./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/bytes_2.sol_1_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:29,737 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:29,774 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026ca7b2-0707-4419-82db-746048646c94/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:29,777 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:29,777 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:29,791 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:29,791 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:29,791 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:29,791 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:29,791 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:29,792 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:29,792 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:29,792 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:29,792 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:29,792 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:29,793 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:29,793 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:29,976 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:29,984 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:29,986 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:29,987 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:29,988 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:29,989 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026ca7b2-0707-4419-82db-746048646c94/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/bytes_2.sol_1_no_adts_000.smt2
[2025-05-07 17:26:29,990 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:29,993 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:30,203 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026ca7b2-0707-4419-82db-746048646c94/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/bytes_2.sol_1_no_adts_000.smt2
[2025-05-07 17:26:30,205 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:30,206 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:30,207 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:30,207 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:30,207 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:30,209 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,244 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30 Unit
[2025-05-07 17:26:30,244 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:30,245 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:30,245 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:30,245 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:30,256 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,256 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,276 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,276 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,280 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,281 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,282 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,284 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,285 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,295 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:30,296 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:30,296 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:30,296 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:30,296 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,298 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:30,307 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:30,316 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 17:26:30,318 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 17:26:30,326 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:30,327 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:30,327 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:30,327 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_6_0 given in one single declaration
[2025-05-07 17:26:30,327 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_6_0
[2025-05-07 17:26:30,327 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_6_0
[2025-05-07 17:26:30,327 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__36_37_0 given in one single declaration
[2025-05-07 17:26:30,327 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__36_37_0
[2025-05-07 17:26:30,327 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__36_37_0
[2025-05-07 17:26:30,327 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__36_37_0 given in one single declaration
[2025-05-07 17:26:30,327 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__36_37_0
[2025-05-07 17:26:30,327 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__36_37_0
[2025-05-07 17:26:30,328 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__36_37_0 given in one single declaration
[2025-05-07 17:26:30,328 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__36_37_0
[2025-05-07 17:26:30,328 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__36_37_0
[2025-05-07 17:26:30,328 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__36_37_0 given in one single declaration
[2025-05-07 17:26:30,328 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__36_37_0
[2025-05-07 17:26:30,328 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__36_37_0
[2025-05-07 17:26:30,328 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_35_37_0 given in one single declaration
[2025-05-07 17:26:30,328 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_35_37_0
[2025-05-07 17:26:30,328 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_35_37_0
[2025-05-07 17:26:30,328 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__36_37_0 given in one single declaration
[2025-05-07 17:26:30,328 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__36_37_0
[2025-05-07 17:26:30,328 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__36_37_0
[2025-05-07 17:26:30,328 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__36_37_0 given in one single declaration
[2025-05-07 17:26:30,328 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__36_37_0
[2025-05-07 17:26:30,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__36_37_0
[2025-05-07 17:26:30,329 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__36_37_0 given in one single declaration
[2025-05-07 17:26:30,329 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__36_37_0
[2025-05-07 17:26:30,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__36_37_0
[2025-05-07 17:26:30,329 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__36_37_0 given in one single declaration
[2025-05-07 17:26:30,329 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__36_37_0
[2025-05-07 17:26:30,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__36_37_0
[2025-05-07 17:26:30,329 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_37_0 given in one single declaration
[2025-05-07 17:26:30,329 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_37_0
[2025-05-07 17:26:30,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_37_0
[2025-05-07 17:26:30,329 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_37_0 given in one single declaration
[2025-05-07 17:26:30,329 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_37_0
[2025-05-07 17:26:30,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_37_0
[2025-05-07 17:26:30,330 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_12_C_37_0 given in one single declaration
[2025-05-07 17:26:30,330 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_12_C_37_0
[2025-05-07 17:26:30,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_12_C_37_0
[2025-05-07 17:26:30,330 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_14_C_37_0 given in one single declaration
[2025-05-07 17:26:30,330 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_14_C_37_0
[2025-05-07 17:26:30,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_14_C_37_0
[2025-05-07 17:26:30,330 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_13_C_37_0 given in one single declaration
[2025-05-07 17:26:30,330 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_13_C_37_0
[2025-05-07 17:26:30,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_13_C_37_0
[2025-05-07 17:26:30,330 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_15_C_37_0 given in one single declaration
[2025-05-07 17:26:30,330 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_15_C_37_0
[2025-05-07 17:26:30,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_15_C_37_0
[2025-05-07 17:26:30,331 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:30,331 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:30,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:30,449 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:30,452 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:30,649 INFO  L?                        ?]: Removed 183 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:30,650 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:30,657 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:30,657 INFO  L312             CfgBuilder]: Removed 9 assume(true) statements.
