./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-032.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:25,453 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:25,560 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1edc6b-d449-4a72-9e80-86bd002c0f92/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:25,567 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:25,567 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:25,602 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:25,604 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:25,604 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:25,606 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:25,606 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:25,608 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:25,608 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:25,608 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:25,608 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:25,609 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:25,609 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:25,609 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:25,609 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:25,610 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:25,610 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:25,610 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:25,610 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:25,610 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:25,610 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:25,610 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:25,611 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:25,611 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:25,964 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:25,975 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:25,978 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:25,981 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:25,982 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:25,983 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1edc6b-d449-4a72-9e80-86bd002c0f92/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-032.smt2
[2025-04-28 21:21:25,986 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:25,993 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:26,507 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1edc6b-d449-4a72-9e80-86bd002c0f92/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-032.smt2
[2025-04-28 21:21:26,513 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:26,516 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:26,517 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:26,517 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:26,517 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:26,520 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,577 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26 Unit
[2025-04-28 21:21:26,577 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:26,578 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:26,579 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:26,579 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:26,597 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,597 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,638 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,638 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,646 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,648 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,651 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,654 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,657 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,681 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:26,682 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:26,682 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:26,682 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:26,683 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (1/1) ...
[2025-04-28 21:21:26,686 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:26,705 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:26,720 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 21:21:26,723 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 21:21:26,736 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:26,737 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:26,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:26,737 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure realizable given in one single declaration
[2025-04-28 21:21:26,737 INFO  L130     BoogieDeclarations]: Found specification of procedure realizable
[2025-04-28 21:21:26,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure realizable
[2025-04-28 21:21:26,738 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcStart__syn given in one single declaration
[2025-04-28 21:21:26,738 INFO  L130     BoogieDeclarations]: Found specification of procedure funcStart__syn
[2025-04-28 21:21:26,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcStart__syn
[2025-04-28 21:21:26,738 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcS__syn given in one single declaration
[2025-04-28 21:21:26,738 INFO  L130     BoogieDeclarations]: Found specification of procedure funcS__syn
[2025-04-28 21:21:26,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcS__syn
[2025-04-28 21:21:26,739 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcS1__syn given in one single declaration
[2025-04-28 21:21:26,739 INFO  L130     BoogieDeclarations]: Found specification of procedure funcS1__syn
[2025-04-28 21:21:26,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcS1__syn
[2025-04-28 21:21:26,739 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcA__syn given in one single declaration
[2025-04-28 21:21:26,740 INFO  L130     BoogieDeclarations]: Found specification of procedure funcA__syn
[2025-04-28 21:21:26,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcA__syn
[2025-04-28 21:21:26,740 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcE__syn given in one single declaration
[2025-04-28 21:21:26,740 INFO  L130     BoogieDeclarations]: Found specification of procedure funcE__syn
[2025-04-28 21:21:26,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcE__syn
[2025-04-28 21:21:26,740 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcB__syn given in one single declaration
[2025-04-28 21:21:26,740 INFO  L130     BoogieDeclarations]: Found specification of procedure funcB__syn
[2025-04-28 21:21:26,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcB__syn
[2025-04-28 21:21:26,740 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcStart__sem given in one single declaration
[2025-04-28 21:21:26,740 INFO  L130     BoogieDeclarations]: Found specification of procedure funcStart__sem
[2025-04-28 21:21:26,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcStart__sem
[2025-04-28 21:21:26,740 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcB__sem given in one single declaration
[2025-04-28 21:21:26,740 INFO  L130     BoogieDeclarations]: Found specification of procedure funcB__sem
[2025-04-28 21:21:26,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcB__sem
[2025-04-28 21:21:26,741 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcA__sem given in one single declaration
[2025-04-28 21:21:26,741 INFO  L130     BoogieDeclarations]: Found specification of procedure funcA__sem
[2025-04-28 21:21:26,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcA__sem
[2025-04-28 21:21:26,741 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcS__sem given in one single declaration
[2025-04-28 21:21:26,741 INFO  L130     BoogieDeclarations]: Found specification of procedure funcS__sem
[2025-04-28 21:21:26,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcS__sem
[2025-04-28 21:21:26,741 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcS1__sem given in one single declaration
[2025-04-28 21:21:26,741 INFO  L130     BoogieDeclarations]: Found specification of procedure funcS1__sem
[2025-04-28 21:21:26,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcS1__sem
[2025-04-28 21:21:26,741 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure funcE__sem given in one single declaration
[2025-04-28 21:21:26,741 INFO  L130     BoogieDeclarations]: Found specification of procedure funcE__sem
[2025-04-28 21:21:26,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure funcE__sem
[2025-04-28 21:21:26,742 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:26,742 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:26,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:26,934 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:26,937 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:27,451 INFO  L?                        ?]: Removed 102 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:27,451 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:27,470 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:27,472 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2025-04-28 21:21:27,472 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:27 BoogieIcfgContainer
[2025-04-28 21:21:27,473 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:27,475 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:27,475 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:27,480 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:27,480 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:26" (1/3) ...
