./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/fixed_bytes_access_2.sol_1_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:28:35,891 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:28:35,942 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7ac38-e4d0-4f12-a021-2e664486d818/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:28:35,946 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:28:35,946 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:28:35,963 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:28:35,964 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:28:35,964 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:28:35,964 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:28:35,964 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:28:35,965 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:28:35,965 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:28:35,965 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:28:35,965 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:28:35,965 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:28:35,965 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:28:35,965 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:28:35,965 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:28:35,965 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:35,965 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:28:35,966 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:28:35,966 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:28:35,966 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:28:35,966 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:28:35,966 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:28:35,966 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:28:35,967 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:28:36,171 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:28:36,177 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:28:36,178 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:28:36,179 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:28:36,179 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:28:36,180 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7ac38-e4d0-4f12-a021-2e664486d818/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/fixed_bytes_access_2.sol_1_no_adts_000.smt2
[2025-05-07 17:28:36,181 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:28:36,183 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:28:36,354 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee7ac38-e4d0-4f12-a021-2e664486d818/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/fixed_bytes_access_2.sol_1_no_adts_000.smt2
[2025-05-07 17:28:36,356 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:28:36,357 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:28:36,358 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:28:36,358 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:28:36,358 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:28:36,359 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,384 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36 Unit
[2025-05-07 17:28:36,385 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:28:36,385 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:28:36,385 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:28:36,385 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:28:36,396 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,397 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,416 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,416 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,419 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,420 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,421 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,422 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,423 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,432 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:28:36,432 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:28:36,432 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:28:36,432 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:28:36,433 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (1/1) ...
[2025-05-07 17:28:36,435 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:36,442 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:28:36,450 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)
[2025-05-07 17:28:36,452 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:28:36,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:28:36,460 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:28:36,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:28:36,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_5_0 given in one single declaration
[2025-05-07 17:28:36,460 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_5_0
[2025-05-07 17:28:36,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_5_0
[2025-05-07 17:28:36,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_22_0 given in one single declaration
[2025-05-07 17:28:36,460 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_22_0
[2025-05-07 17:28:36,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_22_0
[2025-05-07 17:28:36,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_22_0 given in one single declaration
[2025-05-07 17:28:36,460 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_22_0
[2025-05-07 17:28:36,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_22_0
[2025-05-07 17:28:36,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_14_C_22_0 given in one single declaration
[2025-05-07 17:28:36,460 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_14_C_22_0
[2025-05-07 17:28:36,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_14_C_22_0
[2025-05-07 17:28:36,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_11_C_22_0 given in one single declaration
[2025-05-07 17:28:36,461 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_11_C_22_0
[2025-05-07 17:28:36,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_11_C_22_0
[2025-05-07 17:28:36,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_13_C_22_0 given in one single declaration
[2025-05-07 17:28:36,461 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_13_C_22_0
[2025-05-07 17:28:36,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_13_C_22_0
[2025-05-07 17:28:36,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_12_C_22_0 given in one single declaration
[2025-05-07 17:28:36,461 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_12_C_22_0
[2025-05-07 17:28:36,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_12_C_22_0
[2025-05-07 17:28:36,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__21_22_0 given in one single declaration
[2025-05-07 17:28:36,461 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__21_22_0
[2025-05-07 17:28:36,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__21_22_0
[2025-05-07 17:28:36,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__21_22_0 given in one single declaration
[2025-05-07 17:28:36,461 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__21_22_0
[2025-05-07 17:28:36,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__21_22_0
[2025-05-07 17:28:36,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__21_22_0 given in one single declaration
[2025-05-07 17:28:36,461 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__21_22_0
[2025-05-07 17:28:36,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__21_22_0
[2025-05-07 17:28:36,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_20_22_0 given in one single declaration
[2025-05-07 17:28:36,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_20_22_0
[2025-05-07 17:28:36,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_20_22_0
[2025-05-07 17:28:36,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__21_22_0 given in one single declaration
[2025-05-07 17:28:36,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__21_22_0
[2025-05-07 17:28:36,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__21_22_0
[2025-05-07 17:28:36,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__21_22_0 given in one single declaration
[2025-05-07 17:28:36,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__21_22_0
[2025-05-07 17:28:36,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__21_22_0
[2025-05-07 17:28:36,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__21_22_0 given in one single declaration
[2025-05-07 17:28:36,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__21_22_0
[2025-05-07 17:28:36,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__21_22_0
[2025-05-07 17:28:36,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__21_22_0 given in one single declaration
[2025-05-07 17:28:36,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__21_22_0
[2025-05-07 17:28:36,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__21_22_0
[2025-05-07 17:28:36,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:28:36,462 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:28:36,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:28:36,565 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:28:36,567 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:28:36,715 INFO  L?                        ?]: Removed 129 outVars from TransFormulas that were not future-live.
