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:17,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:17,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 16:33:17,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670399009] [2024-11-16 16:33:17,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:17,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 16:33:17,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:17,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 16:33:17,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 16:33:17,360 INFO L87 Difference]: Start difference. First operand 120 states and 168 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:17,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:17,385 INFO L93 Difference]: Finished difference Result 232 states and 327 transitions. [2024-11-16 16:33:17,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 16:33:17,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2024-11-16 16:33:17,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:17,387 INFO L225 Difference]: With dead ends: 232 [2024-11-16 16:33:17,390 INFO L226 Difference]: Without dead ends: 115 [2024-11-16 16:33:17,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 16:33:17,392 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:33:17,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:33:17,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-16 16:33:17,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-16 16:33:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 16:33:17,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 159 transitions. [2024-11-16 16:33:17,415 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 159 transitions. Word has length 95 [2024-11-16 16:33:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:17,416 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 159 transitions. [2024-11-16 16:33:17,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:17,416 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 159 transitions. [2024-11-16 16:33:17,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:33:17,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:17,417 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:17,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 16:33:17,418 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:17,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:17,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1328554371, now seen corresponding path program 1 times [2024-11-16 16:33:17,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:17,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799542345] [2024-11-16 16:33:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:17,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:17,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:17,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799542345] [2024-11-16 16:33:17,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799542345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:17,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:17,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 16:33:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643946815] [2024-11-16 16:33:17,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:17,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 16:33:17,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:17,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 16:33:17,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 16:33:17,470 INFO L87 Difference]: Start difference. First operand 115 states and 159 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:17,490 INFO L93 Difference]: Finished difference Result 219 states and 305 transitions. [2024-11-16 16:33:17,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 16:33:17,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2024-11-16 16:33:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:17,492 INFO L225 Difference]: With dead ends: 219 [2024-11-16 16:33:17,492 INFO L226 Difference]: Without dead ends: 107 [2024-11-16 16:33:17,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 16:33:17,493 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:33:17,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:33:17,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-16 16:33:17,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-16 16:33:17,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 65 states have (on average 1.0923076923076922) internal successors, (71), 66 states have internal predecessors, (71), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 16:33:17,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2024-11-16 16:33:17,509 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 95 [2024-11-16 16:33:17,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:17,509 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2024-11-16 16:33:17,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:17,510 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2024-11-16 16:33:17,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 16:33:17,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:17,511 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:17,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 16:33:17,511 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:17,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:17,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1151111682, now seen corresponding path program 1 times [2024-11-16 16:33:17,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:17,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435963109] [2024-11-16 16:33:17,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:17,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:17,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:17,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435963109] [2024-11-16 16:33:17,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435963109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:17,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:17,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:33:17,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520714363] [2024-11-16 16:33:17,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:17,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:33:17,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:17,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:33:17,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:33:17,800 INFO L87 Difference]: Start difference. First operand 107 states and 147 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:17,897 INFO L93 Difference]: Finished difference Result 156 states and 212 transitions. [2024-11-16 16:33:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:33:17,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2024-11-16 16:33:17,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:17,899 INFO L225 Difference]: With dead ends: 156 [2024-11-16 16:33:17,899 INFO L226 Difference]: Without dead ends: 112 [2024-11-16 16:33:17,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 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 16:33:17,903 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 38 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:33:17,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 151 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:33:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-16 16:33:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-16 16:33:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.0735294117647058) internal successors, (73), 69 states have internal predecessors, (73), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 16:33:17,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 149 transitions. [2024-11-16 16:33:17,921 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 149 transitions. Word has length 96 [2024-11-16 16:33:17,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:17,925 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 149 transitions. [2024-11-16 16:33:17,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:17,926 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 149 transitions. [2024-11-16 16:33:17,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 16:33:17,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:17,926 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:17,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 16:33:17,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:17,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:17,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1179740833, now seen corresponding path program 1 times [2024-11-16 16:33:17,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:17,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039314348] [2024-11-16 16:33:17,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:17,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:19,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:19,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039314348] [2024-11-16 16:33:19,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039314348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:19,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:19,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 16:33:19,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172572045] [2024-11-16 16:33:19,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:19,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 16:33:19,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:19,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 16:33:19,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-16 16:33:19,111 INFO L87 Difference]: Start difference. First operand 111 states and 149 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:19,231 INFO L93 Difference]: Finished difference Result 133 states and 171 transitions. [2024-11-16 16:33:19,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 16:33:19,231 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2024-11-16 16:33:19,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:19,232 INFO L225 Difference]: With dead ends: 133 [2024-11-16 16:33:19,232 INFO L226 Difference]: Without dead ends: 130 [2024-11-16 16:33:19,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-16 16:33:19,233 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 22 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:33:19,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 290 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:33:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-16 16:33:19,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 120. [2024-11-16 16:33:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 77 states have (on average 1.0649350649350648) internal successors, (82), 78 states have internal predecessors, (82), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 16:33:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 158 transitions. [2024-11-16 16:33:19,255 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 158 transitions. Word has length 96 [2024-11-16 16:33:19,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:19,256 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 158 transitions. [2024-11-16 16:33:19,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:19,256 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 158 transitions. [2024-11-16 16:33:19,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 16:33:19,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:19,258 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:19,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 16:33:19,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:19,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:19,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1627029255, now seen corresponding path program 1 times [2024-11-16 