[2025-05-07 17:26:30,658 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:30 BoogieIcfgContainer
[2025-05-07 17:26:30,658 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:30,659 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:30,659 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:30,662 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:30,662 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:30" (1/3) ...
[2025-05-07 17:26:30,662 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7effd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:30, skipping insertion in model container
[2025-05-07 17:26:30,663 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (2/3) ...
[2025-05-07 17:26:30,663 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7effd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:30, skipping insertion in model container
[2025-05-07 17:26:30,663 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:30" (3/3) ...
[2025-05-07 17:26:30,664 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:30,674 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:30,675 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 18 procedures, 70 locations, 105 edges, 18 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:30,703 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:30,711 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;@54c162d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:30,711 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:30,714 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 70 states, 30 states have (on average 1.1) internal successors, (33), 33 states have internal predecessors, (33), 21 states have call successors, (24), 17 states have call predecessors, (24), 17 states have return successors, (24), 19 states have call predecessors, (24), 21 states have call successors, (24)
[2025-05-07 17:26:30,720 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:30,720 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:30,720 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 17:26:30,721 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:30,724 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:30,724 INFO  L85        PathProgramCache]: Analyzing trace with hash 285170722, now seen corresponding path program 1 times
[2025-05-07 17:26:30,729 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:30,730 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031473709]
[2025-05-07 17:26:30,730 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:30,730 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:30,772 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:30,790 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:30,790 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:30,790 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:30,985 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 17:26:30,986 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:30,986 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031473709]
[2025-05-07 17:26:30,986 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031473709] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:30,986 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:30,988 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:30,989 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797038579]
[2025-05-07 17:26:30,989 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:30,992 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:30,992 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:31,009 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:31,009 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:31,010 INFO  L87              Difference]: Start difference. First operand  has 70 states, 30 states have (on average 1.1) internal successors, (33), 33 states have internal predecessors, (33), 21 states have call successors, (24), 17 states have call predecessors, (24), 17 states have return successors, (24), 19 states have call predecessors, (24), 21 states have call successors, (24) Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:31,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:31,054 INFO  L93              Difference]: Finished difference Result 66 states and 73 transitions.
[2025-05-07 17:26:31,055 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:31,056 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), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:26:31,057 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:31,063 INFO  L225             Difference]: With dead ends: 66
[2025-05-07 17:26:31,063 INFO  L226             Difference]: Without dead ends: 60
[2025-05-07 17:26:31,065 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 17:26:31,068 INFO  L437           NwaCegarLoop]: 69 mSDtfsCounter, 1 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 200 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 17:26:31,069 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 200 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:31,087 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2025-05-07 17:26:31,107 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58.
[2025-05-07 17:26:31,108 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 17 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 16 states have call predecessors, (18), 17 states have call successors, (18)
[2025-05-07 17:26:31,111 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions.
[2025-05-07 17:26:31,112 INFO  L79                 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 51
[2025-05-07 17:26:31,112 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:31,112 INFO  L485      AbstractCegarLoop]: Abstraction has 58 states and 62 transitions.
[2025-05-07 17:26:31,112 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), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:31,112 INFO  L278                IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions.
[2025-05-07 17:26:31,113 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:31,114 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:31,114 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 17:26:31,114 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:31,114 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:31,115 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:31,115 INFO  L85        PathProgramCache]: Analyzing trace with hash -770879054, now seen corresponding path program 1 times
[2025-05-07 17:26:31,115 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:31,115 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159456862]
[2025-05-07 17:26:31,115 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:31,115 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:31,152 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:31,191 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:31,191 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:31,191 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:31,353 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 17:26:31,354 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:31,354 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159456862]
[2025-05-07 17:26:31,354 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159456862] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:31,354 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:31,354 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:31,354 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633172970]
[2025-05-07 17:26:31,354 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:31,355 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:31,355 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:31,356 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:31,356 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:31,356 INFO  L87              Difference]: Start difference. First operand 58 states and 62 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:31,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:31,395 INFO  L93              Difference]: Finished difference Result 63 states and 68 transitions.
[2025-05-07 17:26:31,395 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:31,395 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:26:31,396 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:31,396 INFO  L225             Difference]: With dead ends: 63
[2025-05-07 17:26:31,397 INFO  L226             Difference]: Without dead ends: 63
[2025-05-07 17:26:31,397 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:31,397 INFO  L437           NwaCegarLoop]: 59 mSDtfsCounter, 1 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:31,398 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 285 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:31,398 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2025-05-07 17:26:31,403 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63.
