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


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:31,555 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:31,593 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67622834-9457-4c95-90f0-85e744a8918f/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:31,596 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:31,596 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:31,610 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:31,610 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:31,610 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:31,611 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:31,611 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:31,611 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:31,611 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:31,611 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:31,611 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:31,611 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:31,612 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:31,612 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:31,612 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:31,612 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:31,612 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:31,612 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:31,612 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:31,612 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:31,613 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:31,613 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:31,613 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:31,613 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:31,807 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:31,815 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:31,817 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:31,817 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:31,818 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:31,818 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67622834-9457-4c95-90f0-85e744a8918f/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/tuple_assignment_empty.sol_1_no_adts_000.smt2
[2025-05-07 17:27:31,819 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:31,821 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:32,029 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67622834-9457-4c95-90f0-85e744a8918f/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/tuple_assignment_empty.sol_1_no_adts_000.smt2
[2025-05-07 17:27:32,031 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:32,032 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:32,033 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:32,033 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:32,033 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:32,036 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,067 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32 Unit
[2025-05-07 17:27:32,067 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:32,068 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:32,068 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:32,068 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:32,078 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,078 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,102 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,102 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,106 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,107 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,109 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,111 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,113 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,121 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:32,122 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:32,122 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:32,122 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:32,123 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,124 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:32,132 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:32,141 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 17:27:32,143 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 17:27:32,150 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:32,151 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:32,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:32,151 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_4_0 given in one single declaration
[2025-05-07 17:27:32,151 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_4_0
[2025-05-07 17:27:32,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_4_0
[2025-05-07 17:27:32,151 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_g__29_30_0 given in one single declaration
[2025-05-07 17:27:32,151 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_g__29_30_0
[2025-05-07 17:27:32,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_g__29_30_0
[2025-05-07 17:27:32,151 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_g__29_30_0 given in one single declaration
[2025-05-07 17:27:32,151 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_g__29_30_0
[2025-05-07 17:27:32,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_g__29_30_0
[2025-05-07 17:27:32,151 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_g__29_30_0 given in one single declaration
[2025-05-07 17:27:32,151 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_g__29_30_0
[2025-05-07 17:27:32,151 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_g__29_30_0
[2025-05-07 17:27:32,151 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_g_28_30_0 given in one single declaration
[2025-05-07 17:27:32,151 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_g_28_30_0
[2025-05-07 17:27:32,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_g_28_30_0
[2025-05-07 17:27:32,152 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_g__29_30_0 given in one single declaration
[2025-05-07 17:27:32,152 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_g__29_30_0
[2025-05-07 17:27:32,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_g__29_30_0
[2025-05-07 17:27:32,152 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_g__29_30_0 given in one single declaration
[2025-05-07 17:27:32,152 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_g__29_30_0
[2025-05-07 17:27:32,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_g__29_30_0
[2025-05-07 17:27:32,152 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_g__29_30_0 given in one single declaration
[2025-05-07 17:27:32,152 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_g__29_30_0
[2025-05-07 17:27:32,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_g__29_30_0
[2025-05-07 17:27:32,152 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_g__29_30_0 given in one single declaration
[2025-05-07 17:27:32,152 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_g__29_30_0
[2025-05-07 17:27:32,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_g__29_30_0
[2025-05-07 17:27:32,152 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_30_0 given in one single declaration
[2025-05-07 17:27:32,152 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_30_0
[2025-05-07 17:27:32,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_30_0
[2025-05-07 17:27:32,152 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_30_0 given in one single declaration
[2025-05-07 17:27:32,152 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_30_0
[2025-05-07 17:27:32,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_30_0
[2025-05-07 17:27:32,152 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_14_C_30_0 given in one single declaration
[2025-05-07 17:27:32,153 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_14_C_30_0
[2025-05-07 17:27:32,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_14_C_30_0
[2025-05-07 17:27:32,153 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_11_C_30_0 given in one single declaration
[2025-05-07 17:27:32,153 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_11_C_30_0
[2025-05-07 17:27:32,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_11_C_30_0
[2025-05-07 17:27:32,153 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_13_C_30_0 given in one single declaration
[2025-05-07 17:27:32,153 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_13_C_30_0
[2025-05-07 17:27:32,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_13_C_30_0
[2025-05-07 17:27:32,153 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_12_C_30_0 given in one single declaration
[2025-05-07 17:27:32,153 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_12_C_30_0
[2025-05-07 17:27:32,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_12_C_30_0
[2025-05-07 17:27:32,153 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:32,153 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:32,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:32,252 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:32,254 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:32,397 INFO  L?                        ?]: Removed 135 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:32,397 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:32,406 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:32,406 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:27:32,406 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:32 BoogieIcfgContainer
[2025-05-07 17:27:32,407 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:32,408 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:32,408 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:32,411 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:32,411 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:32" (1/3) ...
