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


--------------------------------------------------------------------------------


This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:25:08,779 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:25:08,822 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91f9309-78b3-4687-ae67-6f5010791484/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:25:08,825 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:25:08,826 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:25:08,844 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:25:08,845 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:25:08,845 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:25:08,845 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:25:08,845 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:25:08,845 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:25:08,846 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:25:08,846 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:25:08,846 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:25:08,846 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:25:08,846 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:25:08,846 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:25:08,846 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:25:08,846 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:25:08,846 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:25:08,847 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:25:08,847 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:25:08,847 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:25:08,847 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:25:08,847 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:25:08,847 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:25:08,848 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:25:09,049 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:25:09,056 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:25:09,059 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:25:09,060 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:25:09,060 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:25:09,061 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91f9309-78b3-4687-ae67-6f5010791484/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/contract.sol_0_no_adts_000.smt2
[2025-05-07 17:25:09,062 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:25:09,064 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:25:09,248 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91f9309-78b3-4687-ae67-6f5010791484/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/contract.sol_0_no_adts_000.smt2
[2025-05-07 17:25:09,250 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:25:09,251 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:25:09,251 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:25:09,251 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:25:09,252 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:25:09,253 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,278 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09 Unit
[2025-05-07 17:25:09,278 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:25:09,278 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:25:09,279 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:25:09,279 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:25:09,290 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,290 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,309 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,309 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,312 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,313 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,314 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,315 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,316 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,326 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:25:09,326 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:25:09,327 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:25:09,327 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:25:09,327 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (1/1) ...
[2025-05-07 17:25:09,329 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:25:09,337 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:25:09,345 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 17:25:09,348 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 17:25:09,357 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:25:09,357 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:25:09,357 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:25:09,357 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_4_0 given in one single declaration
[2025-05-07 17:25:09,357 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_4_0
[2025-05-07 17:25:09,357 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_4_0
[2025-05-07 17:25:09,357 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_7_function_f__33_34_0 given in one single declaration
[2025-05-07 17:25:09,357 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_7_function_f__33_34_0
[2025-05-07 17:25:09,357 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_7_function_f__33_34_0
[2025-05-07 17:25:09,357 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_f__33_34_0 given in one single declaration
[2025-05-07 17:25:09,357 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_f__33_34_0
[2025-05-07 17:25:09,357 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_f__33_34_0
[2025-05-07 17:25:09,357 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_function_f__33_34_0 given in one single declaration
[2025-05-07 17:25:09,358 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_f_32_34_0 given in one single declaration
[2025-05-07 17:25:09,358 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_f_32_34_0
[2025-05-07 17:25:09,358 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_f_32_34_0
[2025-05-07 17:25:09,358 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__33_34_0 given in one single declaration
[2025-05-07 17:25:09,358 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_return_function_f__33_34_0 given in one single declaration
[2025-05-07 17:25:09,358 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_return_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_return_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_f__33_34_0 given in one single declaration
[2025-05-07 17:25:09,358 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_f__33_34_0 given in one single declaration
[2025-05-07 17:25:09,358 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_f__33_34_0
[2025-05-07 17:25:09,358 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_3_C_34_0 given in one single declaration
[2025-05-07 17:25:09,358 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_3_C_34_0
[2025-05-07 17:25:09,359 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_3_C_34_0
[2025-05-07 17:25:09,359 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_5_C_34_0 given in one single declaration
[2025-05-07 17:25:09,359 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_5_C_34_0
[2025-05-07 17:25:09,359 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_5_C_34_0
[2025-05-07 17:25:09,359 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_21_C_34_0 given in one single declaration
[2025-05-07 17:25:09,359 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_21_C_34_0
[2025-05-07 17:25:09,359 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_21_C_34_0
[2025-05-07 17:25:09,359 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_18_C_34_0 given in one single declaration
[2025-05-07 17:25:09,359 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_18_C_34_0
[2025-05-07 17:25:09,359 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_18_C_34_0
[2025-05-07 17:25:09,359 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_20_C_34_0 given in one single declaration
[2025-05-07 17:25:09,359 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_20_C_34_0
[2025-05-07 17:25:09,359 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_20_C_34_0
[2025-05-07 17:25:09,359 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_19_C_34_0 given in one single declaration
[2025-05-07 17:25:09,359 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_19_C_34_0
[2025-05-07 17:25:09,359 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_19_C_34_0
[2025-05-07 17:25:09,359 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:25:09,359 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:25:09,359 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:25:09,459 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:25:09,461 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:25:09,635 INFO  L?                        ?]: Removed 133 outVars from TransFormulas that were not future-live.
