./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/double_access.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:25:26,562 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:25:26,598 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f8642f-cd30-424e-b899-1672cde84939/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:25:26,601 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:25:26,601 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:25:26,614 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:25:26,614 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:25:26,614 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:25:26,615 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:25:26,615 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:25:26,615 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:25:26,615 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:25:26,615 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:25:26,615 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:25:26,615 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:25:26,615 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:25:26,615 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:25:26,615 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:25:26,615 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:25:26,616 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:25:26,616 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:25:26,616 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:25:26,616 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:25:26,616 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:25:26,616 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:25:26,616 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:25:26,616 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:25:26,800 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:25:26,805 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:25:26,807 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:25:26,808 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:25:26,808 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:25:26,809 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f8642f-cd30-424e-b899-1672cde84939/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/double_access.sol_0_no_adts_000.smt2
[2025-05-07 17:25:26,810 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:25:26,812 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:25:27,007 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63f8642f-cd30-424e-b899-1672cde84939/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/double_access.sol_0_no_adts_000.smt2
[2025-05-07 17:25:27,009 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:25:27,010 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:25:27,011 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:25:27,011 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:25:27,011 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:25:27,013 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,038 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27 Unit
[2025-05-07 17:25:27,038 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:25:27,039 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:25:27,039 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:25:27,039 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:25:27,050 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,050 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,070 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,070 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,073 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,074 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,075 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,077 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,078 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,087 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:25:27,088 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:25:27,088 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:25:27,088 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:25:27,089 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (1/1) ...
[2025-05-07 17:25:27,091 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:25:27,099 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:25:27,107 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 17:25:27,110 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 17:25:27,117 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:25:27,117 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:25:27,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:25:27,117 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_5_0 given in one single declaration
[2025-05-07 17:25:27,117 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_5_0
[2025-05-07 17:25:27,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_5_0
[2025-05-07 17:25:27,118 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_42_0 given in one single declaration
[2025-05-07 17:25:27,118 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_42_0
[2025-05-07 17:25:27,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_42_0
[2025-05-07 17:25:27,118 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_42_0 given in one single declaration
[2025-05-07 17:25:27,118 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_42_0
[2025-05-07 17:25:27,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_42_0
[2025-05-07 17:25:27,118 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_12_C_42_0 given in one single declaration
[2025-05-07 17:25:27,118 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_12_C_42_0
[2025-05-07 17:25:27,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_12_C_42_0
[2025-05-07 17:25:27,118 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_14_C_42_0 given in one single declaration
[2025-05-07 17:25:27,118 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_14_C_42_0
[2025-05-07 17:25:27,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_14_C_42_0
[2025-05-07 17:25:27,118 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_13_C_42_0 given in one single declaration
[2025-05-07 17:25:27,118 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_13_C_42_0
[2025-05-07 17:25:27,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_13_C_42_0
[2025-05-07 17:25:27,118 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_15_C_42_0 given in one single declaration
[2025-05-07 17:25:27,118 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_15_C_42_0
[2025-05-07 17:25:27,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_15_C_42_0
[2025-05-07 17:25:27,119 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__41_42_0 given in one single declaration
[2025-05-07 17:25:27,119 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__41_42_0 given in one single declaration
[2025-05-07 17:25:27,119 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__41_42_0 given in one single declaration
[2025-05-07 17:25:27,119 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__41_42_0 given in one single declaration
[2025-05-07 17:25:27,119 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_40_42_0 given in one single declaration
[2025-05-07 17:25:27,119 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_40_42_0
[2025-05-07 17:25:27,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_40_42_0
[2025-05-07 17:25:27,119 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__41_42_0 given in one single declaration
[2025-05-07 17:25:27,119 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__41_42_0
[2025-05-07 17:25:27,119 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__41_42_0 given in one single declaration
[2025-05-07 17:25:27,119 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__41_42_0
[2025-05-07 17:25:27,120 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__41_42_0
[2025-05-07 17:25:27,120 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__41_42_0 given in one single declaration
[2025-05-07 17:25:27,120 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__41_42_0
[2025-05-07 17:25:27,120 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__41_42_0
[2025-05-07 17:25:27,120 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__41_42_0 given in one single declaration
[2025-05-07 17:25:27,120 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__41_42_0
[2025-05-07 17:25:27,120 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__41_42_0
[2025-05-07 17:25:27,120 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:25:27,120 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:25:27,120 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:25:27,233 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:25:27,235 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:25:27,423 INFO  L?                        ?]: Removed 153 outVars from TransFormulas that were not future-live.
[2025-05-07 17:25:27,423 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:25:27,434 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:25:27,434 INFO  L312             CfgBuilder]: Removed 9 assume(true) statements.
