./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Lin-Arrays/chc-comp24-LIA-Lin-Arrays-127.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:19,164 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:19,231 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2940e44-50e1-4d24-be12-c7d972afb3a6/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:19,236 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:19,236 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:19,269 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:19,269 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:19,270 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:19,270 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:19,270 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:19,270 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:19,271 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:19,271 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:19,271 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:19,271 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:19,271 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:19,271 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:19,271 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:19,271 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:19,271 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:19,272 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:19,272 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:19,272 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:19,272 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:19,272 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:19,275 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:19,275 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:19,575 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:19,591 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:19,594 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:19,597 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:19,597 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:19,598 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2940e44-50e1-4d24-be12-c7d972afb3a6/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin-Arrays/chc-comp24-LIA-Lin-Arrays-127.smt2
[2025-04-28 21:21:19,601 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:19,606 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:19,855 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2940e44-50e1-4d24-be12-c7d972afb3a6/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin-Arrays/chc-comp24-LIA-Lin-Arrays-127.smt2
[2025-04-28 21:21:19,859 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:19,860 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:19,861 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:19,861 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:19,861 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:19,864 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,899 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19 Unit
[2025-04-28 21:21:19,900 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:19,901 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:19,902 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:19,903 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:19,920 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,920 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,951 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,952 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,955 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,957 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,959 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,960 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,961 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,974 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:19,975 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:19,975 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:19,975 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:19,976 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (1/1) ...
[2025-04-28 21:21:19,979 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:19,994 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:20,017 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-04-28 21:21:20,023 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-04-28 21:21:20,039 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:20,039 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:20,039 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:20,039 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure END_QUERY given in one single declaration
[2025-04-28 21:21:20,040 INFO  L130     BoogieDeclarations]: Found specification of procedure END_QUERY
[2025-04-28 21:21:20,040 INFO  L138     BoogieDeclarations]: Found implementation of procedure END_QUERY
[2025-04-28 21:21:20,040 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:20,041 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:20,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:20,100 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:20,102 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:20,338 INFO  L?                        ?]: Removed 34 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:20,344 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:20,364 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:20,364 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2025-04-28 21:21:20,365 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:20 BoogieIcfgContainer
[2025-04-28 21:21:20,365 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:20,369 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:20,369 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:20,374 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:20,375 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:19" (1/3) ...
[2025-04-28 21:21:20,376 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afd52b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:20, skipping insertion in model container
[2025-04-28 21:21:20,376 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:19" (2/3) ...
[2025-04-28 21:21:20,376 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afd52b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:20, skipping insertion in model container
[2025-04-28 21:21:20,376 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:20" (3/3) ...
[2025-04-28 21:21:20,379 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:20,399 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:20,401 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 3 procedures, 11 locations, 21 edges, 3 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:20,448 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:20,461 INFO  L340      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=None, 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;@4e125c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:20,462 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:20,466 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 11 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2025-04-28 21:21:20,473 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2025-04-28 21:21:20,473 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:20,474 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:20,474 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:20,480 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:20,481 INFO  L85        PathProgramCache]: Analyzing trace with hash -917442019, now seen corresponding path program 1 times
[2025-04-28 21:21:20,489 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:20,490 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898362736]
[2025-04-28 21:21:20,490 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:20,491 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:20,512 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-04-28 21:21:20,514 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-04-28 21:21:20,515 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:20,515 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:20,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:20,548 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:20,548 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898362736]
[2025-04-28 21:21:20,549 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898362736] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:20,549 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:20,552 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-04-28 21:21:20,554 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550148561]
[2025-04-28 21:21:20,555 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:20,559 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-04-28 21:21:20,559 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:20,591 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-04-28 21:21:20,592 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-04-28 21:21:20,595 INFO  L87              Difference]: Start difference. First operand  has 11 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 2 states, 2 states have (on average 2.0) internal successors, (4), 1 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2025-04-28 21:21:20,615 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:20,615 INFO  L93              Difference]: Finished difference Result 9 states and 9 transitions.
