./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/string_literal_comparison_1.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:29:22,608 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:29:22,645 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740db1-6c3a-4dab-830a-8378f4a47733/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:29:22,648 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:29:22,648 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:29:22,661 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:29:22,662 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:29:22,662 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:29:22,662 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:29:22,662 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:29:22,662 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:29:22,662 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:29:22,662 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:29:22,662 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:29:22,662 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:29:22,662 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:29:22,663 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:29:22,663 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:29:22,663 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:22,663 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:29:22,663 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:29:22,663 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:29:22,663 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:29:22,663 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:29:22,663 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:29:22,664 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:29:22,664 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:29:22,847 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:29:22,855 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:29:22,858 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:29:22,859 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:29:22,859 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:29:22,860 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740db1-6c3a-4dab-830a-8378f4a47733/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/string_literal_comparison_1.sol_0_no_adts_000.smt2
[2025-05-07 17:29:22,862 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:29:22,865 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:29:23,157 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740db1-6c3a-4dab-830a-8378f4a47733/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/string_literal_comparison_1.sol_0_no_adts_000.smt2
[2025-05-07 17:29:23,161 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:29:23,162 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:29:23,163 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:29:23,163 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:29:23,163 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:29:23,165 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,196 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23 Unit
[2025-05-07 17:29:23,196 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:29:23,197 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:29:23,197 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:29:23,197 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:29:23,212 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,212 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,234 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,234 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,238 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,239 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,241 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,243 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,244 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,255 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:29:23,256 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:29:23,256 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:29:23,256 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:29:23,257 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (1/1) ...
[2025-05-07 17:29:23,258 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:23,267 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:29:23,277 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:29:23,279 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:29:23,296 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:29:23,296 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:29:23,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:29:23,297 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_4_0 given in one single declaration
[2025-05-07 17:29:23,297 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_4_0
[2025-05-07 17:29:23,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_4_0
[2025-05-07 17:29:23,297 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_33_0 given in one single declaration
[2025-05-07 17:29:23,297 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_33_0
[2025-05-07 17:29:23,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_33_0
[2025-05-07 17:29:23,297 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_33_0 given in one single declaration
[2025-05-07 17:29:23,297 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_33_0
[2025-05-07 17:29:23,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_33_0
[2025-05-07 17:29:23,298 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_14_C_33_0 given in one single declaration
[2025-05-07 17:29:23,298 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_14_C_33_0
[2025-05-07 17:29:23,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_14_C_33_0
[2025-05-07 17:29:23,298 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_11_C_33_0 given in one single declaration
[2025-05-07 17:29:23,298 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_11_C_33_0
[2025-05-07 17:29:23,298 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_11_C_33_0
[2025-05-07 17:29:23,298 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_13_C_33_0 given in one single declaration
[2025-05-07 17:29:23,298 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_13_C_33_0
[2025-05-07 17:29:23,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_13_C_33_0
[2025-05-07 17:29:23,299 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_12_C_33_0 given in one single declaration
[2025-05-07 17:29:23,299 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_12_C_33_0
[2025-05-07 17:29:23,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_12_C_33_0
[2025-05-07 17:29:23,299 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:23,299 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__32_33_0
[2025-05-07 17:29:23,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__32_33_0
[2025-05-07 17:29:23,299 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:23,299 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__32_33_0
[2025-05-07 17:29:23,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__32_33_0
[2025-05-07 17:29:23,300 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:23,300 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__32_33_0
[2025-05-07 17:29:23,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__32_33_0
[2025-05-07 17:29:23,300 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_31_33_0 given in one single declaration
[2025-05-07 17:29:23,300 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_31_33_0
[2025-05-07 17:29:23,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_31_33_0
[2025-05-07 17:29:23,300 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:23,300 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__32_33_0
[2025-05-07 17:29:23,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__32_33_0
[2025-05-07 17:29:23,301 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:23,301 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__32_33_0
[2025-05-07 17:29:23,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__32_33_0
[2025-05-07 17:29:23,301 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:23,301 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__32_33_0
[2025-05-07 17:29:23,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__32_33_0
[2025-05-07 17:29:23,301 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:23,301 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__32_33_0
[2025-05-07 17:29:23,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__32_33_0
[2025-05-07 17:29:23,301 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:29:23,301 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:29:23,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:29:23,409 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:29:23,411 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:29:23,604 INFO  L?                        ?]: Removed 144 outVars from TransFormulas that were not future-live.
[2025-05-07 17:29:23,605 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:29:23,615 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:29:23,615 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:29:23,616 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:23 BoogieIcfgContainer
[2025-05-07 17:29:23,616 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:29:23,617 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:29:23,618 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:29:23,620 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:29:23,620 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:23" (1/3) ...
[2025-05-07 17:29:23,621 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c18c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:29:23, skipping insertion in model container
[2025-05-07 17:29:23,621 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:23" (2/3) ...
[2025-05-07 17:29:23,622 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c18c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:29:23, skipping insertion in model container
[2025-05-07 17:29:23,622 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:23" (3/3) ...