[2025-05-07 17:25:27,435 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:25:27 BoogieIcfgContainer
[2025-05-07 17:25:27,435 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:25:27,437 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:25:27,437 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:25:27,440 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:25:27,441 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:25:27" (1/3) ...
[2025-05-07 17:25:27,441 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313a2d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:25:27, skipping insertion in model container
[2025-05-07 17:25:27,441 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:27" (2/3) ...
[2025-05-07 17:25:27,442 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313a2d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:25:27, skipping insertion in model container
[2025-05-07 17:25:27,442 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:25:27" (3/3) ...
[2025-05-07 17:25:27,443 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:25:27,457 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:25:27,459 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 18 procedures, 70 locations, 105 edges, 18 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:25:27,487 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:25:27,497 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;@66b4f4a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:25:27,497 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:25:27,500 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 70 states, 30 states have (on average 1.1) internal successors, (33), 33 states have internal predecessors, (33), 21 states have call successors, (24), 17 states have call predecessors, (24), 17 states have return successors, (24), 19 states have call predecessors, (24), 21 states have call successors, (24)
[2025-05-07 17:25:27,506 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:25:27,506 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:25:27,506 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 17:25:27,507 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:25:27,510 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:25:27,510 INFO  L85        PathProgramCache]: Analyzing trace with hash -2071059857, now seen corresponding path program 1 times
[2025-05-07 17:25:27,516 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:25:27,516 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625767817]
[2025-05-07 17:25:27,516 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:25:27,516 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:25:27,560 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:25:27,635 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:25:27,636 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:25:27,636 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:25:27,910 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 17:25:27,911 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:25:27,911 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625767817]
[2025-05-07 17:25:27,912 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625767817] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:25:27,912 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:25:27,914 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:25:27,916 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162023933]
[2025-05-07 17:25:27,916 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:25:27,920 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:25:27,920 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:25:27,950 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:25:27,950 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:25:27,955 INFO  L87              Difference]: Start difference. First operand  has 70 states, 30 states have (on average 1.1) internal successors, (33), 33 states have internal predecessors, (33), 21 states have call successors, (24), 17 states have call predecessors, (24), 17 states have return successors, (24), 19 states have call predecessors, (24), 21 states have call successors, (24) Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)
[2025-05-07 17:25:28,069 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:25:28,070 INFO  L93              Difference]: Finished difference Result 67 states and 75 transitions.
[2025-05-07 17:25:28,071 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:25:28,072 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 51
[2025-05-07 17:25:28,072 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:25:28,078 INFO  L225             Difference]: With dead ends: 67
[2025-05-07 17:25:28,078 INFO  L226             Difference]: Without dead ends: 65
[2025-05-07 17:25:28,080 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 17:25:28,083 INFO  L437           NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:25:28,084 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 431 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:25:28,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2025-05-07 17:25:28,113 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2025-05-07 17:25:28,115 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 65 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 29 states have internal predecessors, (29), 20 states have call successors, (21), 15 states have call predecessors, (21), 17 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23)
[2025-05-07 17:25:28,118 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions.
[2025-05-07 17:25:28,119 INFO  L79                 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 51
[2025-05-07 17:25:28,120 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:25:28,120 INFO  L485      AbstractCegarLoop]: Abstraction has 65 states and 73 transitions.
[2025-05-07 17:25:28,121 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)
[2025-05-07 17:25:28,121 INFO  L278                IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions.
[2025-05-07 17:25:28,123 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:25:28,123 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:25:28,123 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 17:25:28,123 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:25:28,123 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:25:28,124 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:25:28,124 INFO  L85        PathProgramCache]: Analyzing trace with hash -482293, now seen corresponding path program 1 times
[2025-05-07 17:25:28,124 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:25:28,124 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835956190]
[2025-05-07 17:25:28,124 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:25:28,124 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:25:28,151 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:25:28,173 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:25:28,173 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:25:28,173 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:25:28,272 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 17:25:28,272 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:25:28,272 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835956190]
[2025-05-07 17:25:28,272 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835956190] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:25:28,272 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:25:28,272 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:25:28,272 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47450819]
[2025-05-07 17:25:28,272 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:25:28,273 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:25:28,273 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:25:28,274 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:25:28,274 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:25:28,274 INFO  L87              Difference]: Start difference. First operand 65 states and 73 transitions. Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:25:28,285 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:25:28,285 INFO  L93              Difference]: Finished difference Result 67 states and 74 transitions.
[2025-05-07 17:25:28,285 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:25:28,285 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 51
[2025-05-07 17:25:28,286 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:25:28,286 INFO  L225             Difference]: With dead ends: 67
[2025-05-07 17:25:28,286 INFO  L226             Difference]: Without dead ends: 63
[2025-05-07 17:25:28,287 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 17:25:28,287 INFO  L437           NwaCegarLoop]: 67 mSDtfsCounter, 1 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:25:28,288 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 190 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:25:28,288 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2025-05-07 17:25:28,293 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63.
