./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/double_access.sol_2_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:49,973 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:50,010 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c17323d-5b58-4849-af94-178b869f8b16/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:50,013 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:50,013 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:50,026 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:50,027 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:50,027 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:50,027 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:50,027 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:50,028 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:50,028 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:50,028 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:50,028 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:50,028 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:50,028 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:50,028 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:50,028 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:50,028 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:50,029 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:50,029 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:50,029 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:50,029 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:50,029 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:50,029 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:50,029 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:50,029 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:50,216 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:50,221 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:50,223 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:50,224 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:50,224 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:50,225 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c17323d-5b58-4849-af94-178b869f8b16/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/double_access.sol_2_no_adts_000.smt2
[2025-05-07 17:27:50,226 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:50,228 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:50,420 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c17323d-5b58-4849-af94-178b869f8b16/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/double_access.sol_2_no_adts_000.smt2
[2025-05-07 17:27:50,422 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:50,423 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:50,423 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:50,424 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:50,424 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:50,425 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,452 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50 Unit
[2025-05-07 17:27:50,452 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:50,453 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:50,453 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:50,453 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:50,465 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,465 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,485 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,486 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,489 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,490 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,491 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,492 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,493 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,502 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:50,503 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:50,503 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:50,503 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:50,504 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (1/1) ...
[2025-05-07 17:27:50,505 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:50,513 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:50,522 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 17:27:50,524 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 17:27:50,534 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:50,535 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:50,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:50,535 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_6_0 given in one single declaration
[2025-05-07 17:27:50,535 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_6_0
[2025-05-07 17:27:50,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_6_0
[2025-05-07 17:27:50,535 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_42_0 given in one single declaration
[2025-05-07 17:27:50,535 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_42_0
[2025-05-07 17:27:50,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_42_0
[2025-05-07 17:27:50,535 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_42_0 given in one single declaration
[2025-05-07 17:27:50,535 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_42_0
[2025-05-07 17:27:50,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_42_0
[2025-05-07 17:27:50,535 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_12_C_42_0 given in one single declaration
[2025-05-07 17:27:50,536 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_12_C_42_0
[2025-05-07 17:27:50,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_12_C_42_0
[2025-05-07 17:27:50,536 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_14_C_42_0 given in one single declaration
[2025-05-07 17:27:50,536 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_14_C_42_0
[2025-05-07 17:27:50,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_14_C_42_0
[2025-05-07 17:27:50,536 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_13_C_42_0 given in one single declaration
[2025-05-07 17:27:50,536 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_13_C_42_0
[2025-05-07 17:27:50,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_13_C_42_0
[2025-05-07 17:27:50,536 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_15_C_42_0 given in one single declaration
[2025-05-07 17:27:50,536 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_15_C_42_0
[2025-05-07 17:27:50,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_15_C_42_0
[2025-05-07 17:27:50,536 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__41_42_0 given in one single declaration
[2025-05-07 17:27:50,536 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__41_42_0
[2025-05-07 17:27:50,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__41_42_0
[2025-05-07 17:27:50,537 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__41_42_0 given in one single declaration
[2025-05-07 17:27:50,537 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__41_42_0
[2025-05-07 17:27:50,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__41_42_0
[2025-05-07 17:27:50,537 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__41_42_0 given in one single declaration
[2025-05-07 17:27:50,537 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__41_42_0
[2025-05-07 17:27:50,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__41_42_0
[2025-05-07 17:27:50,537 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__41_42_0 given in one single declaration
[2025-05-07 17:27:50,537 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__41_42_0
[2025-05-07 17:27:50,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__41_42_0
[2025-05-07 17:27:50,537 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_40_42_0 given in one single declaration
[2025-05-07 17:27:50,537 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_40_42_0
[2025-05-07 17:27:50,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_40_42_0
[2025-05-07 17:27:50,537 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__41_42_0 given in one single declaration
[2025-05-07 17:27:50,537 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__41_42_0
[2025-05-07 17:27:50,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__41_42_0
[2025-05-07 17:27:50,538 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__41_42_0 given in one single declaration
[2025-05-07 17:27:50,538 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__41_42_0
[2025-05-07 17:27:50,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__41_42_0
[2025-05-07 17:27:50,538 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__41_42_0 given in one single declaration
[2025-05-07 17:27:50,538 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__41_42_0
[2025-05-07 17:27:50,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__41_42_0
[2025-05-07 17:27:50,538 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__41_42_0 given in one single declaration
[2025-05-07 17:27:50,538 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__41_42_0
[2025-05-07 17:27:50,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__41_42_0
[2025-05-07 17:27:50,538 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:50,538 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:50,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:50,655 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:50,657 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:50,851 INFO  L?                        ?]: Removed 153 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:50,851 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:50,859 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:50,859 INFO  L312             CfgBuilder]: Removed 9 assume(true) statements.
