./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-188.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:45,300 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:45,359 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb36aba-ba17-4162-9236-882abc93a753/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:45,363 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:45,364 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:45,401 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:45,402 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:45,402 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:45,403 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:45,403 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:45,404 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:45,404 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:45,405 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:45,405 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:45,405 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:45,405 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:45,406 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:45,406 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:45,406 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:45,406 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:45,406 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:45,406 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:45,406 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:45,406 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:45,406 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:45,407 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:45,407 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:45,765 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:45,777 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:45,780 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:45,783 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:45,783 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:45,785 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb36aba-ba17-4162-9236-882abc93a753/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-188.smt2
[2025-04-28 21:21:45,788 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:45,792 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:46,194 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb36aba-ba17-4162-9236-882abc93a753/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-188.smt2
[2025-04-28 21:21:46,198 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:46,201 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:46,203 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:46,203 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:46,203 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:46,206 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,249 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46 Unit
[2025-04-28 21:21:46,249 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:46,250 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:46,250 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:46,250 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:46,266 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,267 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,297 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,297 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,301 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,306 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,308 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,314 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,315 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,338 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:46,343 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:46,343 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:46,343 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:46,344 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (1/1) ...
[2025-04-28 21:21:46,351 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:46,365 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:46,379 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)
[2025-04-28 21:21:46,384 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-04-28 21:21:46,395 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:46,396 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:46,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:46,396 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-04-28 21:21:46,396 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-04-28 21:21:46,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-04-28 21:21:46,396 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_31_0 given in one single declaration
[2025-04-28 21:21:46,396 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_31_0
[2025-04-28 21:21:46,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_31_0
[2025-04-28 21:21:46,397 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_31_0 given in one single declaration
[2025-04-28 21:21:46,397 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_31_0
[2025-04-28 21:21:46,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_31_0
[2025-04-28 21:21:46,397 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_10_C_31_0 given in one single declaration
[2025-04-28 21:21:46,397 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_10_C_31_0
[2025-04-28 21:21:46,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_10_C_31_0
[2025-04-28 21:21:46,397 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_12_C_31_0 given in one single declaration
[2025-04-28 21:21:46,397 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_12_C_31_0
[2025-04-28 21:21:46,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_12_C_31_0
[2025-04-28 21:21:46,398 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_11_C_31_0 given in one single declaration
[2025-04-28 21:21:46,398 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_11_C_31_0
[2025-04-28 21:21:46,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_11_C_31_0
[2025-04-28 21:21:46,398 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_13_C_31_0 given in one single declaration
[2025-04-28 21:21:46,398 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_13_C_31_0
[2025-04-28 21:21:46,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_13_C_31_0
[2025-04-28 21:21:46,398 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__30_31_0 given in one single declaration
[2025-04-28 21:21:46,398 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__30_31_0
[2025-04-28 21:21:46,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__30_31_0
[2025-04-28 21:21:46,398 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__30_31_0 given in one single declaration
[2025-04-28 21:21:46,401 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__30_31_0
[2025-04-28 21:21:46,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__30_31_0
[2025-04-28 21:21:46,401 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__30_31_0 given in one single declaration
[2025-04-28 21:21:46,401 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__30_31_0
[2025-04-28 21:21:46,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__30_31_0
[2025-04-28 21:21:46,402 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__30_31_0 given in one single declaration
[2025-04-28 21:21:46,402 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__30_31_0
[2025-04-28 21:21:46,402 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__30_31_0
[2025-04-28 21:21:46,402 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_29_31_0 given in one single declaration
[2025-04-28 21:21:46,402 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_29_31_0
[2025-04-28 21:21:46,402 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_29_31_0
[2025-04-28 21:21:46,402 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__30_31_0 given in one single declaration
[2025-04-28 21:21:46,402 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__30_31_0
[2025-04-28 21:21:46,402 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__30_31_0
[2025-04-28 21:21:46,402 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__30_31_0 given in one single declaration
[2025-04-28 21:21:46,402 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__30_31_0
[2025-04-28 21:21:46,402 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__30_31_0
[2025-04-28 21:21:46,403 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:46,403 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:46,403 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:46,576 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:46,580 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:46,898 INFO  L?                        ?]: Removed 124 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:46,900 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:46,919 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:46,920 INFO  L312             CfgBuilder]: Removed 7 assume(true) statements.
