./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/invariants/loop_basic.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:51,210 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:51,262 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c95ca8-27c6-4170-a78d-c23419a64806/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:51,266 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:51,266 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:51,283 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:51,283 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:51,283 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:51,284 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:51,284 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:51,284 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:51,284 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:51,284 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:51,284 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:51,284 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:51,285 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:51,285 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:51,285 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:51,285 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:51,285 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:51,285 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:51,285 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:51,285 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:51,285 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:51,285 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:51,286 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:51,286 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:51,513 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:51,519 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:51,521 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:51,522 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:51,522 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:51,523 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c95ca8-27c6-4170-a78d-c23419a64806/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/invariants/loop_basic.sol_0_no_adts_000.smt2
[2025-05-07 17:27:51,524 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:51,527 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:51,761 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c95ca8-27c6-4170-a78d-c23419a64806/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/invariants/loop_basic.sol_0_no_adts_000.smt2
[2025-05-07 17:27:51,764 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:51,765 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:51,766 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:51,766 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:51,767 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:51,769 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,806 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51 Unit
[2025-05-07 17:27:51,806 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:51,807 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:51,808 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:51,808 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:51,822 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,823 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,853 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,853 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,860 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,862 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,864 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,867 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,869 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,883 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:51,884 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:51,884 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:51,884 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:51,884 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (1/1) ...
[2025-05-07 17:27:51,886 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:51,895 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:51,904 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:27:51,907 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:27:51,916 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:51,916 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:51,916 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:51,916 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:27:51,916 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:27:51,916 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:27:51,916 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_Simple_29_0 given in one single declaration
[2025-05-07 17:27:51,916 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_Simple_29_0
[2025-05-07 17:27:51,916 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_Simple_29_0
[2025-05-07 17:27:51,916 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_Simple_29_0 given in one single declaration
[2025-05-07 17:27:51,916 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_Simple_29_0
[2025-05-07 17:27:51,916 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_Simple_29_0
[2025-05-07 17:27:51,916 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_16_Simple_29_0 given in one single declaration
[2025-05-07 17:27:51,916 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_16_Simple_29_0
[2025-05-07 17:27:51,917 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_16_Simple_29_0
[2025-05-07 17:27:51,917 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_13_Simple_29_0 given in one single declaration
[2025-05-07 17:27:51,917 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_13_Simple_29_0
[2025-05-07 17:27:51,917 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_13_Simple_29_0
[2025-05-07 17:27:51,917 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_15_Simple_29_0 given in one single declaration
[2025-05-07 17:27:51,917 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_15_Simple_29_0
[2025-05-07 17:27:51,917 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_15_Simple_29_0
[2025-05-07 17:27:51,917 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_14_Simple_29_0 given in one single declaration
[2025-05-07 17:27:51,917 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_14_Simple_29_0
[2025-05-07 17:27:51,917 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_14_Simple_29_0
[2025-05-07 17:27:51,917 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__28_29_0 given in one single declaration
[2025-05-07 17:27:51,917 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__28_29_0
[2025-05-07 17:27:51,917 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__28_29_0
[2025-05-07 17:27:51,917 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__28_29_0 given in one single declaration
[2025-05-07 17:27:51,917 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__28_29_0
[2025-05-07 17:27:51,917 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__28_29_0
[2025-05-07 17:27:51,917 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__28_29_0 given in one single declaration
[2025-05-07 17:27:51,917 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__28_29_0
[2025-05-07 17:27:51,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__28_29_0
[2025-05-07 17:27:51,918 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_f_27_29_0 given in one single declaration
[2025-05-07 17:27:51,918 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_f_27_29_0
[2025-05-07 17:27:51,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_f_27_29_0
[2025-05-07 17:27:51,918 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_while_header_f_20_29_0 given in one single declaration
[2025-05-07 17:27:51,918 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_while_header_f_20_29_0
[2025-05-07 17:27:51,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_while_header_f_20_29_0
[2025-05-07 17:27:51,918 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_27_29_0 given in one single declaration
[2025-05-07 17:27:51,918 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_27_29_0
[2025-05-07 17:27:51,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_27_29_0
[2025-05-07 17:27:51,918 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__28_29_0 given in one single declaration
[2025-05-07 17:27:51,918 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__28_29_0
[2025-05-07 17:27:51,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__28_29_0
[2025-05-07 17:27:51,918 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_while_body_f_19_29_0 given in one single declaration
[2025-05-07 17:27:51,918 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_while_body_f_19_29_0
[2025-05-07 17:27:51,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_while_body_f_19_29_0
[2025-05-07 17:27:51,918 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__28_29_0 given in one single declaration
[2025-05-07 17:27:51,919 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__28_29_0
[2025-05-07 17:27:51,919 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__28_29_0
[2025-05-07 17:27:51,919 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__28_29_0 given in one single declaration
[2025-05-07 17:27:51,919 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__28_29_0
[2025-05-07 17:27:51,919 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__28_29_0
[2025-05-07 17:27:51,919 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:51,919 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:51,919 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:52,031 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:52,033 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:52,190 INFO  L?                        ?]: Removed 126 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:52,190 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:52,198 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:52,198 INFO  L312             CfgBuilder]: Removed 7 assume(true) statements.