[2025-04-28 21:21:27,481 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c16387c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:27, skipping insertion in model container
[2025-04-28 21:21:27,481 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:26" (2/3) ...
[2025-04-28 21:21:27,482 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c16387c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:27, skipping insertion in model container
[2025-04-28 21:21:27,482 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:27" (3/3) ...
[2025-04-28 21:21:27,484 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:27,501 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:27,505 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 15 procedures, 80 locations, 152 edges, 15 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:27,567 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:27,584 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;@346f1a14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:27,584 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:27,590 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 80 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 39 states have internal predecessors, (47), 35 states have call successors, (35), 14 states have call predecessors, (35), 14 states have return successors, (35), 27 states have call predecessors, (35), 35 states have call successors, (35)
[2025-04-28 21:21:27,606 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2025-04-28 21:21:27,607 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:27,608 INFO  L218           NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:27,608 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:27,614 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:27,615 INFO  L85        PathProgramCache]: Analyzing trace with hash -1224502100, now seen corresponding path program 1 times
[2025-04-28 21:21:27,624 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:27,625 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010450955]
[2025-04-28 21:21:27,625 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:27,626 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:27,726 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes.
[2025-04-28 21:21:27,791 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements.
[2025-04-28 21:21:27,794 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:27,794 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:29,149 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked.
[2025-04-28 21:21:29,150 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:29,150 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010450955]
[2025-04-28 21:21:29,151 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010450955] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:29,152 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:29,156 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-04-28 21:21:29,158 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630066413]
[2025-04-28 21:21:29,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:29,166 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-28 21:21:29,166 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:29,231 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-28 21:21:29,235 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:29,243 INFO  L87              Difference]: Start difference. First operand  has 80 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 39 states have internal predecessors, (47), 35 states have call successors, (35), 14 states have call predecessors, (35), 14 states have return successors, (35), 27 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 6 states, 4 states have (on average 4.75) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-04-28 21:21:29,477 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:29,478 INFO  L93              Difference]: Finished difference Result 84 states and 123 transitions.
[2025-04-28 21:21:29,481 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-04-28 21:21:29,482 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 4 states have (on average 4.75) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 64
[2025-04-28 21:21:29,483 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:29,495 INFO  L225             Difference]: With dead ends: 84
[2025-04-28 21:21:29,495 INFO  L226             Difference]: Without dead ends: 80
[2025-04-28 21:21:29,497 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:29,504 INFO  L437           NwaCegarLoop]: 112 mSDtfsCounter, 2 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:29,508 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 545 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-04-28 21:21:29,526 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2025-04-28 21:21:29,567 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80.
[2025-04-28 21:21:29,568 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 80 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 38 states have internal predecessors, (46), 35 states have call successors, (35), 14 states have call predecessors, (35), 15 states have return successors, (36), 27 states have call predecessors, (36), 35 states have call successors, (36)
[2025-04-28 21:21:29,578 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions.