[2025-04-28 21:21:46,920 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:46 BoogieIcfgContainer
[2025-04-28 21:21:46,920 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:46,927 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:46,927 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:46,932 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:46,932 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:46" (1/3) ...
[2025-04-28 21:21:46,933 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6f298e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:46, skipping insertion in model container
[2025-04-28 21:21:46,933 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:46" (2/3) ...
[2025-04-28 21:21:46,933 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6f298e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:46, skipping insertion in model container
[2025-04-28 21:21:46,933 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:46" (3/3) ...
[2025-04-28 21:21:46,935 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:46,952 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:46,955 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.
[2025-04-28 21:21:47,000 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:47,013 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;@2fb51f0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:47,013 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:47,017 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)
[2025-04-28 21:21:47,031 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-04-28 21:21:47,031 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:47,032 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]
[2025-04-28 21:21:47,032 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:47,040 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:47,042 INFO  L85        PathProgramCache]: Analyzing trace with hash -808300366, now seen corresponding path program 1 times
[2025-04-28 21:21:47,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:47,051 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954864201]
[2025-04-28 21:21:47,052 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:47,052 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:47,150 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-04-28 21:21:47,329 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-04-28 21:21:47,329 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:47,329 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:47,942 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:47,943 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:47,943 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954864201]
[2025-04-28 21:21:47,944 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954864201] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:47,944 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:47,947 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-04-28 21:21:47,949 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208577162]
[2025-04-28 21:21:47,950 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:47,957 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-04-28 21:21:47,957 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:48,043 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-04-28 21:21:48,045 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-04-28 21:21:48,048 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)
[2025-04-28 21:21:48,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:48,300 INFO  L93              Difference]: Finished difference Result 50 states and 54 transitions.
[2025-04-28 21:21:48,302 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-04-28 21:21:48,303 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
[2025-04-28 21:21:48,304 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:48,311 INFO  L225             Difference]: With dead ends: 50
[2025-04-28 21:21:48,311 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:48,313 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-04-28 21:21:48,319 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
[2025-04-28 21:21:48,320 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]
[2025-04-28 21:21:48,332 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:48,339 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:48,340 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)
[2025-04-28 21:21:48,345 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:48,346 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-04-28 21:21:48,346 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:48,346 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:48,347 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)
[2025-04-28 21:21:48,347 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:48,347 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:48,350 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:48,351 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:48,355 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2025-04-28 21:21:48,358 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:48,362 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:48 BoogieIcfgContainer
[2025-04-28 21:21:48,362 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:48,363 INFO  L158              Benchmark]: Toolchain (without parser) took 2162.94ms. Allocated memory is still 234.9MB. Free memory was 154.1MB in the beginning and 188.8MB in the end (delta: -34.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:48,363 INFO  L158              Benchmark]: SmtParser took 0.39ms. Allocated memory is still 234.9MB. Free memory is still 170.5MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:48,364 INFO  L158              Benchmark]: ChcToBoogie took 46.98ms. Allocated memory is still 234.9MB. Free memory was 154.1MB in the beginning and 152.1MB in the end (delta: 2.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:48,364 INFO  L158              Benchmark]: Boogie Preprocessor took 92.36ms. Allocated memory is still 234.9MB. Free memory was 152.1MB in the beginning and 149.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:48,365 INFO  L158              Benchmark]: RCFGBuilder took 577.42ms. Allocated memory is still 234.9MB. Free memory was 149.4MB in the beginning and 125.5MB in the end (delta: 23.9MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:48,365 INFO  L158              Benchmark]: TraceAbstraction took 1435.80ms. Allocated memory is still 234.9MB. Free memory was 125.0MB in the beginning and 188.8MB in the end (delta: -63.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:48,367 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.39ms. Allocated memory is still 234.9MB. Free memory is still 170.5MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 46.98ms. Allocated memory is still 234.9MB. Free memory was 154.1MB in the beginning and 152.1MB in the end (delta: 2.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 92.36ms. Allocated memory is still 234.9MB. Free memory was 152.1MB in the beginning and 149.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 577.42ms. Allocated memory is still 234.9MB. Free memory was 149.4MB in the beginning and 125.5MB in the end (delta: 23.9MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1435.80ms. Allocated memory is still 234.9MB. Free memory was 125.0MB in the beginning and 188.8MB in the end (delta: -63.9MB). 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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, 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, 0.1s 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, 0.2s SatisfiabilityAnalysisTime, 0.6s 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!
[2025-04-28 21:21:48,383 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
