./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/fixed_bytes.sol_1_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:33,844 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:33,881 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf212308-663c-401a-a970-3c07606a58d3/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:33,884 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:33,884 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:33,898 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:33,899 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:33,899 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:33,899 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:33,899 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:33,899 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:33,899 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:33,899 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:33,899 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:33,899 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:33,900 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:33,900 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:33,900 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:33,900 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:33,900 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:33,900 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:33,900 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:33,900 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:33,900 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:33,901 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:33,901 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:33,901 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:34,100 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:34,107 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:34,109 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:34,110 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:34,110 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:34,111 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf212308-663c-401a-a970-3c07606a58d3/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/fixed_bytes.sol_1_no_adts_000.smt2
[2025-05-07 17:27:34,113 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:34,115 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:34,340 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf212308-663c-401a-a970-3c07606a58d3/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/fixed_bytes.sol_1_no_adts_000.smt2
[2025-05-07 17:27:34,343 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:34,343 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:34,344 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:34,344 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:34,344 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:34,346 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,375 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34 Unit
[2025-05-07 17:27:34,376 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:34,376 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:34,376 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:34,376 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:34,392 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,392 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,420 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,421 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,427 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,428 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,430 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,433 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,434 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,450 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:34,450 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:34,450 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:34,451 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:34,451 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (1/1) ...
[2025-05-07 17:27:34,454 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:34,465 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:34,474 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:27:34,476 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:27:34,484 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:34,484 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:34,484 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:34,484 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_8_0 given in one single declaration
[2025-05-07 17:27:34,484 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_8_0
[2025-05-07 17:27:34,484 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_8_0
[2025-05-07 17:27:34,484 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_45_0 given in one single declaration
[2025-05-07 17:27:34,484 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_45_0
[2025-05-07 17:27:34,484 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_45_0
[2025-05-07 17:27:34,484 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_45_0 given in one single declaration
[2025-05-07 17:27:34,484 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_45_0
[2025-05-07 17:27:34,484 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_45_0
[2025-05-07 17:27:34,484 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_16_C_45_0 given in one single declaration
[2025-05-07 17:27:34,484 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_16_C_45_0
[2025-05-07 17:27:34,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_16_C_45_0
[2025-05-07 17:27:34,485 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_13_C_45_0 given in one single declaration
[2025-05-07 17:27:34,485 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_13_C_45_0
[2025-05-07 17:27:34,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_13_C_45_0
[2025-05-07 17:27:34,485 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_15_C_45_0 given in one single declaration
[2025-05-07 17:27:34,485 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_15_C_45_0
[2025-05-07 17:27:34,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_15_C_45_0
[2025-05-07 17:27:34,485 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_14_C_45_0 given in one single declaration
[2025-05-07 17:27:34,485 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_14_C_45_0
[2025-05-07 17:27:34,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_14_C_45_0
[2025-05-07 17:27:34,485 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,485 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__44_45_0
[2025-05-07 17:27:34,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__44_45_0
[2025-05-07 17:27:34,485 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,485 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__44_45_0
[2025-05-07 17:27:34,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__44_45_0
[2025-05-07 17:27:34,485 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,485 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__44_45_0
[2025-05-07 17:27:34,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,486 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_43_45_0 given in one single declaration
[2025-05-07 17:27:34,486 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_43_45_0
[2025-05-07 17:27:34,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_43_45_0
[2025-05-07 17:27:34,486 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,486 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,486 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,486 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__44_45_0
[2025-05-07 17:27:34,486 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,486 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__44_45_0
[2025-05-07 17:27:34,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__44_45_0
[2025-05-07 17:27:34,487 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:34,487 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__44_45_0
[2025-05-07 17:27:34,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__44_45_0
[2025-05-07 17:27:34,487 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:34,487 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:34,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:34,619 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:34,621 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:34,837 INFO  L?                        ?]: Removed 175 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:34,837 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:34,846 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:34,847 INFO  L312             CfgBuilder]: Removed 10 assume(true) statements.
[2025-05-07 17:27:34,847 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:34 BoogieIcfgContainer
[2025-05-07 17:27:34,847 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:34,848 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:34,848 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:34,851 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:34,851 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:34" (1/3) ...
[2025-05-07 17:27:34,852 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6b5058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:34, skipping insertion in model container
[2025-05-07 17:27:34,852 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:34" (2/3) ...
[2025-05-07 17:27:34,852 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6b5058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:34, skipping insertion in model container
[2025-05-07 17:27:34,852 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:34" (3/3) ...