[2025-05-07 17:27:32,412 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abb039a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:32, skipping insertion in model container
[2025-05-07 17:27:32,412 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (2/3) ...
[2025-05-07 17:27:32,412 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abb039a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:32, skipping insertion in model container
[2025-05-07 17:27:32,412 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:32" (3/3) ...
[2025-05-07 17:27:32,413 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:32,424 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:32,425 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 17 procedures, 66 locations, 97 edges, 17 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:32,454 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:32,462 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;@28aebce4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:32,462 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:32,465 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22)
[2025-05-07 17:27:32,471 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:32,471 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:32,472 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 17:27:32,472 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:32,475 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:32,476 INFO  L85        PathProgramCache]: Analyzing trace with hash 1972887594, now seen corresponding path program 1 times
[2025-05-07 17:27:32,481 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:32,481 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506603817]
[2025-05-07 17:27:32,481 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:32,482 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:32,538 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:32,559 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:32,560 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:32,560 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:32,746 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 17:27:32,747 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:32,747 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506603817]
[2025-05-07 17:27:32,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506603817] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:32,747 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:32,750 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:32,752 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128752150]
[2025-05-07 17:27:32,752 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:32,755 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:32,756 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:32,778 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:32,779 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:32,781 INFO  L87              Difference]: Start difference. First operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22) Second operand  has 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 17:27:32,827 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:32,828 INFO  L93              Difference]: Finished difference Result 65 states and 72 transitions.
[2025-05-07 17:27:32,829 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:32,830 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 17:27:32,830 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:32,840 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:27:32,840 INFO  L226             Difference]: Without dead ends: 60
[2025-05-07 17:27:32,841 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 17:27:32,844 INFO  L437           NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 197 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 17:27:32,845 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 197 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:32,856 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2025-05-07 17:27:32,870 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58.
[2025-05-07 17:27:32,871 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 17:27:32,874 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions.
[2025-05-07 17:27:32,875 INFO  L79                 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 51
[2025-05-07 17:27:32,875 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:32,875 INFO  L485      AbstractCegarLoop]: Abstraction has 58 states and 62 transitions.
[2025-05-07 17:27:32,875 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 17:27:32,875 INFO  L278                IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions.
[2025-05-07 17:27:32,877 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:32,877 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:32,877 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 17:27:32,877 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:32,877 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:32,878 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:32,878 INFO  L85        PathProgramCache]: Analyzing trace with hash -580219842, now seen corresponding path program 1 times
[2025-05-07 17:27:32,878 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:32,878 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982676674]
[2025-05-07 17:27:32,878 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:32,878 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:32,909 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:32,946 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:32,946 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:32,946 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:33,140 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 17:27:33,140 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:33,140 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982676674]
[2025-05-07 17:27:33,140 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982676674] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:33,140 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:33,140 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:33,140 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984027581]
[2025-05-07 17:27:33,141 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:33,141 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:33,142 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:33,142 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:33,142 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:33,143 INFO  L87              Difference]: Start difference. First operand 58 states and 62 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:33,219 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:33,219 INFO  L93              Difference]: Finished difference Result 62 states and 66 transitions.
[2025-05-07 17:27:33,220 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:33,220 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), 4 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:27:33,220 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:33,221 INFO  L225             Difference]: With dead ends: 62
[2025-05-07 17:27:33,221 INFO  L226             Difference]: Without dead ends: 62
[2025-05-07 17:27:33,222 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 17:27:33,222 INFO  L437           NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:33,223 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 400 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:33,223 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2025-05-07 17:27:33,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2025-05-07 17:27:33,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 17 states have call successors, (18), 15 states have call predecessors, (18), 17 states have return successors, (20), 18 states have call predecessors, (20), 17 states have call successors, (20)
[2025-05-07 17:27:33,229 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions.