[2025-05-07 17:27:50,859 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:50 BoogieIcfgContainer
[2025-05-07 17:27:50,859 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:50,861 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:50,861 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:50,863 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:50,864 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:50" (1/3) ...
[2025-05-07 17:27:50,864 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e43085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:50, skipping insertion in model container
[2025-05-07 17:27:50,864 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:50" (2/3) ...
[2025-05-07 17:27:50,864 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e43085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:50, skipping insertion in model container
[2025-05-07 17:27:50,864 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:50" (3/3) ...
[2025-05-07 17:27:50,865 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:50,875 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:50,877 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 17:27:50,906 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:50,914 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;@6170410b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:50,914 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:50,917 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 17:27:50,923 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:50,923 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:50,924 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 17:27:50,924 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:50,927 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:50,928 INFO  L85        PathProgramCache]: Analyzing trace with hash 755562145, now seen corresponding path program 1 times
[2025-05-07 17:27:50,932 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:50,933 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810185798]
[2025-05-07 17:27:50,933 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:50,933 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:50,984 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:51,008 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:51,008 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:51,008 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:51,083 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 17:27:51,084 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:51,084 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810185798]
[2025-05-07 17:27:51,084 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810185798] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:51,084 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:51,086 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:27:51,088 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612687256]
[2025-05-07 17:27:51,088 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:51,091 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:27:51,091 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:51,108 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:27:51,108 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:27:51,110 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 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 17:27:51,124 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:51,125 INFO  L93              Difference]: Finished difference Result 62 states and 69 transitions.
[2025-05-07 17:27:51,125 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:27:51,126 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 17:27:51,126 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:51,130 INFO  L225             Difference]: With dead ends: 62
[2025-05-07 17:27:51,130 INFO  L226             Difference]: Without dead ends: 60
[2025-05-07 17:27:51,131 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 17:27:51,133 INFO  L437           NwaCegarLoop]: 69 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, 69 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 17:27:51,134 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:51,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2025-05-07 17:27:51,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2025-05-07 17:27:51,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 25 states have (on average 1.08) internal successors, (27), 27 states have internal predecessors, (27), 19 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20)
[2025-05-07 17:27:51,173 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions.
[2025-05-07 17:27:51,174 INFO  L79                 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 51
[2025-05-07 17:27:51,175 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:51,175 INFO  L485      AbstractCegarLoop]: Abstraction has 60 states and 67 transitions.
[2025-05-07 17:27:51,175 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 17:27:51,175 INFO  L278                IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions.
[2025-05-07 17:27:51,176 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:51,176 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:51,177 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 17:27:51,177 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:51,177 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:51,178 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:51,178 INFO  L85        PathProgramCache]: Analyzing trace with hash -764610465, now seen corresponding path program 1 times
[2025-05-07 17:27:51,178 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:51,178 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677531284]
[2025-05-07 17:27:51,178 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:51,178 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:51,213 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:51,254 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:51,254 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:51,254 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:51,404 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 17:27:51,404 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:51,404 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677531284]
[2025-05-07 17:27:51,404 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677531284] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:51,405 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:51,405 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:51,405 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691096992]
[2025-05-07 17:27:51,405 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:51,406 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:51,406 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:51,407 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:51,407 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:51,407 INFO  L87              Difference]: Start difference. First operand 60 states and 67 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:51,449 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:51,449 INFO  L93              Difference]: Finished difference Result 65 states and 73 transitions.
[2025-05-07 17:27:51,449 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:51,450 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), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:27:51,450 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:51,450 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:27:51,450 INFO  L226             Difference]: Without dead ends: 65
[2025-05-07 17:27:51,451 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 17:27:51,451 INFO  L437           NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 310 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 17:27:51,451 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 310 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:51,452 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2025-05-07 17:27:51,456 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2025-05-07 17:27:51,457 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 65 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 29 states have internal predecessors, (29), 20 states have call successors, (21), 15 states have call predecessors, (21), 17 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23)
[2025-05-07 17:27:51,458 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions.