[2025-05-07 17:25:09,635 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:25:09,647 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:25:09,647 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:25:09,647 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:25:09 BoogieIcfgContainer
[2025-05-07 17:25:09,647 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:25:09,650 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:25:09,650 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:25:09,654 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:25:09,654 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:25:09" (1/3) ...
[2025-05-07 17:25:09,655 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101d3c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:25:09, skipping insertion in model container
[2025-05-07 17:25:09,655 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:25:09" (2/3) ...
[2025-05-07 17:25:09,655 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101d3c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:25:09, skipping insertion in model container
[2025-05-07 17:25:09,655 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:25:09" (3/3) ...
[2025-05-07 17:25:09,657 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:25:09,672 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:25:09,673 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 17 procedures, 66 locations, 97 edges, 17 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:25:09,711 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:25:09,721 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;@109bd479, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:25:09,721 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:25:09,725 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22)
[2025-05-07 17:25:09,733 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:25:09,734 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:25:09,734 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 17:25:09,735 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:25:09,739 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:25:09,740 INFO  L85        PathProgramCache]: Analyzing trace with hash 1298123619, now seen corresponding path program 1 times
[2025-05-07 17:25:09,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:25:09,757 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714352825]
[2025-05-07 17:25:09,758 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:25:09,758 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:25:09,808 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:25:09,861 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:25:09,861 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:25:09,861 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:25:10,121 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 17:25:10,121 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:25:10,121 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714352825]
[2025-05-07 17:25:10,122 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714352825] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:25:10,122 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:25:10,125 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:25:10,126 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226920520]
[2025-05-07 17:25:10,127 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:25:10,131 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:25:10,131 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:25:10,163 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:25:10,163 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:25:10,165 INFO  L87              Difference]: Start difference. First operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22) Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:25:10,266 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:25:10,267 INFO  L93              Difference]: Finished difference Result 65 states and 72 transitions.
[2025-05-07 17:25:10,268 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:25:10,269 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:25:10,270 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:25:10,276 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:25:10,276 INFO  L226             Difference]: Without dead ends: 64
[2025-05-07 17:25:10,278 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 17:25:10,280 INFO  L437           NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:25:10,281 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 370 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:25:10,291 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2025-05-07 17:25:10,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2025-05-07 17:25:10,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 29 states have internal predecessors, (29), 19 states have call successors, (20), 15 states have call predecessors, (20), 17 states have return successors, (22), 19 states have call predecessors, (22), 19 states have call successors, (22)
[2025-05-07 17:25:10,310 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions.
[2025-05-07 17:25:10,311 INFO  L79                 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 51
[2025-05-07 17:25:10,312 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:25:10,312 INFO  L485      AbstractCegarLoop]: Abstraction has 64 states and 71 transitions.
[2025-05-07 17:25:10,313 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:25:10,313 INFO  L278                IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions.
[2025-05-07 17:25:10,315 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:25:10,315 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:25:10,315 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 17:25:10,315 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:25:10,315 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:25:10,316 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:25:10,316 INFO  L85        PathProgramCache]: Analyzing trace with hash -765950503, now seen corresponding path program 1 times
[2025-05-07 17:25:10,316 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:25:10,316 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600774804]
[2025-05-07 17:25:10,316 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:25:10,316 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:25:10,346 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:25:10,352 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:25:10,353 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:25:10,353 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:25:10,450 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 17:25:10,450 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:25:10,450 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600774804]
[2025-05-07 17:25:10,450 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600774804] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:25:10,450 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:25:10,450 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:25:10,451 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630952833]
[2025-05-07 17:25:10,451 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:25:10,452 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:25:10,452 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:25:10,452 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:25:10,452 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:25:10,453 INFO  L87              Difference]: Start difference. First operand 64 states and 71 transitions. Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:25:10,463 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:25:10,464 INFO  L93              Difference]: Finished difference Result 68 states and 75 transitions.
[2025-05-07 17:25:10,464 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:25:10,464 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:25:10,464 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:25:10,465 INFO  L225             Difference]: With dead ends: 68
[2025-05-07 17:25:10,466 INFO  L226             Difference]: Without dead ends: 64
[2025-05-07 17:25:10,466 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 17:25:10,466 INFO  L437           NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 196 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 17:25:10,467 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 196 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:25:10,468 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2025-05-07 17:25:10,473 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62.