[2025-05-07 17:27:52,199 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:52 BoogieIcfgContainer
[2025-05-07 17:27:52,199 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:52,201 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:52,201 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:52,204 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:52,204 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:51" (1/3) ...
[2025-05-07 17:27:52,204 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445a7aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:52, skipping insertion in model container
[2025-05-07 17:27:52,204 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:51" (2/3) ...
[2025-05-07 17:27:52,204 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445a7aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:52, skipping insertion in model container
[2025-05-07 17:27:52,205 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:52" (3/3) ...
[2025-05-07 17:27:52,205 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:52,216 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:52,218 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 19 procedures, 75 locations, 108 edges, 19 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:52,248 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:52,268 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;@20f0a0d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:52,268 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:52,271 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 75 states, 32 states have (on average 1.125) internal successors, (36), 36 states have internal predecessors, (36), 23 states have call successors, (24), 18 states have call predecessors, (24), 18 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24)
[2025-05-07 17:27:52,277 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2025-05-07 17:27:52,277 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:52,278 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:52,278 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:52,281 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:52,282 INFO  L85        PathProgramCache]: Analyzing trace with hash 1981514857, now seen corresponding path program 1 times
[2025-05-07 17:27:52,287 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:52,287 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411861347]
[2025-05-07 17:27:52,287 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:52,287 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:52,331 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes.
[2025-05-07 17:27:52,379 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements.
[2025-05-07 17:27:52,380 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:52,380 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:52,672 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:52,672 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:52,672 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411861347]
[2025-05-07 17:27:52,673 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411861347] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:52,673 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:52,675 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:52,676 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860138723]
[2025-05-07 17:27:52,676 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:52,680 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:52,680 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:52,709 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:52,710 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:52,712 INFO  L87              Difference]: Start difference. First operand  has 75 states, 32 states have (on average 1.125) internal successors, (36), 36 states have internal predecessors, (36), 23 states have call successors, (24), 18 states have call predecessors, (24), 18 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16)
[2025-05-07 17:27:52,799 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:52,799 INFO  L93              Difference]: Finished difference Result 81 states and 92 transitions.
[2025-05-07 17:27:52,801 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:52,802 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 59
[2025-05-07 17:27:52,802 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:52,807 INFO  L225             Difference]: With dead ends: 81
[2025-05-07 17:27:52,807 INFO  L226             Difference]: Without dead ends: 77
[2025-05-07 17:27:52,809 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:52,811 INFO  L437           NwaCegarLoop]: 78 mSDtfsCounter, 1 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:52,812 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 376 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:52,822 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2025-05-07 17:27:52,837 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71.
[2025-05-07 17:27:52,838 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 31 states have (on average 1.064516129032258) internal successors, (33), 33 states have internal predecessors, (33), 21 states have call successors, (22), 18 states have call predecessors, (22), 18 states have return successors, (22), 19 states have call predecessors, (22), 21 states have call successors, (22)
[2025-05-07 17:27:52,840 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions.
[2025-05-07 17:27:52,841 INFO  L79                 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 59
[2025-05-07 17:27:52,842 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:52,842 INFO  L485      AbstractCegarLoop]: Abstraction has 71 states and 77 transitions.
[2025-05-07 17:27:52,842 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16)
[2025-05-07 17:27:52,842 INFO  L278                IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions.
[2025-05-07 17:27:52,844 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2025-05-07 17:27:52,844 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:52,844 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:52,844 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:52,844 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:52,845 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:52,845 INFO  L85        PathProgramCache]: Analyzing trace with hash -1584322075, now seen corresponding path program 1 times
[2025-05-07 17:27:52,845 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:52,845 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713859096]
[2025-05-07 17:27:52,845 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:52,845 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:52,883 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes.
[2025-05-07 17:27:52,901 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements.
[2025-05-07 17:27:52,901 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:52,901 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:53,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:53,143 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:53,143 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713859096]
[2025-05-07 17:27:53,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713859096] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:53,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:53,143 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:53,143 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700781891]
[2025-05-07 17:27:53,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:53,145 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:53,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:53,145 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:53,146 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:53,146 INFO  L87              Difference]: Start difference. First operand 71 states and 77 transitions. Second operand  has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16)
[2025-05-07 17:27:53,185 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:53,185 INFO  L93              Difference]: Finished difference Result 73 states and 79 transitions.