[2025-04-28 21:21:29,580 INFO  L79                 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 64
[2025-04-28 21:21:29,580 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:29,581 INFO  L485      AbstractCegarLoop]: Abstraction has 80 states and 117 transitions.
[2025-04-28 21:21:29,581 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 4 states have (on average 4.75) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-04-28 21:21:29,581 INFO  L278                IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions.
[2025-04-28 21:21:29,587 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2025-04-28 21:21:29,590 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:29,590 INFO  L218           NwaCegarLoop]: trace histogram [7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:29,591 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:29,591 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:29,592 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:29,593 INFO  L85        PathProgramCache]: Analyzing trace with hash -1478043367, now seen corresponding path program 1 times
[2025-04-28 21:21:29,593 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:29,593 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63662554]
[2025-04-28 21:21:29,594 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:29,594 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:29,709 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes.
[2025-04-28 21:21:29,895 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements.
[2025-04-28 21:21:29,896 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:29,897 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:33,148 INFO  L134       CoverageAnalysis]: Checked inductivity of 128 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2025-04-28 21:21:33,148 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:33,149 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63662554]
[2025-04-28 21:21:33,150 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63662554] provided 0 perfect and 1 imperfect interpolant sequences
[2025-04-28 21:21:33,150 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625253635]
[2025-04-28 21:21:33,150 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:33,150 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-04-28 21:21:33,153 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:33,158 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-04-28 21:21:33,166 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-04-28 21:21:33,510 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes.
[2025-04-28 21:21:33,866 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements.
[2025-04-28 21:21:33,867 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:33,867 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:33,877 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1469 conjuncts, 15 conjuncts are in the unsatisfiable core
[2025-04-28 21:21:33,896 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-04-28 21:21:34,001 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2025-04-28 21:21:34,014 INFO  L354             Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 18
[2025-04-28 21:21:34,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked.
[2025-04-28 21:21:34,426 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-04-28 21:21:36,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked.
[2025-04-28 21:21:36,450 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625253635] provided 0 perfect and 2 imperfect interpolant sequences
[2025-04-28 21:21:36,450 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-04-28 21:21:36,450 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 10] total 25
[2025-04-28 21:21:36,451 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862096907]
[2025-04-28 21:21:36,451 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-04-28 21:21:36,454 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2025-04-28 21:21:36,455 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:36,456 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2025-04-28 21:21:36,457 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600
[2025-04-28 21:21:36,457 INFO  L87              Difference]: Start difference. First operand 80 states and 117 transitions. Second operand  has 25 states, 13 states have (on average 3.923076923076923) internal successors, (51), 21 states have internal predecessors, (51), 16 states have call successors, (39), 1 states have call predecessors, (39), 13 states have return successors, (41), 15 states have call predecessors, (41), 16 states have call successors, (41)
[2025-04-28 21:21:37,521 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:37,521 INFO  L93              Difference]: Finished difference Result 113 states and 180 transitions.
[2025-04-28 21:21:37,522 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2025-04-28 21:21:37,522 INFO  L79                 Accepts]: Start accepts. Automaton has  has 25 states, 13 states have (on average 3.923076923076923) internal successors, (51), 21 states have internal predecessors, (51), 16 states have call successors, (39), 1 states have call predecessors, (39), 13 states have return successors, (41), 15 states have call predecessors, (41), 16 states have call successors, (41) Word has length 120
[2025-04-28 21:21:37,524 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:37,529 INFO  L225             Difference]: With dead ends: 113
[2025-04-28 21:21:37,531 INFO  L226             Difference]: Without dead ends: 106
[2025-04-28 21:21:37,532 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 236 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=951, Unknown=0, NotChecked=0, Total=1056
[2025-04-28 21:21:37,533 INFO  L437           NwaCegarLoop]: 97 mSDtfsCounter, 12 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:37,534 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 1832 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-04-28 21:21:37,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2025-04-28 21:21:37,563 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98.
[2025-04-28 21:21:37,563 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 35 states have (on average 1.4857142857142858) internal successors, (52), 46 states have internal predecessors, (52), 41 states have call successors, (41), 14 states have call predecessors, (41), 21 states have return successors, (66), 37 states have call predecessors, (66), 41 states have call successors, (66)
[2025-04-28 21:21:37,566 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 159 transitions.