16:33:19,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:19,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840640433] [2024-11-16 16:33:19,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:19,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:19,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:19,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840640433] [2024-11-16 16:33:19,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840640433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:19,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:19,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 16:33:19,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730264686] [2024-11-16 16:33:19,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:19,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 16:33:19,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:19,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 16:33:19,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-16 16:33:19,886 INFO L87 Difference]: Start difference. First operand 120 states and 158 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:20,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:20,063 INFO L93 Difference]: Finished difference Result 150 states and 188 transitions. [2024-11-16 16:33:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 16:33:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 97 [2024-11-16 16:33:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:20,065 INFO L225 Difference]: With dead ends: 150 [2024-11-16 16:33:20,065 INFO L226 Difference]: Without dead ends: 147 [2024-11-16 16:33:20,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-16 16:33:20,066 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 37 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:33:20,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 393 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:33:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-16 16:33:20,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 120. [2024-11-16 16:33:20,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 77 states have (on average 1.0649350649350648) internal successors, (82), 78 states have internal predecessors, (82), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 16:33:20,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 158 transitions. [2024-11-16 16:33:20,075 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 158 transitions. Word has length 97 [2024-11-16 16:33:20,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:20,076 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 158 transitions. [2024-11-16 16:33:20,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:20,076 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 158 transitions. [2024-11-16 16:33:20,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 16:33:20,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:33:20,077 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:20,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 16:33:20,077 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:33:20,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:33:20,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1756111974, now seen corresponding path program 1 times [2024-11-16 16:33:20,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:33:20,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767075199] [2024-11-16 16:33:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:33:20,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:33:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:33:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:33:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:33:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:33:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:33:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:33:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:33:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:33:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:33:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:33:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:33:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:33:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:33:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 16:33:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:33:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 16:33:21,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:33:21,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767075199] [2024-11-16 16:33:21,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767075199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:33:21,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:33:21,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 16:33:21,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373250933] [2024-11-16 16:33:21,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:33:21,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 16:33:21,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:33:21,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 16:33:21,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 16:33:21,856 INFO L87 Difference]: Start difference. First operand 120 states and 158 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:22,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:33:22,296 INFO L93 Difference]: Finished difference Result 144 states and 183 transitions. [2024-11-16 16:33:22,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 16:33:22,296 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 97 [2024-11-16 16:33:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:33:22,296 INFO L225 Difference]: With dead ends: 144 [2024-11-16 16:33:22,297 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 16:33:22,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2024-11-16 16:33:22,298 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 40 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:33:22,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 340 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:33:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 16:33:22,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 16:33:22,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 16:33:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 16:33:22,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2024-11-16 16:33:22,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:33:22,299 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 16:33:22,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 16:33:22,299 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 16:33:22,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 16:33:22,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 16:33:22,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 16:33:22,304 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:33:22,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 16:33:22,660 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 16:33:22,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:33:22 BoogieIcfgContainer [2024-11-16 16:33:22,681 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 16:33:22,681 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 16:33:22,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 16:33:22,682 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 16:33:22,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:33:12" (3/4) ... [2024-11-16 16:33:22,684 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 16:33:22,691 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-16 16:33:22,697 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-16 16:33:22,701 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 16:33:22,701 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 16:33:22,701 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 16:33:22,823 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 16:33:22,824 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 16:33:22,824 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 16:33:22,828 INFO L158 Benchmark]: Toolchain (without parser) took 10685.08ms. Allocated memory was 148.9MB in the beginning and 536.9MB in the end (delta: 388.0MB). Free memory was 77.5MB in the beginning and 446.1MB in the end (delta: -368.6MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-11-16 16:33:22,829 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 148.9MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 16:33:22,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.65ms. Allocated memory is still 148.9MB. Free memory was 77.3MB in the beginning and 63.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 16:33:22,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.12ms. Allocated memory is still 148.9MB. Free memory was 63.0MB in the beginning and 60.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 16:33:22,829 INFO L158 Benchmark]: Boogie Preprocessor took 46.30ms. Allocated memory is still 148.9MB. Free memory was 60.0MB in the beginning and 55.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 16:33:22,829 INFO L158 Benchmark]: IcfgBuilder took 410.75ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 55.8MB in the beginning and 154.5MB in the end (delta: -98.7MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-16 16:33:22,830 INFO L158 Benchmark]: TraceAbstraction took 9809.49ms. Allocated memory was 197.1MB in the beginning and 536.9MB in the end (delta: 339.7MB). Free memory was 153.5MB in the beginning and 451.4MB in the end (delta: -297.9MB). Peak memory consumption was 254.2MB. Max. memory is 16.1GB. [2024-11-16 16:33:22,830 INFO L158 Benchmark]: Witness Printer took 146.52ms. Allocated memory is still 536.9MB. Free memory was 451.4MB in the beginning and 446.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 16:33:22,831 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 148.9MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.65ms. Allocated memory is still 148.9MB. Free memory was 77.3MB in the beginning and 63.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.12ms. Allocated memory is still 148.9MB. Free memory was 63.0MB in the beginning and 60.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.30ms. Allocated memory is still 148.9MB. Free memory was 60.0MB in the beginning and 55.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 410.75ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 55.8MB in the beginning and 154.5MB in the end (delta: -98.7MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9809.49ms. Allocated memory was 197.1MB in the beginning and 536.9MB in the end (delta: 339.7MB). Free memory was 153.5MB in the beginning and 451.4MB in the end (delta: -297.9MB). Peak memory consumption was 254.2MB. Max. memory is 16.1GB. * Witness Printer took 146.52ms. Allocated memory is still 536.9MB. Free memory was 451.4MB in the beginning and 446.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 9, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 307 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 307 mSDsluCounter, 1952 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1335 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 722 IncrementalHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 617 mSDtfsCounter, 722 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=3, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 58 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 852 ConstructedInterpolants, 0 QuantifiedInterpolants, 3408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 3276/3276 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 95]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_4 == \old(var_1_4))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (last_1_var_1_8 == \old(last_1_var_1_8))) RESULT: Ultimate proved your program to be correct! [2024-11-16 16:33:22,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE