./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/tuple_different_count_assignment_1.sol_1_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:21,474 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:21,515 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682d05c6-85a6-4134-9cf6-0189d2000244/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:21,518 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:21,518 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:21,531 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:21,532 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:21,532 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:21,532 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:21,532 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:21,532 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:21,532 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:21,532 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:21,532 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:21,533 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:21,533 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:21,533 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:21,534 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:21,534 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:21,718 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:21,726 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:21,728 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:21,729 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:21,730 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:21,731 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682d05c6-85a6-4134-9cf6-0189d2000244/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/tuple_different_count_assignment_1.sol_1_no_adts_000.smt2
[2025-05-07 17:26:21,732 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:21,735 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:21,919 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682d05c6-85a6-4134-9cf6-0189d2000244/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/tuple_different_count_assignment_1.sol_1_no_adts_000.smt2
[2025-05-07 17:26:21,921 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:21,922 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:21,922 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:21,922 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:21,923 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:21,924 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,950 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21 Unit
[2025-05-07 17:26:21,950 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:21,951 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:21,951 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:21,951 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:21,962 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,962 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,982 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,982 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,985 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,986 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,987 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,989 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,990 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,998 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:21,999 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:21,999 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:21,999 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:22,000 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:22,001 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:22,010 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:22,019 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:26:22,021 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:26:22,028 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:22,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:22,029 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_4_0 given in one single declaration
[2025-05-07 17:26:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_4_0
[2025-05-07 17:26:22,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_4_0
[2025-05-07 17:26:22,029 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__39_40_0 given in one single declaration
[2025-05-07 17:26:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__39_40_0
[2025-05-07 17:26:22,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__39_40_0
[2025-05-07 17:26:22,029 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__39_40_0 given in one single declaration
[2025-05-07 17:26:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__39_40_0
[2025-05-07 17:26:22,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__39_40_0
[2025-05-07 17:26:22,029 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__39_40_0 given in one single declaration
[2025-05-07 17:26:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__39_40_0
[2025-05-07 17:26:22,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__39_40_0
[2025-05-07 17:26:22,029 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_38_40_0 given in one single declaration
[2025-05-07 17:26:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_38_40_0
[2025-05-07 17:26:22,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_38_40_0
[2025-05-07 17:26:22,029 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__39_40_0 given in one single declaration
[2025-05-07 17:26:22,030 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__39_40_0
[2025-05-07 17:26:22,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__39_40_0
[2025-05-07 17:26:22,030 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__39_40_0 given in one single declaration
[2025-05-07 17:26:22,030 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__39_40_0
[2025-05-07 17:26:22,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__39_40_0
[2025-05-07 17:26:22,030 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__39_40_0 given in one single declaration
[2025-05-07 17:26:22,030 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__39_40_0
[2025-05-07 17:26:22,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__39_40_0
[2025-05-07 17:26:22,030 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__39_40_0 given in one single declaration
[2025-05-07 17:26:22,030 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__39_40_0
[2025-05-07 17:26:22,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__39_40_0
[2025-05-07 17:26:22,030 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_40_0 given in one single declaration
[2025-05-07 17:26:22,030 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_40_0
[2025-05-07 17:26:22,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_40_0
[2025-05-07 17:26:22,030 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_40_0 given in one single declaration
[2025-05-07 17:26:22,030 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_40_0
[2025-05-07 17:26:22,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_40_0
[2025-05-07 17:26:22,030 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_14_C_40_0 given in one single declaration
[2025-05-07 17:26:22,030 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_14_C_40_0
[2025-05-07 17:26:22,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_14_C_40_0
[2025-05-07 17:26:22,031 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_11_C_40_0 given in one single declaration
[2025-05-07 17:26:22,031 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_11_C_40_0
[2025-05-07 17:26:22,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_11_C_40_0
[2025-05-07 17:26:22,031 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_13_C_40_0 given in one single declaration
[2025-05-07 17:26:22,031 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_13_C_40_0
[2025-05-07 17:26:22,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_13_C_40_0
[2025-05-07 17:26:22,031 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_12_C_40_0 given in one single declaration
[2025-05-07 17:26:22,031 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_12_C_40_0
[2025-05-07 17:26:22,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_12_C_40_0
[2025-05-07 17:26:22,031 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:22,031 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:22,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:22,133 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:22,135 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:22,293 INFO  L?                        ?]: Removed 179 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:22,293 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:22,302 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:22,303 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:26:22,303 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:22 BoogieIcfgContainer
[2025-05-07 17:26:22,303 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:22,306 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:22,306 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:22,308 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:22,309 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:21" (1/3) ...
