./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/overflow/overflow_sum.sol_0_no_adts_000.smt2 .


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


This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:57,229 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:57,302 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faff34af-3e91-4ec6-8dcb-391e442b4b33/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:57,307 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:57,307 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:57,320 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:57,320 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:57,320 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:57,320 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:57,321 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:57,321 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:57,321 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:57,321 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:57,321 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:57,321 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:57,321 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:57,321 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:57,321 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:57,322 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:57,322 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:57,322 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:57,322 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:57,322 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:57,322 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:57,322 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:57,323 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:57,323 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:57,529 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:57,537 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:57,539 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:57,540 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:57,541 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:57,541 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faff34af-3e91-4ec6-8dcb-391e442b4b33/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/overflow/overflow_sum.sol_0_no_adts_000.smt2
[2025-05-07 17:26:57,542 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:57,544 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:57,764 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faff34af-3e91-4ec6-8dcb-391e442b4b33/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/overflow/overflow_sum.sol_0_no_adts_000.smt2
[2025-05-07 17:26:57,767 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:57,768 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:57,769 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:57,769 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:57,769 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:57,772 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,799 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57 Unit
[2025-05-07 17:26:57,799 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:57,800 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:57,800 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:57,800 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:57,811 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,811 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,830 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,830 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,833 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,835 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,837 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,841 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,843 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,862 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:57,863 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:57,863 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:57,863 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:57,864 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (1/1) ...
[2025-05-07 17:26:57,866 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:57,875 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:57,885 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:26:57,887 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:26:57,897 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:57,897 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:57,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:57,897 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_5_0 given in one single declaration
[2025-05-07 17:26:57,897 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_5_0
[2025-05-07 17:26:57,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_5_0
[2025-05-07 17:26:57,897 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_56_0 given in one single declaration
[2025-05-07 17:26:57,897 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_56_0
[2025-05-07 17:26:57,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_56_0
[2025-05-07 17:26:57,897 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_56_0 given in one single declaration
[2025-05-07 17:26:57,897 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_56_0
[2025-05-07 17:26:57,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_56_0
[2025-05-07 17:26:57,898 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_12_C_56_0 given in one single declaration
[2025-05-07 17:26:57,898 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_12_C_56_0
[2025-05-07 17:26:57,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_12_C_56_0
[2025-05-07 17:26:57,898 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_14_C_56_0 given in one single declaration
[2025-05-07 17:26:57,898 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_14_C_56_0
[2025-05-07 17:26:57,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_14_C_56_0
[2025-05-07 17:26:57,898 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_13_C_56_0 given in one single declaration
[2025-05-07 17:26:57,898 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_13_C_56_0
[2025-05-07 17:26:57,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_13_C_56_0
[2025-05-07 17:26:57,898 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_15_C_56_0 given in one single declaration
[2025-05-07 17:26:57,898 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_15_C_56_0
[2025-05-07 17:26:57,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_15_C_56_0
[2025-05-07 17:26:57,898 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__55_56_0 given in one single declaration
[2025-05-07 17:26:57,898 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__55_56_0 given in one single declaration
[2025-05-07 17:26:57,899 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__55_56_0 given in one single declaration
[2025-05-07 17:26:57,899 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__55_56_0 given in one single declaration
[2025-05-07 17:26:57,899 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_54_56_0 given in one single declaration
[2025-05-07 17:26:57,899 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_54_56_0
[2025-05-07 17:26:57,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_54_56_0
[2025-05-07 17:26:57,899 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__55_56_0 given in one single declaration
[2025-05-07 17:26:57,899 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__55_56_0
[2025-05-07 17:26:57,899 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__55_56_0 given in one single declaration
[2025-05-07 17:26:57,899 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__55_56_0
[2025-05-07 17:26:57,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__55_56_0
[2025-05-07 17:26:57,900 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__55_56_0 given in one single declaration
[2025-05-07 17:26:57,900 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__55_56_0
[2025-05-07 17:26:57,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__55_56_0
[2025-05-07 17:26:57,900 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:57,900 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:57,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:58,012 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:58,014 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:58,205 INFO  L?                        ?]: Removed 121 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:58,206 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:58,214 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:58,214 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:26:58,215 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:58 BoogieIcfgContainer
[2025-05-07 17:26:58,215 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:58,217 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:58,217 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:58,219 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:58,219 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:57" (1/3) ...