[2025-05-07 17:27:34,853 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:34,863 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:34,866 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 19 procedures, 74 locations, 113 edges, 19 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:34,903 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:34,915 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;@71fc2a3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:34,915 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:34,919 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 74 states, 32 states have (on average 1.09375) internal successors, (35), 35 states have internal predecessors, (35), 22 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 20 states have call predecessors, (26), 22 states have call successors, (26)
[2025-05-07 17:27:34,928 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:34,929 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:34,929 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:34,929 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:34,934 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:34,934 INFO  L85        PathProgramCache]: Analyzing trace with hash -1669821622, now seen corresponding path program 1 times
[2025-05-07 17:27:34,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:34,942 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588635451]
[2025-05-07 17:27:34,942 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:34,942 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:34,989 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:35,069 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:35,069 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,069 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,325 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,325 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,325 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588635451]
[2025-05-07 17:27:35,326 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588635451] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,326 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,339 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:35,340 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415156908]
[2025-05-07 17:27:35,341 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,344 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:35,344 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,371 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:35,371 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:35,374 INFO  L87              Difference]: Start difference. First operand  has 74 states, 32 states have (on average 1.09375) internal successors, (35), 35 states have internal predecessors, (35), 22 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 20 states have call predecessors, (26), 22 states have call successors, (26) Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:35,450 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,450 INFO  L93              Difference]: Finished difference Result 71 states and 81 transitions.
[2025-05-07 17:27:35,451 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:35,453 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:27:35,453 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,461 INFO  L225             Difference]: With dead ends: 71
[2025-05-07 17:27:35,461 INFO  L226             Difference]: Without dead ends: 69
[2025-05-07 17:27:35,463 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:35,467 INFO  L437           NwaCegarLoop]: 78 mSDtfsCounter, 1 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,468 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 376 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,483 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2025-05-07 17:27:35,509 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69.
[2025-05-07 17:27:35,511 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 69 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 31 states have internal predecessors, (31), 21 states have call successors, (23), 16 states have call predecessors, (23), 18 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25)
[2025-05-07 17:27:35,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions.
[2025-05-07 17:27:35,517 INFO  L79                 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 51
[2025-05-07 17:27:35,518 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,518 INFO  L485      AbstractCegarLoop]: Abstraction has 69 states and 79 transitions.
[2025-05-07 17:27:35,519 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:35,519 INFO  L278                IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions.
[2025-05-07 17:27:35,521 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:35,521 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,522 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,522 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:35,522 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,523 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,523 INFO  L85        PathProgramCache]: Analyzing trace with hash -1345721032, now seen corresponding path program 1 times
[2025-05-07 17:27:35,523 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,523 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024164544]
[2025-05-07 17:27:35,523 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,523 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,561 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:35,584 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:35,585 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,585 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,724 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,725 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,725 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024164544]
[2025-05-07 17:27:35,725 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024164544] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,725 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,725 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:35,725 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952667422]
[2025-05-07 17:27:35,725 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,726 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:35,726 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,726 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:35,727 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:35,727 INFO  L87              Difference]: Start difference. First operand 69 states and 79 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 17:27:35,738 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,738 INFO  L93              Difference]: Finished difference Result 73 states and 83 transitions.
[2025-05-07 17:27:35,739 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:35,739 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 17:27:35,739 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,740 INFO  L225             Difference]: With dead ends: 73
[2025-05-07 17:27:35,740 INFO  L226             Difference]: Without dead ends: 69
[2025-05-07 17:27:35,740 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:35,741 INFO  L437           NwaCegarLoop]: 73 mSDtfsCounter, 1 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,742 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 212 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,742 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2025-05-07 17:27:35,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67.
[2025-05-07 17:27:35,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 19 states have call successors, (21), 16 states have call predecessors, (21), 18 states have return successors, (23), 20 states have call predecessors, (23), 19 states have call successors, (23)
[2025-05-07 17:27:35,750 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions.
[2025-05-07 17:27:35,751 INFO  L79                 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 51
[2025-05-07 17:27:35,751 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,751 INFO  L485      AbstractCegarLoop]: Abstraction has 67 states and 74 transitions.
[2025-05-07 17:27:35,751 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 17:27:35,751 INFO  L278                IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions.
[2025-05-07 17:27:35,752 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:35,752 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,753 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,753 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:35,753 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,753 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,753 INFO  L85        PathProgramCache]: Analyzing trace with hash -2074851396, now seen corresponding path program 1 times
[2025-05-07 17:27:35,754 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,754 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13049931]
[2025-05-07 17:27:35,754 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,754 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,774 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:35,789 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:35,789 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,789 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,894 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,894 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13049931]
[2025-05-07 17:27:35,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13049931] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,895 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,895 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:35,895 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000467420]
[2025-05-07 17:27:35,895 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,895 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:35,895 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,896 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:35,896 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:35,896 INFO  L87              Difference]: Start difference. First operand 67 states and 74 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:35,931 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,931 INFO  L93              Difference]: Finished difference Result 72 states and 80 transitions.