[2025-05-07 17:26:22,309 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb0feb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:22, skipping insertion in model container
[2025-05-07 17:26:22,309 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (2/3) ...
[2025-05-07 17:26:22,309 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb0feb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:22, skipping insertion in model container
[2025-05-07 17:26:22,310 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:22" (3/3) ...
[2025-05-07 17:26:22,311 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:22,322 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:22,324 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 17:26:22,369 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:22,378 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;@63868bd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:22,378 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:22,381 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 17:26:22,388 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:22,388 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:22,389 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:22,389 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:22,393 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:22,393 INFO  L85        PathProgramCache]: Analyzing trace with hash 1671611882, now seen corresponding path program 1 times
[2025-05-07 17:26:22,399 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:22,399 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076359008]
[2025-05-07 17:26:22,399 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:22,399 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:22,445 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:22,462 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:22,462 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:22,462 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:22,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:22,611 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:22,611 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076359008]
[2025-05-07 17:26:22,611 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076359008] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:22,611 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:22,613 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:22,614 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464763081]
[2025-05-07 17:26:22,615 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:22,618 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:22,618 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:22,637 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:22,638 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:22,639 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 17:26:22,676 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:22,676 INFO  L93              Difference]: Finished difference Result 65 states and 72 transitions.
[2025-05-07 17:26:22,677 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:22,678 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:26:22,678 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:22,683 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:26:22,683 INFO  L226             Difference]: Without dead ends: 60
[2025-05-07 17:26:22,685 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:22,687 INFO  L437           NwaCegarLoop]: 69 mSDtfsCounter, 1 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:22,687 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 199 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:22,701 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2025-05-07 17:26:22,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58.
[2025-05-07 17:26:22,722 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 17 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 16 states have call predecessors, (18), 17 states have call successors, (18)
[2025-05-07 17:26:22,725 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions.
[2025-05-07 17:26:22,726 INFO  L79                 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 51
[2025-05-07 17:26:22,726 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:22,726 INFO  L485      AbstractCegarLoop]: Abstraction has 58 states and 62 transitions.
[2025-05-07 17:26:22,727 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:22,727 INFO  L278                IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions.
[2025-05-07 17:26:22,729 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:22,729 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:22,729 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:22,729 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:22,729 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:22,730 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:22,730 INFO  L85        PathProgramCache]: Analyzing trace with hash 1935783926, now seen corresponding path program 1 times
[2025-05-07 17:26:22,730 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:22,730 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525021357]
[2025-05-07 17:26:22,730 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:22,731 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:22,761 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:22,798 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:22,798 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:22,798 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:22,942 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:22,943 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:22,943 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525021357]
[2025-05-07 17:26:22,943 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525021357] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:22,943 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:22,943 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:22,943 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459237847]
[2025-05-07 17:26:22,943 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:22,944 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:22,944 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:22,945 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:22,945 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:22,946 INFO  L87              Difference]: Start difference. First operand 58 states and 62 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 17:26:22,984 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:22,984 INFO  L93              Difference]: Finished difference Result 62 states and 66 transitions.
[2025-05-07 17:26:22,984 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:22,985 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 17:26:22,985 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:22,985 INFO  L225             Difference]: With dead ends: 62
[2025-05-07 17:26:22,985 INFO  L226             Difference]: Without dead ends: 62
[2025-05-07 17:26:22,986 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:22,986 INFO  L437           NwaCegarLoop]: 59 mSDtfsCounter, 1 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:22,986 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 285 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:22,987 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2025-05-07 17:26:22,990 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2025-05-07 17:26:22,990 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 17:26:22,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions.
