./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-131.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:10,307 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:10,418 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab5f875-28d7-4da2-b551-b25e0ec89e60/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:10,427 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:10,428 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:10,460 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:10,460 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:10,461 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:10,461 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:10,461 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:10,462 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:10,462 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:10,462 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:10,462 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:10,462 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:10,463 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:10,463 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:10,463 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:10,463 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:10,463 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:10,463 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:10,463 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:10,464 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:10,464 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:10,464 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:10,465 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:10,465 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:10,886 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:10,901 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:10,904 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:10,908 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:10,908 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:10,910 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab5f875-28d7-4da2-b551-b25e0ec89e60/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-131.smt2
[2025-04-28 21:21:10,915 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:10,920 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:11,090 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab5f875-28d7-4da2-b551-b25e0ec89e60/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-131.smt2
[2025-04-28 21:21:11,098 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:11,100 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:11,101 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:11,101 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:11,101 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:11,104 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,135 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11 Unit
[2025-04-28 21:21:11,136 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:11,137 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:11,137 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:11,137 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:11,155 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,155 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,181 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,182 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,184 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,184 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,186 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,187 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,188 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,199 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:11,200 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:11,200 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:11,200 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:11,203 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (1/1) ...
[2025-04-28 21:21:11,207 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:11,220 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:11,237 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 21:21:11,241 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 21:21:11,259 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:11,259 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:11,259 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:11,259 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure h.DLRunknown.CLN5 given in one single declaration
[2025-04-28 21:21:11,259 INFO  L130     BoogieDeclarations]: Found specification of procedure h.DLRunknown.CLN5
[2025-04-28 21:21:11,260 INFO  L138     BoogieDeclarations]: Found implementation of procedure h.DLRunknown.CLN5
[2025-04-28 21:21:11,260 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure f.DLRunknown.CLN2 given in one single declaration
[2025-04-28 21:21:11,261 INFO  L130     BoogieDeclarations]: Found specification of procedure f.DLRunknown.CLN2
[2025-04-28 21:21:11,261 INFO  L138     BoogieDeclarations]: Found implementation of procedure f.DLRunknown.CLN2
[2025-04-28 21:21:11,261 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure f.DLRunknown.CLN1 given in one single declaration
[2025-04-28 21:21:11,261 INFO  L130     BoogieDeclarations]: Found specification of procedure f.DLRunknown.CLN1
[2025-04-28 21:21:11,261 INFO  L138     BoogieDeclarations]: Found implementation of procedure f.DLRunknown.CLN1
[2025-04-28 21:21:11,261 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:11,261 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:11,261 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:11,320 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:11,322 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:11,436 INFO  L?                        ?]: Removed 3 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:11,436 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:11,459 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:11,460 INFO  L312             CfgBuilder]: Removed 0 assume(true) statements.
[2025-04-28 21:21:11,460 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:11 BoogieIcfgContainer
[2025-04-28 21:21:11,461 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:11,467 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:11,467 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:11,473 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:11,474 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:11" (1/3) ...
[2025-04-28 21:21:11,475 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3f5aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:11, skipping insertion in model container
[2025-04-28 21:21:11,476 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:11" (2/3) ...
[2025-04-28 21:21:11,476 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3f5aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:11, skipping insertion in model container
[2025-04-28 21:21:11,476 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:11" (3/3) ...
[2025-04-28 21:21:11,478 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:11,498 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:11,504 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 5 procedures, 20 locations, 23 edges, 5 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:11,570 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:11,597 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;@6f394935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:11,597 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:11,604 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 20 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2025-04-28 21:21:11,616 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2025-04-28 21:21:11,616 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:11,618 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:11,618 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:11,626 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:11,626 INFO  L85        PathProgramCache]: Analyzing trace with hash -1250204792, now seen corresponding path program 1 times
[2025-04-28 21:21:11,637 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:11,637 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223156173]
[2025-04-28 21:21:11,638 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:11,640 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:11,677 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes.
[2025-04-28 21:21:11,711 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements.
[2025-04-28 21:21:11,711 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:11,711 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:11,996 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 21:21:11,997 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:12,001 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223156173]
[2025-04-28 21:21:12,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223156173] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:12,002 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:12,007 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-04-28 21:21:12,009 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282735249]
[2025-04-28 21:21:12,010 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:12,015 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-28 21:21:12,016 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:12,058 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-28 21:21:12,060 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:12,065 INFO  L87              Difference]: Start difference. First operand  has 20 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand  has 6 states, 4 states have (on average 2.25) internal successors, (9), 6 states have internal predecessors, (9), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4)
[2025-04-28 21:21:12,139 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:12,139 INFO  L93              Difference]: Finished difference Result 14 states and 13 transitions.
[2025-04-28 21:21:12,141 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-04-28 21:21:12,142 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 4 states have (on average 2.25) internal successors, (9), 6 states have internal predecessors, (9), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 17
[2025-04-28 21:21:12,143 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:12,149 INFO  L225             Difference]: With dead ends: 14
[2025-04-28 21:21:12,150 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:12,152 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2025-04-28 21:21:12,156 INFO  L437           NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:12,157 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:12,175 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:12,188 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:12,189 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)
[2025-04-28 21:21:12,193 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:12,194 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2025-04-28 21:21:12,195 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:12,195 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:12,195 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 4 states have (on average 2.25) internal successors, (9), 6 states have internal predecessors, (9), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4)
[2025-04-28 21:21:12,195 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:12,195 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:12,199 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:12,199 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:12,204 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2025-04-28 21:21:12,207 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:12,212 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:12 BoogieIcfgContainer
[2025-04-28 21:21:12,212 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:12,213 INFO  L158              Benchmark]: Toolchain (without parser) took 1113.31ms. Allocated memory is still 234.9MB. Free memory was 162.0MB in the beginning and 128.2MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
[2025-04-28 21:21:12,213 INFO  L158              Benchmark]: SmtParser took 0.38ms. Allocated memory is still 234.9MB. Free memory is still 168.8MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:12,214 INFO  L158              Benchmark]: ChcToBoogie took 35.29ms. Allocated memory is still 234.9MB. Free memory was 162.0MB in the beginning and 161.2MB in the end (delta: 798.5kB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:12,214 INFO  L158              Benchmark]: Boogie Preprocessor took 62.30ms. Allocated memory is still 234.9MB. Free memory was 161.2MB in the beginning and 158.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:12,215 INFO  L158              Benchmark]: RCFGBuilder took 260.93ms. Allocated memory is still 234.9MB. Free memory was 158.9MB in the beginning and 151.5MB in the end (delta: 7.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:12,215 INFO  L158              Benchmark]: TraceAbstraction took 744.86ms. Allocated memory is still 234.9MB. Free memory was 150.4MB in the beginning and 128.2MB in the end (delta: 22.3MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:12,217 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 168.8MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 35.29ms. Allocated memory is still 234.9MB. Free memory was 162.0MB in the beginning and 161.2MB in the end (delta: 798.5kB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 62.30ms. Allocated memory is still 234.9MB. Free memory was 161.2MB in the beginning and 158.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 260.93ms. Allocated memory is still 234.9MB. Free memory was 158.9MB in the beginning and 151.5MB in the end (delta: 7.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * TraceAbstraction took 744.86ms. Allocated memory is still 234.9MB. Free memory was 150.4MB in the beginning and 128.2MB in the end (delta: 22.3MB). Peak memory consumption was 16.8MB. 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
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 5 procedures, 20 locations, 23 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-04-28 21:21:12,239 INFO  L540       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
sat