[2025-05-07 17:27:33,229 INFO  L79                 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 51
[2025-05-07 17:27:33,230 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:33,230 INFO  L485      AbstractCegarLoop]: Abstraction has 62 states and 66 transitions.
[2025-05-07 17:27:33,230 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), 4 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:33,231 INFO  L278                IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions.
[2025-05-07 17:27:33,232 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:33,232 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:33,232 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 17:27:33,232 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:33,232 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:33,232 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:33,232 INFO  L85        PathProgramCache]: Analyzing trace with hash -816725970, now seen corresponding path program 1 times
[2025-05-07 17:27:33,233 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:33,233 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230977453]
[2025-05-07 17:27:33,233 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:33,233 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:33,258 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:33,273 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:33,273 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:33,273 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:33,382 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 17:27:33,382 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:33,382 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230977453]
[2025-05-07 17:27:33,383 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230977453] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:33,383 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:33,383 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:33,383 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67852094]
[2025-05-07 17:27:33,383 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:33,383 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:33,383 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:33,384 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:33,384 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:33,384 INFO  L87              Difference]: Start difference. First operand 62 states and 66 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:27:33,420 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:33,420 INFO  L93              Difference]: Finished difference Result 56 states and 60 transitions.
[2025-05-07 17:27:33,421 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:33,421 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), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) Word has length 51
[2025-05-07 17:27:33,421 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:33,421 INFO  L225             Difference]: With dead ends: 56
[2025-05-07 17:27:33,422 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:33,422 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 17:27:33,422 INFO  L437           NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 257 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 17:27:33,423 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 257 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:33,423 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:33,424 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:33,424 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 17:27:33,424 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:33,424 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:27:33,424 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:33,424 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:33,424 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), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:27:33,424 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:33,424 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:33,426 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:33,426 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:33,430 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:27:33,431 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:33,434 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:33 BoogieIcfgContainer
[2025-05-07 17:27:33,435 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:33,435 INFO  L158              Benchmark]: Toolchain (without parser) took 1402.96ms. Allocated memory is still 234.9MB. Free memory was 155.2MB in the beginning and 109.3MB in the end (delta: 45.9MB). Peak memory consumption was 41.2MB. Max. memory is 33.6GB.
[2025-05-07 17:27:33,435 INFO  L158              Benchmark]: SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:33,436 INFO  L158              Benchmark]: ChcToBoogie took 34.18ms. Allocated memory is still 234.9MB. Free memory was 155.2MB in the beginning and 153.0MB in the end (delta: 2.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:33,436 INFO  L158              Benchmark]: Boogie Preprocessor took 53.95ms. Allocated memory is still 234.9MB. Free memory was 153.0MB in the beginning and 150.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:33,436 INFO  L158              Benchmark]: RCFGBuilder took 284.64ms. Allocated memory is still 234.9MB. Free memory was 150.2MB in the beginning and 126.9MB in the end (delta: 23.2MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:33,436 INFO  L158              Benchmark]: TraceAbstraction took 1026.28ms. Allocated memory is still 234.9MB. Free memory was 126.3MB in the beginning and 109.3MB in the end (delta: 17.1MB). Peak memory consumption was 7.6MB. Max. memory is 33.6GB.
[2025-05-07 17:27:33,437 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 34.18ms. Allocated memory is still 234.9MB. Free memory was 155.2MB in the beginning and 153.0MB in the end (delta: 2.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 53.95ms. Allocated memory is still 234.9MB. Free memory was 153.0MB in the beginning and 150.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 284.64ms. Allocated memory is still 234.9MB. Free memory was 150.2MB in the beginning and 126.9MB in the end (delta: 23.2MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1026.28ms. Allocated memory is still 234.9MB. Free memory was 126.3MB in the beginning and 109.3MB in the end (delta: 17.1MB). Peak memory consumption was 7.6MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 17 procedures, 66 locations, 97 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 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, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 854 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 673 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 181 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred 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, 202 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 17:27:33,448 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
