./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-016.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:49,593 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:49,689 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa9a9e8-3af4-426f-a76c-e40792b2305d/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:49,694 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:49,695 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:49,729 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:49,731 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:49,731 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:49,732 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:49,733 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:49,734 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:49,734 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:49,734 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:49,734 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:49,735 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:49,735 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:49,735 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:49,735 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:49,735 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:49,736 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:49,736 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:49,736 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:49,736 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:49,736 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:49,736 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:49,737 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:49,737 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:50,075 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:50,086 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:50,090 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:50,091 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:50,092 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:50,095 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa9a9e8-3af4-426f-a76c-e40792b2305d/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-016.smt2
[2025-04-28 21:21:50,098 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:50,102 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:50,378 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa9a9e8-3af4-426f-a76c-e40792b2305d/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-016.smt2
[2025-04-28 21:21:50,384 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:50,386 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:50,387 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:50,387 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:50,387 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:50,392 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,439 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50 Unit
[2025-04-28 21:21:50,440 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:50,441 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:50,442 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:50,442 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:50,461 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,461 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,503 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,503 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,506 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,507 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,513 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,515 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,519 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,540 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:50,541 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:50,544 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:50,544 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:50,545 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,548 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:50,563 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:50,580 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 21:21:50,585 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 21:21:50,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:50,599 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:50,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:50,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure main.ATverifier.error.split given in one single declaration
[2025-04-28 21:21:50,599 INFO  L130     BoogieDeclarations]: Found specification of procedure main.ATverifier.error.split
[2025-04-28 21:21:50,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure main.ATverifier.error.split
[2025-04-28 21:21:50,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure eval given in one single declaration
[2025-04-28 21:21:50,600 INFO  L130     BoogieDeclarations]: Found specification of procedure eval
[2025-04-28 21:21:50,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure eval
[2025-04-28 21:21:50,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure eval.AT.split given in one single declaration
[2025-04-28 21:21:50,600 INFO  L130     BoogieDeclarations]: Found specification of procedure eval.AT.split
[2025-04-28 21:21:50,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure eval.AT.split
[2025-04-28 21:21:50,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure eval.AT_1 given in one single declaration
[2025-04-28 21:21:50,600 INFO  L130     BoogieDeclarations]: Found specification of procedure eval.AT_1
[2025-04-28 21:21:50,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure eval.AT_1
[2025-04-28 21:21:50,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure main.AT_bb given in one single declaration
[2025-04-28 21:21:50,600 INFO  L130     BoogieDeclarations]: Found specification of procedure main.AT_bb
[2025-04-28 21:21:50,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure main.AT_bb
[2025-04-28 21:21:50,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure main.ATentry given in one single declaration
[2025-04-28 21:21:50,601 INFO  L130     BoogieDeclarations]: Found specification of procedure main.ATentry
[2025-04-28 21:21:50,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure main.ATentry
[2025-04-28 21:21:50,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure __VERIFIER_assert given in one single declaration
[2025-04-28 21:21:50,601 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2025-04-28 21:21:50,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2025-04-28 21:21:50,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure __VERIFIER_assert.AT_call2 given in one single declaration
[2025-04-28 21:21:50,604 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert.AT_call2
[2025-04-28 21:21:50,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert.AT_call2
[2025-04-28 21:21:50,604 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure __VERIFIER_assert.AT_1 given in one single declaration
[2025-04-28 21:21:50,605 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert.AT_1
[2025-04-28 21:21:50,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert.AT_1
[2025-04-28 21:21:50,605 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:50,605 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:50,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:50,690 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:50,693 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:50,876 INFO  L?                        ?]: Removed 31 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:50,877 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:50,892 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:50,892 INFO  L312             CfgBuilder]: Removed 4 assume(true) statements.
[2025-04-28 21:21:50,893 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:50 BoogieIcfgContainer
[2025-04-28 21:21:50,893 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:50,899 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:50,899 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:50,906 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:50,906 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:50" (1/3) ...
[2025-04-28 21:21:50,906 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ffc45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:50, skipping insertion in model container
[2025-04-28 21:21:50,907 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (2/3) ...
