./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/msg_sender_1.sol_0_no_adts_000.smt2 .


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


This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:29:20,953 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:29:20,990 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52830aad-c861-4967-ba99-48e38456d080/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:29:20,993 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:29:20,993 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:29:21,007 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:29:21,008 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:29:21,008 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:29:21,008 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:29:21,008 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:29:21,008 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:29:21,008 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:29:21,008 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:29:21,008 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:29:21,008 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:29:21,009 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:29:21,009 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:29:21,009 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:29:21,009 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:21,009 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:29:21,009 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:29:21,009 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:29:21,009 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:29:21,009 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:29:21,009 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:29:21,010 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:29:21,010 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:29:21,191 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:29:21,199 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:29:21,201 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:29:21,202 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:29:21,202 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:29:21,203 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52830aad-c861-4967-ba99-48e38456d080/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/msg_sender_1.sol_0_no_adts_000.smt2
[2025-05-07 17:29:21,204 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:29:21,206 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:29:21,382 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52830aad-c861-4967-ba99-48e38456d080/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/msg_sender_1.sol_0_no_adts_000.smt2
[2025-05-07 17:29:21,384 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:29:21,385 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:29:21,386 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:29:21,386 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:29:21,386 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:29:21,388 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,412 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21 Unit
[2025-05-07 17:29:21,412 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:29:21,412 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:29:21,413 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:29:21,413 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:29:21,424 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,424 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,444 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,444 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,446 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,447 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,448 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,449 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,450 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,458 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:29:21,459 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:29:21,459 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:29:21,459 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:29:21,460 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (1/1) ...
[2025-05-07 17:29:21,462 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:21,470 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:29:21,478 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 17:29:21,480 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 17:29:21,488 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:29:21,488 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:29:21,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:29:21,488 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:29:21,488 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:29:21,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:29:21,489 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_21_0 given in one single declaration
[2025-05-07 17:29:21,489 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_21_0
[2025-05-07 17:29:21,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_21_0
[2025-05-07 17:29:21,489 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_21_0 given in one single declaration
[2025-05-07 17:29:21,489 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_21_0
[2025-05-07 17:29:21,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_21_0
[2025-05-07 17:29:21,489 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_10_C_21_0 given in one single declaration
[2025-05-07 17:29:21,489 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_10_C_21_0
[2025-05-07 17:29:21,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_10_C_21_0
[2025-05-07 17:29:21,489 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_12_C_21_0 given in one single declaration
[2025-05-07 17:29:21,489 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_12_C_21_0
[2025-05-07 17:29:21,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_12_C_21_0
[2025-05-07 17:29:21,489 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_11_C_21_0 given in one single declaration
[2025-05-07 17:29:21,489 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_11_C_21_0
[2025-05-07 17:29:21,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_11_C_21_0
[2025-05-07 17:29:21,489 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_13_C_21_0 given in one single declaration
[2025-05-07 17:29:21,489 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_13_C_21_0
[2025-05-07 17:29:21,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_13_C_21_0
[2025-05-07 17:29:21,490 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__20_21_0 given in one single declaration
[2025-05-07 17:29:21,490 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__20_21_0 given in one single declaration
[2025-05-07 17:29:21,490 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__20_21_0 given in one single declaration
[2025-05-07 17:29:21,490 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__20_21_0 given in one single declaration
[2025-05-07 17:29:21,490 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_19_21_0 given in one single declaration
[2025-05-07 17:29:21,490 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_19_21_0
[2025-05-07 17:29:21,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_19_21_0
[2025-05-07 17:29:21,490 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__20_21_0 given in one single declaration
[2025-05-07 17:29:21,490 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__20_21_0
[2025-05-07 17:29:21,490 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__20_21_0 given in one single declaration
[2025-05-07 17:29:21,491 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__20_21_0
[2025-05-07 17:29:21,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__20_21_0
[2025-05-07 17:29:21,491 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:29:21,491 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:29:21,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:29:21,584 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:29:21,585 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:29:21,718 INFO  L?                        ?]: Removed 115 outVars from TransFormulas that were not future-live.
[2025-05-07 17:29:21,718 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:29:21,726 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:29:21,727 INFO  L312             CfgBuilder]: Removed 7 assume(true) statements.