[2025-05-07 17:26:22,991 INFO  L79                 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 51
[2025-05-07 17:26:22,992 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:22,992 INFO  L485      AbstractCegarLoop]: Abstraction has 62 states and 66 transitions.
[2025-05-07 17:26:22,992 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 17:26:22,992 INFO  L278                IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions.
[2025-05-07 17:26:22,993 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:22,993 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:22,993 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:22,993 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:22,993 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:22,993 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:22,994 INFO  L85        PathProgramCache]: Analyzing trace with hash -229354116, now seen corresponding path program 1 times
[2025-05-07 17:26:22,994 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:22,994 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67752925]
[2025-05-07 17:26:22,994 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:22,994 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:23,017 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:23,029 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:23,029 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:23,029 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:23,178 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:23,178 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:23,179 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67752925]
[2025-05-07 17:26:23,179 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67752925] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:23,179 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:23,179 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:26:23,179 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404937764]
[2025-05-07 17:26:23,179 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:23,179 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:26:23,179 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:23,179 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:26:23,180 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:23,180 INFO  L87              Difference]: Start difference. First operand 62 states and 66 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 17:26:23,242 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:23,242 INFO  L93              Difference]: Finished difference Result 56 states and 60 transitions.
[2025-05-07 17:26:23,242 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:26:23,242 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 17:26:23,243 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:23,243 INFO  L225             Difference]: With dead ends: 56
[2025-05-07 17:26:23,243 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:23,243 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:23,243 INFO  L437           NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:23,243 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 315 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:23,244 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:23,244 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:23,244 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:26:23,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:23,244 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:26:23,244 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:23,244 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:23,245 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 17:26:23,245 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:23,245 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:23,246 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:23,247 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:23,249 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:26:23,251 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:23,253 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:23 BoogieIcfgContainer
[2025-05-07 17:26:23,253 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:23,253 INFO  L158              Benchmark]: Toolchain (without parser) took 1331.66ms. Allocated memory is still 234.9MB. Free memory was 154.4MB in the beginning and 102.3MB in the end (delta: 52.2MB). Peak memory consumption was 75.0MB. Max. memory is 33.6GB.
[2025-05-07 17:26:23,254 INFO  L158              Benchmark]: SmtParser took 0.32ms. Allocated memory is still 234.9MB. Free memory is still 173.0MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:23,254 INFO  L158              Benchmark]: ChcToBoogie took 27.79ms. Allocated memory is still 234.9MB. Free memory was 154.4MB in the beginning and 151.7MB in the end (delta: 2.8MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:23,254 INFO  L158              Benchmark]: Boogie Preprocessor took 47.86ms. Allocated memory is still 234.9MB. Free memory was 151.7MB in the beginning and 148.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:23,254 INFO  L158              Benchmark]: RCFGBuilder took 304.38ms. Allocated memory is still 234.9MB. Free memory was 148.7MB in the beginning and 122.2MB in the end (delta: 26.5MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:23,254 INFO  L158              Benchmark]: TraceAbstraction took 947.41ms. Allocated memory is still 234.9MB. Free memory was 121.7MB in the beginning and 102.3MB in the end (delta: 19.4MB). Peak memory consumption was 41.4MB. Max. memory is 33.6GB.
[2025-05-07 17:26:23,255 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.32ms. Allocated memory is still 234.9MB. Free memory is still 173.0MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 27.79ms. Allocated memory is still 234.9MB. Free memory was 154.4MB in the beginning and 151.7MB in the end (delta: 2.8MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 47.86ms. Allocated memory is still 234.9MB. Free memory was 151.7MB in the beginning and 148.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 304.38ms. Allocated memory is still 234.9MB. Free memory was 148.7MB in the beginning and 122.2MB in the end (delta: 26.5MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 947.41ms. Allocated memory is still 234.9MB. Free memory was 121.7MB in the beginning and 102.3MB in the end (delta: 19.4MB). Peak memory consumption was 41.4MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 17 procedures, 66 locations, 97 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 799 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 616 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 183 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 0.4s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:26:23,264 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