[2025-05-07 17:27:35,931 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:35,931 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:27:35,931 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,932 INFO  L225             Difference]: With dead ends: 72
[2025-05-07 17:27:35,933 INFO  L226             Difference]: Without dead ends: 72
[2025-05-07 17:27:35,933 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:35,934 INFO  L437           NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,934 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 328 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,935 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2025-05-07 17:27:35,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 67.
[2025-05-07 17:27:35,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 19 states have call successors, (21), 16 states have call predecessors, (21), 18 states have return successors, (23), 20 states have call predecessors, (23), 19 states have call successors, (23)
[2025-05-07 17:27:35,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions.
[2025-05-07 17:27:35,940 INFO  L79                 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 51
[2025-05-07 17:27:35,941 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,941 INFO  L485      AbstractCegarLoop]: Abstraction has 67 states and 74 transitions.
[2025-05-07 17:27:35,941 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:35,941 INFO  L278                IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions.
[2025-05-07 17:27:35,942 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:35,942 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,942 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,942 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:35,942 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,943 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,943 INFO  L85        PathProgramCache]: Analyzing trace with hash 414625014, now seen corresponding path program 1 times
[2025-05-07 17:27:35,943 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,943 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589683728]
[2025-05-07 17:27:35,943 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,943 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,967 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:35,978 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:35,979 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,979 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:36,144 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:36,144 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:36,144 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589683728]
[2025-05-07 17:27:36,144 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589683728] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:36,144 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:36,144 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:36,144 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771971245]
[2025-05-07 17:27:36,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:36,145 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:36,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:36,145 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:36,145 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:36,146 INFO  L87              Difference]: Start difference. First operand 67 states and 74 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)
[2025-05-07 17:27:36,198 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:36,198 INFO  L93              Difference]: Finished difference Result 37 states and 40 transitions.
[2025-05-07 17:27:36,199 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:36,199 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 51
[2025-05-07 17:27:36,199 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:36,199 INFO  L225             Difference]: With dead ends: 37
[2025-05-07 17:27:36,199 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:36,199 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 17:27:36,200 INFO  L437           NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:36,200 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 195 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:36,201 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:36,201 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:36,201 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:27:36,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:36,201 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:27:36,201 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:36,201 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:36,202 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)
[2025-05-07 17:27:36,202 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:36,202 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:36,204 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:36,205 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:27:36,207 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2025-05-07 17:27:36,209 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:36,211 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:36 BoogieIcfgContainer
[2025-05-07 17:27:36,211 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:36,212 INFO  L158              Benchmark]: Toolchain (without parser) took 1868.51ms. Allocated memory is still 234.9MB. Free memory was 150.1MB in the beginning and 160.0MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:36,212 INFO  L158              Benchmark]: SmtParser took 0.26ms. Allocated memory is still 234.9MB. Free memory is still 173.8MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:36,212 INFO  L158              Benchmark]: ChcToBoogie took 32.01ms. Allocated memory is still 234.9MB. Free memory was 150.1MB in the beginning and 147.3MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:36,213 INFO  L158              Benchmark]: Boogie Preprocessor took 73.39ms. Allocated memory is still 234.9MB. Free memory was 147.3MB in the beginning and 144.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:36,213 INFO  L158              Benchmark]: RCFGBuilder took 396.73ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 144.1MB in the beginning and 268.5MB in the end (delta: -124.4MB). Peak memory consumption was 42.6MB. Max. memory is 33.6GB.
[2025-05-07 17:27:36,213 INFO  L158              Benchmark]: TraceAbstraction took 1363.04ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 267.9MB in the beginning and 160.0MB in the end (delta: 107.9MB). Peak memory consumption was 19.3MB. Max. memory is 33.6GB.
[2025-05-07 17:27:36,214 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.26ms. Allocated memory is still 234.9MB. Free memory is still 173.8MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 32.01ms. Allocated memory is still 234.9MB. Free memory was 150.1MB in the beginning and 147.3MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 73.39ms. Allocated memory is still 234.9MB. Free memory was 147.3MB in the beginning and 144.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 396.73ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 144.1MB in the beginning and 268.5MB in the end (delta: -124.4MB). Peak memory consumption was 42.6MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1363.04ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 267.9MB in the beginning and 160.0MB in the end (delta: 107.9MB). Peak memory consumption was 19.3MB. 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 19 procedures, 74 locations, 113 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 1111 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 857 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 254 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:27:36,225 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