[2025-05-07 17:29:21,727 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:21 BoogieIcfgContainer
[2025-05-07 17:29:21,727 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:29:21,729 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:29:21,729 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:29:21,731 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:29:21,731 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:21" (1/3) ...
[2025-05-07 17:29:21,732 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea6b612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:29:21, skipping insertion in model container
[2025-05-07 17:29:21,732 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:21" (2/3) ...
[2025-05-07 17:29:21,732 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea6b612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:29:21, skipping insertion in model container
[2025-05-07 17:29:21,732 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:21" (3/3) ...
[2025-05-07 17:29:21,733 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:29:21,743 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:29:21,746 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 16 procedures, 62 locations, 89 edges, 16 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:29:21,774 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:29:21,782 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;@4fbb86e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:29:21,782 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:29:21,785 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 62 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 29 states have internal predecessors, (29), 19 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20)
[2025-05-07 17:29:21,791 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:21,791 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:21,792 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 17:29:21,792 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:21,796 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:21,796 INFO  L85        PathProgramCache]: Analyzing trace with hash -1591662981, now seen corresponding path program 1 times
[2025-05-07 17:29:21,801 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:21,801 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193393740]
[2025-05-07 17:29:21,802 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:21,802 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:21,852 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:21,907 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:21,907 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:21,907 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:22,118 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 17:29:22,118 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:22,119 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193393740]
[2025-05-07 17:29:22,119 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193393740] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:22,119 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:22,122 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:29:22,123 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321392028]
[2025-05-07 17:29:22,124 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:22,128 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:29:22,128 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:22,153 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:29:22,154 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:29:22,155 INFO  L87              Difference]: Start difference. First operand  has 62 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 29 states have internal predecessors, (29), 19 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) 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 17:29:22,270 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:22,271 INFO  L93              Difference]: Finished difference Result 50 states and 54 transitions.
[2025-05-07 17:29:22,272 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:29:22,273 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 17:29:22,274 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:22,277 INFO  L225             Difference]: With dead ends: 50
[2025-05-07 17:29:22,277 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:29:22,278 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:29:22,282 INFO  L437           NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:29:22,283 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 333 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:29:22,293 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:29:22,298 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:29:22,298 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 17:29:22,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:29:22,301 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:29:22,301 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:22,301 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:29:22,301 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 17:29:22,301 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:29:22,301 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:29:22,303 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:29:22,303 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:29:22,306 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2025-05-07 17:29:22,308 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:29:22,310 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:29:22 BoogieIcfgContainer
[2025-05-07 17:29:22,310 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:29:22,311 INFO  L158              Benchmark]: Toolchain (without parser) took 925.56ms. Allocated memory is still 234.9MB. Free memory was 156.3MB in the beginning and 187.3MB in the end (delta: -31.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:22,311 INFO  L158              Benchmark]: SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 171.5MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:22,311 INFO  L158              Benchmark]: ChcToBoogie took 26.30ms. Allocated memory is still 234.9MB. Free memory was 156.3MB in the beginning and 154.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:22,311 INFO  L158              Benchmark]: Boogie Preprocessor took 46.09ms. Allocated memory is still 234.9MB. Free memory was 154.3MB in the beginning and 151.6MB in the end (delta: 2.7MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:29:22,312 INFO  L158              Benchmark]: RCFGBuilder took 267.95ms. Allocated memory is still 234.9MB. Free memory was 151.5MB in the beginning and 129.4MB in the end (delta: 22.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:29:22,312 INFO  L158              Benchmark]: TraceAbstraction took 581.58ms. Allocated memory is still 234.9MB. Free memory was 128.8MB in the beginning and 187.3MB in the end (delta: -58.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:22,313 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 171.5MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 26.30ms. Allocated memory is still 234.9MB. Free memory was 156.3MB in the beginning and 154.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 46.09ms. Allocated memory is still 234.9MB. Free memory was 154.3MB in the beginning and 151.6MB in the end (delta: 2.7MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 267.95ms. Allocated memory is still 234.9MB. Free memory was 151.5MB in the beginning and 129.4MB in the end (delta: 22.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 581.58ms. Allocated memory is still 234.9MB. Free memory was 128.8MB in the beginning and 187.3MB in the end (delta: -58.5MB). 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 16 procedures, 62 locations, 89 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 333 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 283 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 50 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 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 17:29:22,323 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