[2025-05-07 17:28:36,715 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:28:36,724 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:28:36,724 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:28:36,724 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:36 BoogieIcfgContainer
[2025-05-07 17:28:36,724 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:28:36,726 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:28:36,726 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:28:36,729 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:28:36,729 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:36" (1/3) ...
[2025-05-07 17:28:36,729 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbf7073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:28:36, skipping insertion in model container
[2025-05-07 17:28:36,730 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:36" (2/3) ...
[2025-05-07 17:28:36,730 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbf7073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:28:36, skipping insertion in model container
[2025-05-07 17:28:36,730 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:36" (3/3) ...
[2025-05-07 17:28:36,731 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:28:36,741 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:28:36,743 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 17 procedures, 66 locations, 97 edges, 17 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:28:36,771 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:28:36,779 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;@4c5f59d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:28:36,779 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:28:36,782 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22)
[2025-05-07 17:28:36,799 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:28:36,799 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:36,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:36,800 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:36,804 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:36,804 INFO  L85        PathProgramCache]: Analyzing trace with hash 1760965815, now seen corresponding path program 1 times
[2025-05-07 17:28:36,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:36,809 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488785011]
[2025-05-07 17:28:36,809 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:36,810 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:36,858 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:28:36,883 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:28:36,883 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:36,883 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:36,963 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:36,963 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:36,963 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488785011]
[2025-05-07 17:28:36,963 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488785011] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:36,964 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:36,965 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:28:36,966 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881843045]
[2025-05-07 17:28:36,967 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:36,969 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:28:36,970 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:36,986 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:28:36,986 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:28:36,988 INFO  L87              Difference]: Start difference. First operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:28:37,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:37,003 INFO  L93              Difference]: Finished difference Result 58 states and 63 transitions.
[2025-05-07 17:28:37,003 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:28:37,004 INFO  L79                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 51
[2025-05-07 17:28:37,004 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:37,009 INFO  L225             Difference]: With dead ends: 58
[2025-05-07 17:28:37,009 INFO  L226             Difference]: Without dead ends: 56
[2025-05-07 17:28:37,010 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:28:37,013 INFO  L437           NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:37,014 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:37,035 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2025-05-07 17:28:37,056 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2025-05-07 17:28:37,057 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 25 states have internal predecessors, (25), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18)
[2025-05-07 17:28:37,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions.
[2025-05-07 17:28:37,063 INFO  L79                 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 51
[2025-05-07 17:28:37,063 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:37,063 INFO  L485      AbstractCegarLoop]: Abstraction has 56 states and 61 transitions.
[2025-05-07 17:28:37,063 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:28:37,063 INFO  L278                IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions.
[2025-05-07 17:28:37,065 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:28:37,065 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:37,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:37,066 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:28:37,066 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:37,067 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:37,067 INFO  L85        PathProgramCache]: Analyzing trace with hash -805028427, now seen corresponding path program 1 times
[2025-05-07 17:28:37,067 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:37,067 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337182784]
[2025-05-07 17:28:37,067 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:37,067 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:37,104 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:28:37,134 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:28:37,135 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:37,135 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:37,282 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:37,282 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:37,282 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337182784]
[2025-05-07 17:28:37,283 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337182784] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:37,283 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:37,283 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:37,283 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975842776]
[2025-05-07 17:28:37,283 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:37,284 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:37,284 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:37,285 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:37,285 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:37,285 INFO  L87              Difference]: Start difference. First operand 56 states and 61 transitions. Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:28:37,297 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:37,297 INFO  L93              Difference]: Finished difference Result 60 states and 65 transitions.