[2025-04-28 21:21:20,616 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-04-28 21:21:20,617 INFO  L79                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 1 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 8
[2025-04-28 21:21:20,617 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:20,623 INFO  L225             Difference]: With dead ends: 9
[2025-04-28 21:21:20,623 INFO  L226             Difference]: Without dead ends: 9
[2025-04-28 21:21:20,625 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-04-28 21:21:20,629 INFO  L437           NwaCegarLoop]: 9 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, 9 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
[2025-04-28 21:21:20,630 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:20,647 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2025-04-28 21:21:20,662 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2025-04-28 21:21:20,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2025-04-28 21:21:20,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2025-04-28 21:21:20,668 INFO  L79                 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8
[2025-04-28 21:21:20,668 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:20,668 INFO  L485      AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2025-04-28 21:21:20,668 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 1 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2025-04-28 21:21:20,669 INFO  L278                IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2025-04-28 21:21:20,669 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2025-04-28 21:21:20,669 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:20,669 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:20,670 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:20,670 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:20,672 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:20,673 INFO  L85        PathProgramCache]: Analyzing trace with hash -1375508435, now seen corresponding path program 1 times
[2025-04-28 21:21:20,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:20,673 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112837558]
[2025-04-28 21:21:20,673 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:20,674 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:20,687 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-04-28 21:21:20,726 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-04-28 21:21:20,728 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:20,728 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-04-28 21:21:20,728 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-04-28 21:21:20,733 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-04-28 21:21:20,750 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-04-28 21:21:20,750 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:20,751 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-04-28 21:21:20,771 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-04-28 21:21:20,772 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2025-04-28 21:21:20,774 INFO  L790   garLoopResultBuilder]: Registering result UNSAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:20,776 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-04-28 21:21:20,781 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1]
[2025-04-28 21:21:20,821 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:20,827 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:20 BoogieIcfgContainer
[2025-04-28 21:21:20,828 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:20,829 INFO  L158              Benchmark]: Toolchain (without parser) took 968.53ms. Allocated memory is still 234.9MB. Free memory was 161.2MB in the beginning and 194.4MB in the end (delta: -33.1MB). Peak memory consumption was 39.9MB. Max. memory is 33.6GB.
[2025-04-28 21:21:20,829 INFO  L158              Benchmark]: SmtParser took 0.38ms. Allocated memory is still 234.9MB. Free memory is still 172.1MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:20,829 INFO  L158              Benchmark]: ChcToBoogie took 39.41ms. Allocated memory is still 234.9MB. Free memory was 161.2MB in the beginning and 160.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:20,830 INFO  L158              Benchmark]: Boogie Preprocessor took 73.16ms. Allocated memory is still 234.9MB. Free memory was 160.1MB in the beginning and 157.3MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:20,830 INFO  L158              Benchmark]: RCFGBuilder took 390.25ms. Allocated memory is still 234.9MB. Free memory was 157.3MB in the beginning and 143.7MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:20,830 INFO  L158              Benchmark]: TraceAbstraction took 458.83ms. Allocated memory is still 234.9MB. Free memory was 143.1MB in the beginning and 194.4MB in the end (delta: -51.2MB). Peak memory consumption was 23.1MB. Max. memory is 33.6GB.
[2025-04-28 21:21:20,834 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.38ms. Allocated memory is still 234.9MB. Free memory is still 172.1MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 39.41ms. Allocated memory is still 234.9MB. Free memory was 161.2MB in the beginning and 160.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 73.16ms. Allocated memory is still 234.9MB. Free memory was 160.1MB in the beginning and 157.3MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 390.25ms. Allocated memory is still 234.9MB. Free memory was 157.3MB in the beginning and 143.7MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 458.83ms. Allocated memory is still 234.9MB. Free memory was 143.1MB in the beginning and 194.4MB in the end (delta: -51.2MB). Peak memory consumption was 23.1MB. Max. memory is 33.6GB.
 * 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
  - CounterExampleResult [Unknown line] : the set of constraint Horn clauses is unsatisfiable
    the set of constraint Horn clauses is unsatisfiable
We found a FailurePath: 
[L0]  CALL  call False();
[L0]  CALL  call END_QUERY();
[L0]        assume ((((((((((((((((((hbv_END_QUERY_K_3 == hbv_END_QUERY_B_4 && hbv_END_QUERY_I_15 == hbv_END_QUERY_C_16) && !(0 <= hbv_END_QUERY_Q_12)) && hbv_END_QUERY_A_5 + 1 != 0) && hbv_END_QUERY_O_7[hbv_END_QUERY_Q_8] == hbv_END_QUERY_O_9[hbv_END_QUERY_Q_8]) && !(hbv_END_QUERY_I_15 < 0)) && !(hbv_END_QUERY_F_13 < 0)) && hbv_END_QUERY_E_10 == hbv_END_QUERY_D_11) && hbv_END_QUERY_F_13 == hbv_END_QUERY_F_14) && hbv_END_QUERY_H_17 == hbv_END_QUERY_J_6) && hbv_END_QUERY_Q_12 + 1 != 0) && !(0 <= hbv_END_QUERY_A_5)) && !(hbv_END_QUERY_C_16 < 0)) && !(hbv_END_QUERY_M_1 < 0)) && hbv_END_QUERY_A_5 + hbv_END_QUERY_J_6 + 1 == 0) && hbv_END_QUERY_O_9[hbv_END_QUERY_M_1 := -1 + -1 * hbv_END_QUERY_A_5] != hbv_END_QUERY_O_7[hbv_END_QUERY_L_2 := hbv_END_QUERY_J_6]) && hbv_END_QUERY_A_5 == hbv_END_QUERY_Q_12) && hbv_END_QUERY_M_1 == hbv_END_QUERY_L_2) && !(hbv_END_QUERY_F_14 < 0)) && !(hbv_END_QUERY_L_2 < 0);
[L0]  RET   call END_QUERY();
[L0]  RET   call False();
[L0]        assert false;

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 11 locations, 21 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2025-04-28 21:21:20,852 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
unsat