[2025-05-07 17:26:58,220 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d017f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:58, skipping insertion in model container
[2025-05-07 17:26:58,220 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:57" (2/3) ...
[2025-05-07 17:26:58,220 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d017f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:58, skipping insertion in model container
[2025-05-07 17:26:58,220 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:58" (3/3) ...
[2025-05-07 17:26:58,221 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:58,231 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:58,233 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 17 procedures, 66 locations, 97 edges, 17 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:58,267 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:58,276 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;@25ec6ef3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:58,276 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:58,279 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22)
[2025-05-07 17:26:58,286 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:58,286 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:58,286 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:58,286 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:58,290 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:58,290 INFO  L85        PathProgramCache]: Analyzing trace with hash 2037357871, now seen corresponding path program 1 times
[2025-05-07 17:26:58,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:58,295 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814906474]
[2025-05-07 17:26:58,295 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:58,296 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:58,340 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:58,369 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:58,369 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:58,369 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:58,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:58,457 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:58,457 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814906474]
[2025-05-07 17:26:58,457 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814906474] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:58,457 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:58,459 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:26:58,461 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411385557]
[2025-05-07 17:26:58,461 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:58,464 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:26:58,464 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:58,480 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:26:58,481 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:26:58,482 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 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:26:58,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:58,509 INFO  L93              Difference]: Finished difference Result 42 states and 42 transitions.
[2025-05-07 17:26:58,509 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:26:58,510 INFO  L79                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 51
[2025-05-07 17:26:58,510 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:58,513 INFO  L225             Difference]: With dead ends: 42
[2025-05-07 17:26:58,513 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:58,514 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:26:58,516 INFO  L437           NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:58,517 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:58,529 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:58,534 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:58,535 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:26:58,537 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:58,538 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:26:58,538 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:58,538 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:58,539 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:26:58,539 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:58,539 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:58,541 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:58,542 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:58,545 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2025-05-07 17:26:58,548 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:58,552 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:58 BoogieIcfgContainer
[2025-05-07 17:26:58,552 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:58,553 INFO  L158              Benchmark]: Toolchain (without parser) took 784.41ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 151.3MB in the beginning and 259.9MB in the end (delta: -108.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:58,553 INFO  L158              Benchmark]: SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 172.1MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:58,553 INFO  L158              Benchmark]: ChcToBoogie took 30.36ms. Allocated memory is still 234.9MB. Free memory was 151.3MB in the beginning and 148.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:58,554 INFO  L158              Benchmark]: Boogie Preprocessor took 62.66ms. Allocated memory is still 234.9MB. Free memory was 148.7MB in the beginning and 145.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:58,554 INFO  L158              Benchmark]: RCFGBuilder took 351.77ms. Allocated memory is still 234.9MB. Free memory was 145.7MB in the beginning and 191.9MB in the end (delta: -46.2MB). Peak memory consumption was 42.4MB. Max. memory is 33.6GB.
[2025-05-07 17:26:58,554 INFO  L158              Benchmark]: TraceAbstraction took 335.42ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 191.3MB in the beginning and 259.9MB in the end (delta: -68.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:58,556 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 172.1MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 30.36ms. Allocated memory is still 234.9MB. Free memory was 151.3MB in the beginning and 148.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 62.66ms. Allocated memory is still 234.9MB. Free memory was 148.7MB in the beginning and 145.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 351.77ms. Allocated memory is still 234.9MB. Free memory was 145.7MB in the beginning and 191.9MB in the end (delta: -46.2MB). Peak memory consumption was 42.4MB. Max. memory is 33.6GB.
 * TraceAbstraction took 335.42ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 191.3MB in the beginning and 259.9MB in the end (delta: -68.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 17 procedures, 66 locations, 97 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 42 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:26:58,571 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