[2025-04-28 21:21:37,566 INFO  L79                 Accepts]: Start accepts. Automaton has 98 states and 159 transitions. Word has length 120
[2025-04-28 21:21:37,567 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:37,567 INFO  L485      AbstractCegarLoop]: Abstraction has 98 states and 159 transitions.
[2025-04-28 21:21:37,567 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 25 states, 13 states have (on average 3.923076923076923) internal successors, (51), 21 states have internal predecessors, (51), 16 states have call successors, (39), 1 states have call predecessors, (39), 13 states have return successors, (41), 15 states have call predecessors, (41), 16 states have call successors, (41)
[2025-04-28 21:21:37,568 INFO  L278                IsEmpty]: Start isEmpty. Operand 98 states and 159 transitions.
[2025-04-28 21:21:37,571 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2025-04-28 21:21:37,572 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:37,572 INFO  L218           NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:37,580 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-04-28 21:21:37,777 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-04-28 21:21:37,777 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:37,778 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:37,778 INFO  L85        PathProgramCache]: Analyzing trace with hash 597615371, now seen corresponding path program 1 times
[2025-04-28 21:21:37,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:37,778 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951045973]
[2025-04-28 21:21:37,778 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:37,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:37,832 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes.
[2025-04-28 21:21:37,910 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements.
[2025-04-28 21:21:37,911 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:37,911 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:39,082 INFO  L134       CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked.
[2025-04-28 21:21:39,082 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:39,083 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951045973]
[2025-04-28 21:21:39,083 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951045973] provided 0 perfect and 1 imperfect interpolant sequences
[2025-04-28 21:21:39,083 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938438318]
[2025-04-28 21:21:39,083 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:39,083 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-04-28 21:21:39,086 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:39,088 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-04-28 21:21:39,092 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-04-28 21:21:39,336 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes.
[2025-04-28 21:21:39,559 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements.
[2025-04-28 21:21:39,560 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:39,560 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:39,568 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 21 conjuncts are in the unsatisfiable core
[2025-04-28 21:21:39,574 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-04-28 21:21:39,599 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2025-04-28 21:21:39,605 INFO  L354             Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26
[2025-04-28 21:21:40,002 INFO  L134       CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked.
[2025-04-28 21:21:40,003 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-04-28 21:21:41,115 INFO  L354             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2025-04-28 21:21:41,187 INFO  L354             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2025-04-28 21:21:41,483 INFO  L354             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2025-04-28 21:21:41,661 INFO  L134       CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked.
[2025-04-28 21:21:41,662 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [938438318] provided 0 perfect and 2 imperfect interpolant sequences
[2025-04-28 21:21:41,662 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-04-28 21:21:41,662 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26
[2025-04-28 21:21:41,662 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401884489]
[2025-04-28 21:21:41,662 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-04-28 21:21:41,663 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2025-04-28 21:21:41,663 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:41,664 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2025-04-28 21:21:41,665 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650
[2025-04-28 21:21:41,665 INFO  L87              Difference]: Start difference. First operand 98 states and 159 transitions. Second operand  has 26 states, 12 states have (on average 3.75) internal successors, (45), 20 states have internal predecessors, (45), 17 states have call successors, (38), 1 states have call predecessors, (38), 12 states have return successors, (40), 18 states have call predecessors, (40), 17 states have call successors, (40)
[2025-04-28 21:21:42,303 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:42,303 INFO  L93              Difference]: Finished difference Result 117 states and 197 transitions.