[2025-05-07 17:28:37,298 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:37,298 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 51
[2025-05-07 17:28:37,298 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:37,300 INFO  L225             Difference]: With dead ends: 60
[2025-05-07 17:28:37,300 INFO  L226             Difference]: Without dead ends: 56
[2025-05-07 17:28:37,300 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
[2025-05-07 17:28:37,301 INFO  L437           NwaCegarLoop]: 62 mSDtfsCounter, 1 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:37,301 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 178 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:37,301 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2025-05-07 17:28:37,305 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54.
[2025-05-07 17:28:37,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 24 states have internal predecessors, (24), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16)
[2025-05-07 17:28:37,306 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions.
[2025-05-07 17:28:37,306 INFO  L79                 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 51
[2025-05-07 17:28:37,307 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:37,307 INFO  L485      AbstractCegarLoop]: Abstraction has 54 states and 56 transitions.
[2025-05-07 17:28:37,307 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:28:37,307 INFO  L278                IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions.
[2025-05-07 17:28:37,308 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:28:37,308 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:37,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:37,308 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:37,308 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:37,308 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:37,309 INFO  L85        PathProgramCache]: Analyzing trace with hash -75898063, now seen corresponding path program 1 times
[2025-05-07 17:28:37,309 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:37,309 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288169208]
[2025-05-07 17:28:37,309 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:37,309 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:37,338 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:28:37,353 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:28:37,353 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:37,353 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:37,497 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:37,497 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:37,497 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288169208]
[2025-05-07 17:28:37,497 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288169208] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:37,497 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:37,498 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:28:37,498 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735645005]
[2025-05-07 17:28:37,498 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:37,498 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:28:37,498 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:37,499 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:28:37,499 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:37,499 INFO  L87              Difference]: Start difference. First operand 54 states and 56 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:28:37,555 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:37,555 INFO  L93              Difference]: Finished difference Result 24 states and 23 transitions.
[2025-05-07 17:28:37,556 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:28:37,556 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:28:37,556 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:37,556 INFO  L225             Difference]: With dead ends: 24
[2025-05-07 17:28:37,556 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:37,556 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:28:37,557 INFO  L437           NwaCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:37,557 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 125 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:37,557 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:37,558 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:37,558 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)
[2025-05-07 17:28:37,558 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:37,558 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:28:37,558 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:37,558 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:37,558 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:28:37,558 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:37,558 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:37,560 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:37,560 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:37,563 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:28:37,564 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:37,567 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:37 BoogieIcfgContainer
[2025-05-07 17:28:37,567 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:37,567 INFO  L158              Benchmark]: Toolchain (without parser) took 1210.55ms. Allocated memory is still 234.9MB. Free memory was 154.9MB in the beginning and 110.3MB in the end (delta: 44.5MB). Peak memory consumption was 75.8MB. Max. memory is 33.6GB.
[2025-05-07 17:28:37,568 INFO  L158              Benchmark]: SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:37,568 INFO  L158              Benchmark]: ChcToBoogie took 27.35ms. Allocated memory is still 234.9MB. Free memory was 154.9MB in the beginning and 152.6MB in the end (delta: 2.3MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:28:37,568 INFO  L158              Benchmark]: Boogie Preprocessor took 46.46ms. Allocated memory is still 234.9MB. Free memory was 152.6MB in the beginning and 149.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:37,568 INFO  L158              Benchmark]: RCFGBuilder took 292.39ms. Allocated memory is still 234.9MB. Free memory was 149.6MB in the beginning and 125.6MB in the end (delta: 24.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:28:37,568 INFO  L158              Benchmark]: TraceAbstraction took 840.77ms. Allocated memory is still 234.9MB. Free memory was 124.9MB in the beginning and 110.3MB in the end (delta: 14.6MB). Peak memory consumption was 42.2MB. Max. memory is 33.6GB.
[2025-05-07 17:28:37,569 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 27.35ms. Allocated memory is still 234.9MB. Free memory was 154.9MB in the beginning and 152.6MB in the end (delta: 2.3MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 46.46ms. Allocated memory is still 234.9MB. Free memory was 152.6MB in the beginning and 149.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 292.39ms. Allocated memory is still 234.9MB. Free memory was 149.6MB in the beginning and 125.6MB in the end (delta: 24.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 840.77ms. Allocated memory is still 234.9MB. Free memory was 124.9MB in the beginning and 110.3MB in the end (delta: 14.6MB). Peak memory consumption was 42.2MB. 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 17 procedures, 66 locations, 97 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 366 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 221 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 145 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 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!
[2025-05-07 17:28:37,579 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