[2025-05-07 17:25:10,473 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 17 states have call successors, (18), 15 states have call predecessors, (18), 17 states have return successors, (20), 18 states have call predecessors, (20), 17 states have call successors, (20)
[2025-05-07 17:25:10,474 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions.
[2025-05-07 17:25:10,474 INFO  L79                 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 51
[2025-05-07 17:25:10,475 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:25:10,475 INFO  L485      AbstractCegarLoop]: Abstraction has 62 states and 66 transitions.
[2025-05-07 17:25:10,475 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:25:10,475 INFO  L278                IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions.
[2025-05-07 17:25:10,476 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:25:10,476 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:25:10,476 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 17:25:10,476 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:25:10,477 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:25:10,477 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:25:10,477 INFO  L85        PathProgramCache]: Analyzing trace with hash 739403229, now seen corresponding path program 1 times
[2025-05-07 17:25:10,477 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:25:10,477 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917452335]
[2025-05-07 17:25:10,477 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:25:10,477 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:25:10,505 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:25:10,525 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:25:10,525 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:25:10,525 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:25:10,606 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 17:25:10,607 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:25:10,607 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917452335]
[2025-05-07 17:25:10,607 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917452335] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:25:10,607 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:25:10,607 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:25:10,607 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786571774]
[2025-05-07 17:25:10,607 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:25:10,607 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:25:10,607 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:25:10,608 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:25:10,608 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:25:10,608 INFO  L87              Difference]: Start difference. First operand 62 states and 66 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:25:10,641 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:25:10,641 INFO  L93              Difference]: Finished difference Result 56 states and 60 transitions.
[2025-05-07 17:25:10,641 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:25:10,641 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) Word has length 51
[2025-05-07 17:25:10,642 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:25:10,642 INFO  L225             Difference]: With dead ends: 56
[2025-05-07 17:25:10,642 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:25:10,642 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 17:25:10,643 INFO  L437           NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 274 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 17:25:10,643 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:25:10,644 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:25:10,644 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:25:10,644 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 17:25:10,644 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:25:10,644 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:25:10,644 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:25:10,644 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:25:10,645 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:25:10,645 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:25:10,645 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:25:10,647 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:25:10,648 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:25:10,651 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:25:10,654 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:25:10,657 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:25:10 BoogieIcfgContainer
[2025-05-07 17:25:10,657 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:25:10,657 INFO  L158              Benchmark]: Toolchain (without parser) took 1406.45ms. Allocated memory is still 234.9MB. Free memory was 155.0MB in the beginning and 125.5MB in the end (delta: 29.5MB). Peak memory consumption was 41.7MB. Max. memory is 33.6GB.
[2025-05-07 17:25:10,658 INFO  L158              Benchmark]: SmtParser took 0.32ms. Allocated memory is still 234.9MB. Free memory is still 172.0MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:25:10,658 INFO  L158              Benchmark]: ChcToBoogie took 26.77ms. Allocated memory is still 234.9MB. Free memory was 154.9MB in the beginning and 152.8MB in the end (delta: 2.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:25:10,658 INFO  L158              Benchmark]: Boogie Preprocessor took 47.54ms. Allocated memory is still 234.9MB. Free memory was 152.8MB in the beginning and 150.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:25:10,658 INFO  L158              Benchmark]: RCFGBuilder took 320.93ms. Allocated memory is still 234.9MB. Free memory was 150.0MB in the beginning and 126.1MB in the end (delta: 23.9MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:25:10,659 INFO  L158              Benchmark]: TraceAbstraction took 1006.77ms. Allocated memory is still 234.9MB. Free memory was 125.5MB in the beginning and 125.5MB in the end (delta: -60.2kB). Peak memory consumption was 8.2MB. Max. memory is 33.6GB.
[2025-05-07 17:25:10,660 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.32ms. Allocated memory is still 234.9MB. Free memory is still 172.0MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 26.77ms. Allocated memory is still 234.9MB. Free memory was 154.9MB in the beginning and 152.8MB in the end (delta: 2.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 47.54ms. Allocated memory is still 234.9MB. Free memory was 152.8MB in the beginning and 150.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 320.93ms. Allocated memory is still 234.9MB. Free memory was 150.0MB in the beginning and 126.1MB in the end (delta: 23.9MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1006.77ms. Allocated memory is still 234.9MB. Free memory was 125.5MB in the beginning and 125.5MB in the end (delta: -60.2kB). Peak memory consumption was 8.2MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 17 procedures, 66 locations, 97 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 840 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 651 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 189 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:25:10,672 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