[2025-04-28 21:21:42,304 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-04-28 21:21:42,304 INFO  L79                 Accepts]: Start accepts. Automaton has  has 26 states, 12 states have (on average 3.75) internal successors, (45), 20 states have internal predecessors, (45), 17 states have call successors, (38), 1 states have call predecessors, (38), 12 states have return successors, (40), 18 states have call predecessors, (40), 17 states have call successors, (40) Word has length 116
[2025-04-28 21:21:42,305 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:42,307 INFO  L225             Difference]: With dead ends: 117
[2025-04-28 21:21:42,307 INFO  L226             Difference]: Without dead ends: 115
[2025-04-28 21:21:42,308 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=1129, Unknown=0, NotChecked=0, Total=1260
[2025-04-28 21:21:42,309 INFO  L437           NwaCegarLoop]: 115 mSDtfsCounter, 10 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:42,309 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2301 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-04-28 21:21:42,310 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2025-04-28 21:21:42,329 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107.
[2025-04-28 21:21:42,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 107 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 49 states have internal predecessors, (55), 44 states have call successors, (44), 14 states have call predecessors, (44), 24 states have return successors, (79), 43 states have call predecessors, (79), 44 states have call successors, (79)
[2025-04-28 21:21:42,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 178 transitions.
[2025-04-28 21:21:42,332 INFO  L79                 Accepts]: Start accepts. Automaton has 107 states and 178 transitions. Word has length 116
[2025-04-28 21:21:42,333 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:42,333 INFO  L485      AbstractCegarLoop]: Abstraction has 107 states and 178 transitions.
[2025-04-28 21:21:42,333 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 26 states, 12 states have (on average 3.75) internal successors, (45), 20 states have internal predecessors, (45), 17 states have call successors, (38), 1 states have call predecessors, (38), 12 states have return successors, (40), 18 states have call predecessors, (40), 17 states have call successors, (40)
[2025-04-28 21:21:42,333 INFO  L278                IsEmpty]: Start isEmpty. Operand 107 states and 178 transitions.
[2025-04-28 21:21:42,339 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2025-04-28 21:21:42,339 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:42,339 INFO  L218           NwaCegarLoop]: trace histogram [12, 10, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:42,350 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-04-28 21:21:42,540 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-04-28 21:21:42,541 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:42,541 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:42,541 INFO  L85        PathProgramCache]: Analyzing trace with hash -274290918, now seen corresponding path program 1 times
[2025-04-28 21:21:42,541 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:42,541 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260906013]
[2025-04-28 21:21:42,542 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:42,542 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:42,610 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes.
[2025-04-28 21:21:42,717 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements.
[2025-04-28 21:21:42,717 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:42,717 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:44,656 INFO  L134       CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked.
[2025-04-28 21:21:44,656 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:44,656 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260906013]
[2025-04-28 21:21:44,656 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260906013] provided 0 perfect and 1 imperfect interpolant sequences
[2025-04-28 21:21:44,656 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571249401]
[2025-04-28 21:21:44,656 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:44,656 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-04-28 21:21:44,659 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:44,661 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-04-28 21:21:44,663 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-04-28 21:21:44,981 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes.
[2025-04-28 21:21:45,327 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements.
[2025-04-28 21:21:45,328 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:45,328 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:45,338 INFO  L256         TraceCheckSpWp]: Trace formula consists of 2059 conjuncts, 17 conjuncts are in the unsatisfiable core
[2025-04-28 21:21:45,346 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-04-28 21:21:45,374 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2025-04-28 21:21:45,383 INFO  L354             Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26
[2025-04-28 21:21:45,746 INFO  L134       CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked.
[2025-04-28 21:21:45,746 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-04-28 21:21:47,810 INFO  L134       CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked.
[2025-04-28 21:21:47,810 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [571249401] provided 0 perfect and 2 imperfect interpolant sequences
[2025-04-28 21:21:47,810 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-04-28 21:21:47,810 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 10] total 30
[2025-04-28 21:21:47,810 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663454386]
[2025-04-28 21:21:47,811 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-04-28 21:21:47,811 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 30 states
[2025-04-28 21:21:47,812 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:47,812 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants.