[2025-05-07 17:26:31,403 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 18 states have call successors, (19), 15 states have call predecessors, (19), 17 states have return successors, (21), 19 states have call predecessors, (21), 18 states have call successors, (21)
[2025-05-07 17:26:31,404 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions.
[2025-05-07 17:26:31,404 INFO  L79                 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 51
[2025-05-07 17:26:31,405 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:31,405 INFO  L485      AbstractCegarLoop]: Abstraction has 63 states and 68 transitions.
[2025-05-07 17:26:31,405 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:31,405 INFO  L278                IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions.
[2025-05-07 17:26:31,406 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:31,407 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:31,407 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 17:26:31,407 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:31,407 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:31,407 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:31,407 INFO  L85        PathProgramCache]: Analyzing trace with hash -692189310, now seen corresponding path program 1 times
[2025-05-07 17:26:31,407 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:31,408 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068035485]
[2025-05-07 17:26:31,408 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:31,408 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:31,430 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:31,447 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:31,447 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:31,447 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:31,638 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 17:26:31,639 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:31,639 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068035485]
[2025-05-07 17:26:31,639 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068035485] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:31,639 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:31,639 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:26:31,639 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073631306]
[2025-05-07 17:26:31,639 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:31,639 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:26:31,639 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:31,640 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:26:31,640 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:31,640 INFO  L87              Difference]: Start difference. First operand 63 states and 68 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), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:26:31,704 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:31,704 INFO  L93              Difference]: Finished difference Result 57 states and 62 transitions.
[2025-05-07 17:26:31,705 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:26:31,705 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), 7 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:26:31,705 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:31,705 INFO  L225             Difference]: With dead ends: 57
[2025-05-07 17:26:31,705 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:31,706 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:31,706 INFO  L437           NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:31,707 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:31,707 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:31,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:31,707 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 17:26:31,708 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:31,708 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:26:31,708 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:31,708 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:31,708 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), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:26:31,708 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:31,708 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:31,710 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:31,711 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:31,714 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:26:31,716 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:31,719 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:31 BoogieIcfgContainer
[2025-05-07 17:26:31,719 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:31,720 INFO  L158              Benchmark]: Toolchain (without parser) took 1513.39ms. Allocated memory is still 234.9MB. Free memory was 151.8MB in the beginning and 88.9MB in the end (delta: 62.8MB). Peak memory consumption was 58.1MB. Max. memory is 33.6GB.
[2025-05-07 17:26:31,720 INFO  L158              Benchmark]: SmtParser took 0.25ms. Allocated memory is still 234.9MB. Free memory is still 173.3MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:31,720 INFO  L158              Benchmark]: ChcToBoogie took 37.56ms. Allocated memory is still 234.9MB. Free memory was 151.7MB in the beginning and 148.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:31,720 INFO  L158              Benchmark]: Boogie Preprocessor took 50.20ms. Allocated memory is still 234.9MB. Free memory was 148.9MB in the beginning and 145.8MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:31,721 INFO  L158              Benchmark]: RCFGBuilder took 362.29ms. Allocated memory is still 234.9MB. Free memory was 145.0MB in the beginning and 188.4MB in the end (delta: -43.3MB). Peak memory consumption was 25.3MB. Max. memory is 33.6GB.
[2025-05-07 17:26:31,721 INFO  L158              Benchmark]: TraceAbstraction took 1059.85ms. Allocated memory is still 234.9MB. Free memory was 187.5MB in the beginning and 88.9MB in the end (delta: 98.6MB). Peak memory consumption was 99.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:31,722 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.25ms. Allocated memory is still 234.9MB. Free memory is still 173.3MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 37.56ms. Allocated memory is still 234.9MB. Free memory was 151.7MB in the beginning and 148.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 50.20ms. Allocated memory is still 234.9MB. Free memory was 148.9MB in the beginning and 145.8MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 362.29ms. Allocated memory is still 234.9MB. Free memory was 145.0MB in the beginning and 188.4MB in the end (delta: -43.3MB). Peak memory consumption was 25.3MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1059.85ms. Allocated memory is still 234.9MB. Free memory was 187.5MB in the beginning and 88.9MB in the end (delta: 98.6MB). Peak memory consumption was 99.8MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 18 procedures, 70 locations, 105 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 801 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 618 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 183 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 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 17:26:31,734 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