[2025-05-07 17:27:53,186 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:53,186 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 59
[2025-05-07 17:27:53,186 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:53,187 INFO  L225             Difference]: With dead ends: 73
[2025-05-07 17:27:53,187 INFO  L226             Difference]: Without dead ends: 73
[2025-05-07 17:27:53,187 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:53,188 INFO  L437           NwaCegarLoop]: 74 mSDtfsCounter, 1 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:53,188 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 212 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:53,188 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2025-05-07 17:27:53,192 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2025-05-07 17:27:53,193 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 73 states, 32 states have (on average 1.0625) internal successors, (34), 34 states have internal predecessors, (34), 21 states have call successors, (22), 18 states have call predecessors, (22), 19 states have return successors, (23), 20 states have call predecessors, (23), 21 states have call successors, (23)
[2025-05-07 17:27:53,193 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions.
[2025-05-07 17:27:53,194 INFO  L79                 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 59
[2025-05-07 17:27:53,194 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:53,194 INFO  L485      AbstractCegarLoop]: Abstraction has 73 states and 79 transitions.
[2025-05-07 17:27:53,194 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16)
[2025-05-07 17:27:53,194 INFO  L278                IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions.
[2025-05-07 17:27:53,195 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2025-05-07 17:27:53,195 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:53,195 INFO  L218           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:53,195 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:53,196 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:53,196 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:53,196 INFO  L85        PathProgramCache]: Analyzing trace with hash 512678272, now seen corresponding path program 1 times
[2025-05-07 17:27:53,196 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:53,196 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585064319]
[2025-05-07 17:27:53,196 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:53,196 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:53,224 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes.
[2025-05-07 17:27:53,252 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements.
[2025-05-07 17:27:53,252 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:53,252 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:53,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2025-05-07 17:27:53,423 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:53,423 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585064319]
[2025-05-07 17:27:53,423 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585064319] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:53,423 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:53,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2025-05-07 17:27:53,423 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532467802]
[2025-05-07 17:27:53,423 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:53,424 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2025-05-07 17:27:53,424 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:53,424 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2025-05-07 17:27:53,425 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2025-05-07 17:27:53,425 INFO  L87              Difference]: Start difference. First operand 73 states and 79 transitions. Second operand  has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 11 states have internal predecessors, (30), 5 states have call successors, (18), 1 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:27:53,536 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:53,536 INFO  L93              Difference]: Finished difference Result 77 states and 83 transitions.
[2025-05-07 17:27:53,536 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2025-05-07 17:27:53,537 INFO  L79                 Accepts]: Start accepts. Automaton has  has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 11 states have internal predecessors, (30), 5 states have call successors, (18), 1 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 5 states have call successors, (18) Word has length 67
[2025-05-07 17:27:53,537 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:53,537 INFO  L225             Difference]: With dead ends: 77
[2025-05-07 17:27:53,537 INFO  L226             Difference]: Without dead ends: 77
[2025-05-07 17:27:53,537 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132
[2025-05-07 17:27:53,538 INFO  L437           NwaCegarLoop]: 68 mSDtfsCounter, 2 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:53,538 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 656 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:53,539 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2025-05-07 17:27:53,542 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77.
[2025-05-07 17:27:53,542 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 36 states have internal predecessors, (36), 21 states have call successors, (22), 18 states have call predecessors, (22), 21 states have return successors, (25), 22 states have call predecessors, (25), 21 states have call successors, (25)
[2025-05-07 17:27:53,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions.
[2025-05-07 17:27:53,543 INFO  L79                 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 67
[2025-05-07 17:27:53,543 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:53,543 INFO  L485      AbstractCegarLoop]: Abstraction has 77 states and 83 transitions.
[2025-05-07 17:27:53,543 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 11 states have internal predecessors, (30), 5 states have call successors, (18), 1 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:27:53,543 INFO  L278                IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions.
[2025-05-07 17:27:53,544 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2025-05-07 17:27:53,544 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:53,544 INFO  L218           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:53,544 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:53,544 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:53,545 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:53,545 INFO  L85        PathProgramCache]: Analyzing trace with hash 54443884, now seen corresponding path program 1 times
[2025-05-07 17:27:53,545 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:53,545 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722735116]
[2025-05-07 17:27:53,545 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:53,545 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:53,569 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes.
[2025-05-07 17:27:53,586 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements.