[2025-05-07 17:25:28,294 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 18 states have call successors, (19), 15 states have call predecessors, (19), 17 states have return successors, (21), 19 states have call predecessors, (21), 18 states have call successors, (21)
[2025-05-07 17:25:28,295 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions.
[2025-05-07 17:25:28,295 INFO  L79                 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 51
[2025-05-07 17:25:28,295 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:25:28,295 INFO  L485      AbstractCegarLoop]: Abstraction has 63 states and 68 transitions.
[2025-05-07 17:25:28,295 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:25:28,296 INFO  L278                IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions.
[2025-05-07 17:25:28,297 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:25:28,297 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:25:28,297 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 17:25:28,297 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:25:28,297 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:25:28,298 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:25:28,298 INFO  L85        PathProgramCache]: Analyzing trace with hash 1087725199, now seen corresponding path program 1 times
[2025-05-07 17:25:28,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:25:28,298 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505349864]
[2025-05-07 17:25:28,298 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:25:28,298 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:25:28,325 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:25:28,338 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:25:28,338 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:25:28,339 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:25:28,428 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 17:25:28,428 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:25:28,428 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505349864]
[2025-05-07 17:25:28,428 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505349864] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:25:28,428 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:25:28,429 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:25:28,429 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79828902]
[2025-05-07 17:25:28,429 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:25:28,429 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:25:28,429 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:25:28,430 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:25:28,430 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:25:28,430 INFO  L87              Difference]: Start difference. First operand 63 states and 68 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:25:28,454 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:25:28,454 INFO  L93              Difference]: Finished difference Result 33 states and 34 transitions.
[2025-05-07 17:25:28,454 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:25:28,455 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:25:28,455 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:25:28,455 INFO  L225             Difference]: With dead ends: 33
[2025-05-07 17:25:28,455 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:25:28,455 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 17:25:28,456 INFO  L437           NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:25:28,456 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:25:28,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:25:28,457 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:25:28,457 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 17:25:28,457 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:25:28,457 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:25:28,457 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:25:28,457 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:25:28,458 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:25:28,458 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:25:28,458 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:25:28,460 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:25:28,461 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:25:28,463 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:25:28,465 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:25:28,468 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:25:28 BoogieIcfgContainer
[2025-05-07 17:25:28,468 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:25:28,469 INFO  L158              Benchmark]: Toolchain (without parser) took 1458.79ms. Allocated memory is still 234.9MB. Free memory was 154.8MB in the beginning and 114.8MB in the end (delta: 40.0MB). Peak memory consumption was 42.1MB. Max. memory is 33.6GB.
[2025-05-07 17:25:28,469 INFO  L158              Benchmark]: SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 174.3MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:25:28,470 INFO  L158              Benchmark]: ChcToBoogie took 27.66ms. Allocated memory is still 234.9MB. Free memory was 154.7MB in the beginning and 152.2MB in the end (delta: 2.4MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:25:28,470 INFO  L158              Benchmark]: Boogie Preprocessor took 48.78ms. Allocated memory is still 234.9MB. Free memory was 152.2MB in the beginning and 148.6MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:25:28,470 INFO  L158              Benchmark]: RCFGBuilder took 346.70ms. Allocated memory is still 234.9MB. Free memory was 148.5MB in the beginning and 192.1MB in the end (delta: -43.7MB). Peak memory consumption was 42.6MB. Max. memory is 33.6GB.
[2025-05-07 17:25:28,470 INFO  L158              Benchmark]: TraceAbstraction took 1031.60ms. Allocated memory is still 234.9MB. Free memory was 191.6MB in the beginning and 114.8MB in the end (delta: 76.7MB). Peak memory consumption was 66.7MB. Max. memory is 33.6GB.
[2025-05-07 17:25:28,471 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 174.3MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 27.66ms. Allocated memory is still 234.9MB. Free memory was 154.7MB in the beginning and 152.2MB in the end (delta: 2.4MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 48.78ms. Allocated memory is still 234.9MB. Free memory was 152.2MB in the beginning and 148.6MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 346.70ms. Allocated memory is still 234.9MB. Free memory was 148.5MB in the beginning and 192.1MB in the end (delta: -43.7MB). Peak memory consumption was 42.6MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1031.60ms. Allocated memory is still 234.9MB. Free memory was 191.6MB in the beginning and 114.8MB in the end (delta: 76.7MB). Peak memory consumption was 66.7MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 18 procedures, 70 locations, 105 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 758 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 598 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 160 mSDtfsCounter, 52 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=70occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 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 17:25:28,483 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