[2025-04-28 21:21:50,907 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ffc45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:50, skipping insertion in model container
[2025-04-28 21:21:50,907 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:50" (3/3) ...
[2025-04-28 21:21:50,908 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:50,924 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:50,928 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 11 procedures, 42 locations, 62 edges, 11 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:50,970 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:50,985 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;@79b52d8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:50,985 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:50,990 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 42 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 22 states have internal predecessors, (26), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12)
[2025-04-28 21:21:51,001 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2025-04-28 21:21:51,001 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:51,002 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:51,002 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:51,009 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:51,010 INFO  L85        PathProgramCache]: Analyzing trace with hash -1089740061, now seen corresponding path program 1 times
[2025-04-28 21:21:51,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:51,019 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302339397]
[2025-04-28 21:21:51,020 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:51,020 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:51,061 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes.
[2025-04-28 21:21:51,093 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements.
[2025-04-28 21:21:51,093 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:51,094 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:51,257 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 21:21:51,257 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:51,260 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302339397]
[2025-04-28 21:21:51,261 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302339397] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:51,261 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:51,264 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-28 21:21:51,265 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677300878]
[2025-04-28 21:21:51,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:51,270 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-04-28 21:21:51,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:51,295 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-04-28 21:21:51,296 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:51,297 INFO  L87              Difference]: Start difference. First operand  has 42 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 22 states have internal predecessors, (26), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Second operand  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5)
[2025-04-28 21:21:51,343 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:51,344 INFO  L93              Difference]: Finished difference Result 42 states and 50 transitions.
[2025-04-28 21:21:51,349 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-04-28 21:21:51,351 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 19
[2025-04-28 21:21:51,351 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:51,360 INFO  L225             Difference]: With dead ends: 42
[2025-04-28 21:21:51,360 INFO  L226             Difference]: Without dead ends: 42
[2025-04-28 21:21:51,362 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:51,365 INFO  L437           NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:51,366 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 131 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:51,380 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2025-04-28 21:21:51,427 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2025-04-28 21:21:51,428 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 22 states have internal predecessors, (25), 12 states have call successors, (12), 10 states have call predecessors, (12), 11 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13)
[2025-04-28 21:21:51,433 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions.
[2025-04-28 21:21:51,435 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 19
[2025-04-28 21:21:51,436 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:51,436 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 50 transitions.
[2025-04-28 21:21:51,437 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5)
[2025-04-28 21:21:51,437 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions.
[2025-04-28 21:21:51,438 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2025-04-28 21:21:51,439 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:51,439 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:51,439 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:51,439 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:51,440 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:51,440 INFO  L85        PathProgramCache]: Analyzing trace with hash 777187357, now seen corresponding path program 1 times
[2025-04-28 21:21:51,440 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:51,440 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053793057]
[2025-04-28 21:21:51,441 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:51,441 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:51,452 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes.
[2025-04-28 21:21:51,463 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements.
[2025-04-28 21:21:51,466 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:51,466 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:51,564 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 21:21:51,564 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:51,564 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053793057]
[2025-04-28 21:21:51,564 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053793057] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:51,564 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:51,564 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-28 21:21:51,564 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507329670]
[2025-04-28 21:21:51,565 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:51,565 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-04-28 21:21:51,566 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:51,566 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-04-28 21:21:51,566 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:51,566 INFO  L87              Difference]: Start difference. First operand 42 states and 50 transitions. Second operand  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5)
[2025-04-28 21:21:51,605 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:51,605 INFO  L93              Difference]: Finished difference Result 46 states and 54 transitions.
[2025-04-28 21:21:51,606 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-04-28 21:21:51,606 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 19
[2025-04-28 21:21:51,606 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:51,607 INFO  L225             Difference]: With dead ends: 46
[2025-04-28 21:21:51,607 INFO  L226             Difference]: Without dead ends: 46
[2025-04-28 21:21:51,609 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:51,610 INFO  L437           NwaCegarLoop]: 49 mSDtfsCounter, 1 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:51,610 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 136 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:51,611 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2025-04-28 21:21:51,618 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42.
[2025-04-28 21:21:51,619 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 12 states have call successors, (12), 10 states have call predecessors, (12), 11 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13)
[2025-04-28 21:21:51,620 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions.