[2025-05-07 17:27:53,586 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:53,586 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:54,030 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2025-05-07 17:27:54,030 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:54,030 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722735116]
[2025-05-07 17:27:54,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722735116] provided 0 perfect and 1 imperfect interpolant sequences
[2025-05-07 17:27:54,030 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163700042]
[2025-05-07 17:27:54,031 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:54,031 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:27:54,032 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:54,034 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-05-07 17:27:54,035 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-05-07 17:27:54,213 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes.
[2025-05-07 17:27:54,315 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements.
[2025-05-07 17:27:54,315 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:54,315 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:54,319 INFO  L256         TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 24 conjuncts are in the unsatisfiable core
[2025-05-07 17:27:54,327 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-05-07 17:27:54,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2025-05-07 17:27:54,425 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-05-07 17:27:54,425 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163700042] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:54,425 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-05-07 17:27:54,425 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15
[2025-05-07 17:27:54,425 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119598877]
[2025-05-07 17:27:54,425 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:54,426 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:54,426 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:54,426 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:54,426 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210
[2025-05-07 17:27:54,426 INFO  L87              Difference]: Start difference. First operand 77 states and 83 transitions. Second operand  has 8 states, 5 states have (on average 6.2) internal successors, (31), 8 states have internal predecessors, (31), 6 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18)
[2025-05-07 17:27:54,497 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:54,497 INFO  L93              Difference]: Finished difference Result 43 states and 47 transitions.
[2025-05-07 17:27:54,497 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2025-05-07 17:27:54,498 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 5 states have (on average 6.2) internal successors, (31), 8 states have internal predecessors, (31), 6 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 67
[2025-05-07 17:27:54,498 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:54,498 INFO  L225             Difference]: With dead ends: 43
[2025-05-07 17:27:54,498 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:54,498 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240
[2025-05-07 17:27:54,499 INFO  L437           NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:54,499 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 211 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:54,499 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:54,499 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:54,499 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:27:54,499 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:54,499 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67
[2025-05-07 17:27:54,500 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:54,500 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:54,500 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 5 states have (on average 6.2) internal successors, (31), 8 states have internal predecessors, (31), 6 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18)
[2025-05-07 17:27:54,500 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:54,500 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:54,502 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:54,508 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-05-07 17:27:54,702 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:27:54,705 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2025-05-07 17:27:54,706 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:54,708 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:54 BoogieIcfgContainer
[2025-05-07 17:27:54,708 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:54,709 INFO  L158              Benchmark]: Toolchain (without parser) took 2943.56ms. Allocated memory is still 234.9MB. Free memory was 154.7MB in the beginning and 118.1MB in the end (delta: 36.6MB). Peak memory consumption was 60.6MB. Max. memory is 33.6GB.
[2025-05-07 17:27:54,709 INFO  L158              Benchmark]: SmtParser took 0.28ms. Allocated memory is still 234.9MB. Free memory is still 172.9MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:54,709 INFO  L158              Benchmark]: ChcToBoogie took 40.74ms. Allocated memory is still 234.9MB. Free memory was 154.7MB in the beginning and 152.5MB in the end (delta: 2.2MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:54,709 INFO  L158              Benchmark]: Boogie Preprocessor took 75.72ms. Allocated memory is still 234.9MB. Free memory was 152.4MB in the beginning and 149.5MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:54,709 INFO  L158              Benchmark]: RCFGBuilder took 315.39ms. Allocated memory is still 234.9MB. Free memory was 149.5MB in the beginning and 124.9MB in the end (delta: 24.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:54,710 INFO  L158              Benchmark]: TraceAbstraction took 2507.44ms. Allocated memory is still 234.9MB. Free memory was 124.3MB in the beginning and 118.1MB in the end (delta: 6.3MB). Peak memory consumption was 27.0MB. Max. memory is 33.6GB.
[2025-05-07 17:27:54,710 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.28ms. Allocated memory is still 234.9MB. Free memory is still 172.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 40.74ms. Allocated memory is still 234.9MB. Free memory was 154.7MB in the beginning and 152.5MB in the end (delta: 2.2MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 75.72ms. Allocated memory is still 234.9MB. Free memory was 152.4MB in the beginning and 149.5MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 315.39ms. Allocated memory is still 234.9MB. Free memory was 149.5MB in the beginning and 124.9MB in the end (delta: 24.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 2507.44ms. Allocated memory is still 234.9MB. Free memory was 124.3MB in the beginning and 118.1MB in the end (delta: 6.3MB). Peak memory consumption was 27.0MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 19 procedures, 75 locations, 108 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 1455 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1196 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 259 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=3, InterpolantAutomatonStates: 30, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 1 NumberOfNonLiveVariables, 855 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 7/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:27:54,719 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