[2025-05-07 17:27:51,458 INFO  L79                 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 51
[2025-05-07 17:27:51,458 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:51,458 INFO  L485      AbstractCegarLoop]: Abstraction has 65 states and 73 transitions.
[2025-05-07 17:27:51,458 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), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:51,458 INFO  L278                IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions.
[2025-05-07 17:27:51,459 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:51,459 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:51,459 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 17:27:51,459 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:51,460 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:51,460 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:51,460 INFO  L85        PathProgramCache]: Analyzing trace with hash 1439837247, now seen corresponding path program 1 times
[2025-05-07 17:27:51,460 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:51,460 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449019795]
[2025-05-07 17:27:51,460 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:51,460 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:51,484 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:51,498 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:51,498 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:51,499 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:51,651 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 17:27:51,652 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:51,652 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449019795]
[2025-05-07 17:27:51,652 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449019795] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:51,652 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:51,652 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:51,652 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328738887]
[2025-05-07 17:27:51,652 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:51,652 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:51,652 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:51,653 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:51,653 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:51,653 INFO  L87              Difference]: Start difference. First operand 65 states and 73 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)
[2025-05-07 17:27:51,718 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:51,719 INFO  L93              Difference]: Finished difference Result 33 states and 34 transitions.
[2025-05-07 17:27:51,719 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:51,719 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), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 51
[2025-05-07 17:27:51,719 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:51,720 INFO  L225             Difference]: With dead ends: 33
[2025-05-07 17:27:51,720 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:51,720 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 17:27:51,720 INFO  L437           NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:51,721 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 174 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:51,721 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:51,721 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:51,721 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 17:27:51,721 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:51,721 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:27:51,721 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:51,721 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:51,722 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), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)
[2025-05-07 17:27:51,722 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:51,722 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:51,723 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:51,724 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:51,726 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:27:51,728 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:51,730 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:51 BoogieIcfgContainer
[2025-05-07 17:27:51,730 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:51,730 INFO  L158              Benchmark]: Toolchain (without parser) took 1307.65ms. Allocated memory is still 234.9MB. Free memory was 152.1MB in the beginning and 100.0MB in the end (delta: 52.0MB). Peak memory consumption was 59.3MB. Max. memory is 33.6GB.
[2025-05-07 17:27:51,731 INFO  L158              Benchmark]: SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 172.3MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:51,731 INFO  L158              Benchmark]: ChcToBoogie took 29.18ms. Allocated memory is still 234.9MB. Free memory was 152.1MB in the beginning and 149.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:51,731 INFO  L158              Benchmark]: Boogie Preprocessor took 49.41ms. Allocated memory is still 234.9MB. Free memory was 149.5MB in the beginning and 146.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:51,731 INFO  L158              Benchmark]: RCFGBuilder took 356.60ms. Allocated memory is still 234.9MB. Free memory was 146.5MB in the beginning and 190.4MB in the end (delta: -43.9MB). Peak memory consumption was 43.3MB. Max. memory is 33.6GB.
[2025-05-07 17:27:51,731 INFO  L158              Benchmark]: TraceAbstraction took 869.28ms. Allocated memory is still 234.9MB. Free memory was 189.5MB in the beginning and 100.0MB in the end (delta: 89.5MB). Peak memory consumption was 83.2MB. Max. memory is 33.6GB.
[2025-05-07 17:27:51,732 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 172.3MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 29.18ms. Allocated memory is still 234.9MB. Free memory was 152.1MB in the beginning and 149.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 49.41ms. Allocated memory is still 234.9MB. Free memory was 149.5MB in the beginning and 146.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 356.60ms. Allocated memory is still 234.9MB. Free memory was 146.5MB in the beginning and 190.4MB in the end (delta: -43.9MB). Peak memory consumption was 43.3MB. Max. memory is 33.6GB.
 * TraceAbstraction took 869.28ms. Allocated memory is still 234.9MB. Free memory was 189.5MB in the beginning and 100.0MB in the end (delta: 89.5MB). Peak memory consumption was 83.2MB. 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 18 procedures, 70 locations, 105 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 553 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 393 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 160 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 0 StatesRemovedByMinimization, 0 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, 192 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 17:27:51,742 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