[2025-04-28 21:21:47,813 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870
[2025-04-28 21:21:47,813 INFO  L87              Difference]: Start difference. First operand 107 states and 178 transitions. Second operand  has 30 states, 14 states have (on average 4.142857142857143) internal successors, (58), 24 states have internal predecessors, (58), 20 states have call successors, (46), 1 states have call predecessors, (46), 14 states have return successors, (48), 19 states have call predecessors, (48), 20 states have call successors, (48)
[2025-04-28 21:21:49,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:49,215 INFO  L93              Difference]: Finished difference Result 152 states and 290 transitions.
[2025-04-28 21:21:49,216 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2025-04-28 21:21:49,216 INFO  L79                 Accepts]: Start accepts. Automaton has  has 30 states, 14 states have (on average 4.142857142857143) internal successors, (58), 24 states have internal predecessors, (58), 20 states have call successors, (46), 1 states have call predecessors, (46), 14 states have return successors, (48), 19 states have call predecessors, (48), 20 states have call successors, (48) Word has length 168
[2025-04-28 21:21:49,217 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:49,219 INFO  L225             Difference]: With dead ends: 152
[2025-04-28 21:21:49,219 INFO  L226             Difference]: Without dead ends: 137
[2025-04-28 21:21:49,220 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 326 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=172, Invalid=1720, Unknown=0, NotChecked=0, Total=1892
[2025-04-28 21:21:49,221 INFO  L437           NwaCegarLoop]: 108 mSDtfsCounter, 17 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:49,221 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 2251 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-04-28 21:21:49,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 137 states.
[2025-04-28 21:21:49,253 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 117.
[2025-04-28 21:21:49,256 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 117 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 53 states have internal predecessors, (58), 48 states have call successors, (48), 14 states have call predecessors, (48), 27 states have return successors, (101), 49 states have call predecessors, (101), 48 states have call successors, (101)
[2025-04-28 21:21:49,261 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 207 transitions.
[2025-04-28 21:21:49,261 INFO  L79                 Accepts]: Start accepts. Automaton has 117 states and 207 transitions. Word has length 168
[2025-04-28 21:21:49,261 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:49,263 INFO  L485      AbstractCegarLoop]: Abstraction has 117 states and 207 transitions.
[2025-04-28 21:21:49,263 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 30 states, 14 states have (on average 4.142857142857143) internal successors, (58), 24 states have internal predecessors, (58), 20 states have call successors, (46), 1 states have call predecessors, (46), 14 states have return successors, (48), 19 states have call predecessors, (48), 20 states have call successors, (48)
[2025-04-28 21:21:49,263 INFO  L278                IsEmpty]: Start isEmpty. Operand 117 states and 207 transitions.
[2025-04-28 21:21:49,266 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2025-04-28 21:21:49,270 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:49,271 INFO  L218           NwaCegarLoop]: trace histogram [14, 12, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:49,279 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2025-04-28 21:21:49,471 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-04-28 21:21:49,471 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:49,472 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:49,472 INFO  L85        PathProgramCache]: Analyzing trace with hash 530737889, now seen corresponding path program 1 times
[2025-04-28 21:21:49,472 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:49,472 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389556447]
[2025-04-28 21:21:49,472 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:49,473 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:49,529 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes.
[2025-04-28 21:21:49,588 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements.
[2025-04-28 21:21:49,588 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:49,588 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:53,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 399 backedges. 56 proven. 75 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked.
[2025-04-28 21:21:53,012 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:53,012 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389556447]
[2025-04-28 21:21:53,012 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389556447] provided 0 perfect and 1 imperfect interpolant sequences
[2025-04-28 21:21:53,012 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638430480]
[2025-04-28 21:21:53,012 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:53,012 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-04-28 21:21:53,016 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:53,018 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-04-28 21:21:53,022 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2025-04-28 21:21:53,406 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes.
[2025-04-28 21:21:53,719 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements.
[2025-04-28 21:21:53,719 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:53,719 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:53,738 INFO  L256         TraceCheckSpWp]: Trace formula consists of 2153 conjuncts, 21 conjuncts are in the unsatisfiable core
[2025-04-28 21:21:53,745 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-04-28 21:21:53,773 INFO  L189   IndexEqualityManager]: detected not equals via solver
[2025-04-28 21:21:53,778 INFO  L354             Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26