[2025-04-28 21:21:51,620 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 19
[2025-04-28 21:21:51,620 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:51,620 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 50 transitions.
[2025-04-28 21:21:51,620 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5)
[2025-04-28 21:21:51,621 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions.
[2025-04-28 21:21:51,621 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2025-04-28 21:21:51,622 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:51,622 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:51,622 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-04-28 21:21:51,622 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:51,623 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:51,623 INFO  L85        PathProgramCache]: Analyzing trace with hash 1229130473, now seen corresponding path program 1 times
[2025-04-28 21:21:51,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:51,623 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254985145]
[2025-04-28 21:21:51,623 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:51,624 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:51,637 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes.
[2025-04-28 21:21:51,684 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements.
[2025-04-28 21:21:51,684 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:51,685 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:52,059 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 21:21:52,059 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:52,059 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254985145]
[2025-04-28 21:21:52,059 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254985145] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:52,059 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:52,059 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-04-28 21:21:52,060 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105870000]
[2025-04-28 21:21:52,060 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:52,060 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-04-28 21:21:52,060 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:52,061 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-04-28 21:21:52,061 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-28 21:21:52,061 INFO  L87              Difference]: Start difference. First operand 42 states and 50 transitions. Second operand  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7)
[2025-04-28 21:21:52,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:52,100 INFO  L93              Difference]: Finished difference Result 36 states and 44 transitions.
[2025-04-28 21:21:52,101 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-04-28 21:21:52,101 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 26
[2025-04-28 21:21:52,102 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:52,102 INFO  L225             Difference]: With dead ends: 36
[2025-04-28 21:21:52,102 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:52,103 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-28 21:21:52,104 INFO  L437           NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:52,105 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:52,106 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:52,109 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:52,109 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 21:21:52,110 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:52,110 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2025-04-28 21:21:52,110 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:52,110 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:52,110 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7)
[2025-04-28 21:21:52,110 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:52,111 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:52,116 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:52,117 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-04-28 21:21:52,121 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-04-28 21:21:52,124 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:52,128 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:52 BoogieIcfgContainer
[2025-04-28 21:21:52,129 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:52,131 INFO  L158              Benchmark]: Toolchain (without parser) took 1744.59ms. Allocated memory was 234.9MB in the beginning and 167.8MB in the end (delta: -67.1MB). Free memory was 160.6MB in the beginning and 119.5MB in the end (delta: 41.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,132 INFO  L158              Benchmark]: SmtParser took 0.46ms. Allocated memory is still 234.9MB. Free memory is still 170.1MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,133 INFO  L158              Benchmark]: ChcToBoogie took 54.17ms. Allocated memory is still 234.9MB. Free memory was 160.6MB in the beginning and 159.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,133 INFO  L158              Benchmark]: Boogie Preprocessor took 98.83ms. Allocated memory is still 234.9MB. Free memory was 159.5MB in the beginning and 157.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,134 INFO  L158              Benchmark]: RCFGBuilder took 351.97ms. Allocated memory is still 234.9MB. Free memory was 157.0MB in the beginning and 146.2MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:52,134 INFO  L158              Benchmark]: TraceAbstraction took 1230.38ms. Allocated memory was 234.9MB in the beginning and 167.8MB in the end (delta: -67.1MB). Free memory was 145.7MB in the beginning and 119.5MB in the end (delta: 26.2MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,136 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.46ms. Allocated memory is still 234.9MB. Free memory is still 170.1MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 54.17ms. Allocated memory is still 234.9MB. Free memory was 160.6MB in the beginning and 159.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 98.83ms. Allocated memory is still 234.9MB. Free memory was 159.5MB in the beginning and 157.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 351.97ms. Allocated memory is still 234.9MB. Free memory was 157.0MB in the beginning and 146.2MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1230.38ms. Allocated memory was 234.9MB in the beginning and 167.8MB in the end (delta: -67.1MB). Free memory was 145.7MB in the beginning and 119.5MB in the end (delta: 26.2MB). There was no memory consumed. 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 11 procedures, 42 locations, 62 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 426 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 288 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 138 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 21:21:52,158 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...
sat