[2025-05-07 17:29:23,623 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:29:23,635 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:29:23,638 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 17 procedures, 66 locations, 97 edges, 17 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:29:23,687 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:29:23,696 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;@be2c9b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:29:23,696 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:29:23,699 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22)
[2025-05-07 17:29:23,705 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:23,705 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:23,706 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:29:23,706 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:23,709 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:23,710 INFO  L85        PathProgramCache]: Analyzing trace with hash -1127609060, now seen corresponding path program 1 times
[2025-05-07 17:29:23,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:23,715 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241716847]
[2025-05-07 17:29:23,715 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:23,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:23,763 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:23,817 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:23,817 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:23,817 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:24,060 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:29:24,061 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:24,061 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241716847]
[2025-05-07 17:29:24,061 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241716847] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:24,062 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:24,064 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-05-07 17:29:24,066 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767294960]
[2025-05-07 17:29:24,067 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:24,070 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-05-07 17:29:24,070 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:24,098 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-05-07 17:29:24,099 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:29:24,101 INFO  L87              Difference]: Start difference. First operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22) Second operand  has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:29:24,162 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:24,162 INFO  L93              Difference]: Finished difference Result 65 states and 72 transitions.
[2025-05-07 17:29:24,163 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-05-07 17:29:24,165 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:29:24,165 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:24,172 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:29:24,172 INFO  L226             Difference]: Without dead ends: 60
[2025-05-07 17:29:24,174 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:29:24,176 INFO  L437           NwaCegarLoop]: 66 mSDtfsCounter, 1 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:29:24,177 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 251 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:24,189 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2025-05-07 17:29:24,203 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58.
[2025-05-07 17:29:24,204 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 17 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 16 states have call predecessors, (18), 17 states have call successors, (18)
[2025-05-07 17:29:24,207 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions.
[2025-05-07 17:29:24,208 INFO  L79                 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 51
[2025-05-07 17:29:24,209 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:24,209 INFO  L485      AbstractCegarLoop]: Abstraction has 58 states and 62 transitions.
[2025-05-07 17:29:24,209 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:29:24,209 INFO  L278                IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions.
[2025-05-07 17:29:24,210 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:24,211 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:24,211 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:29:24,211 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:29:24,211 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:24,212 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:24,212 INFO  L85        PathProgramCache]: Analyzing trace with hash -1856739424, now seen corresponding path program 1 times
[2025-05-07 17:29:24,212 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:24,212 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446577325]
[2025-05-07 17:29:24,212 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:24,212 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:24,237 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:24,255 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:24,255 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:24,255 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:24,394 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:29:24,395 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:24,395 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446577325]
[2025-05-07 17:29:24,395 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446577325] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:24,395 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:24,395 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:29:24,395 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291612738]
[2025-05-07 17:29:24,395 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:24,396 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:29:24,396 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:24,397 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:29:24,397 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:29:24,397 INFO  L87              Difference]: Start difference. First operand 58 states and 62 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:29:24,438 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:24,438 INFO  L93              Difference]: Finished difference Result 62 states and 66 transitions.
[2025-05-07 17:29:24,439 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:29:24,439 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:29:24,439 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:24,440 INFO  L225             Difference]: With dead ends: 62
[2025-05-07 17:29:24,440 INFO  L226             Difference]: Without dead ends: 62
[2025-05-07 17:29:24,440 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:29:24,441 INFO  L437           NwaCegarLoop]: 60 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:29:24,441 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 290 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:24,442 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2025-05-07 17:29:24,447 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2025-05-07 17:29:24,447 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 17 states have call successors, (18), 15 states have call predecessors, (18), 17 states have return successors, (20), 18 states have call predecessors, (20), 17 states have call successors, (20)
[2025-05-07 17:29:24,448 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions.
[2025-05-07 17:29:24,448 INFO  L79                 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 51
[2025-05-07 17:29:24,448 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:24,448 INFO  L485      AbstractCegarLoop]: Abstraction has 62 states and 66 transitions.
[2025-05-07 17:29:24,448 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:29:24,448 INFO  L278                IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions.
[2025-05-07 17:29:24,449 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:24,449 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:24,449 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:29:24,449 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:29:24,449 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:24,450 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:24,450 INFO  L85        PathProgramCache]: Analyzing trace with hash -954409040, now seen corresponding path program 1 times
[2025-05-07 17:29:24,450 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:24,450 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569577065]
[2025-05-07 17:29:24,450 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:24,450 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:24,470 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:24,488 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:24,488 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:24,488 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:24,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:29:24,594 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:24,594 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569577065]
[2025-05-07 17:29:24,594 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569577065] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:24,594 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:24,594 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:29:24,595 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883215671]
[2025-05-07 17:29:24,595 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:24,595 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:29:24,595 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:24,595 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:29:24,595 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:29:24,596 INFO  L87              Difference]: Start difference. First operand 62 states and 66 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:29:24,659 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:24,660 INFO  L93              Difference]: Finished difference Result 32 states and 32 transitions.
[2025-05-07 17:29:24,660 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:29:24,660 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), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:29:24,660 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:24,661 INFO  L225             Difference]: With dead ends: 32
[2025-05-07 17:29:24,661 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:29:24,661 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:29:24,661 INFO  L437           NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:29:24,661 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 180 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:24,662 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:29:24,662 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:29:24,662 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:29:24,662 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:29:24,662 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:29:24,662 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:24,662 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:29:24,662 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), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:29:24,662 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:29:24,663 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:29:24,664 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:29:24,665 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:29:24,667 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:29:24,668 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:29:24,670 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:29:24 BoogieIcfgContainer
[2025-05-07 17:29:24,670 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:29:24,671 INFO  L158              Benchmark]: Toolchain (without parser) took 1509.22ms. Allocated memory is still 234.9MB. Free memory was 154.6MB in the beginning and 104.3MB in the end (delta: 50.3MB). Peak memory consumption was 59.5MB. Max. memory is 33.6GB.
[2025-05-07 17:29:24,671 INFO  L158              Benchmark]: SmtParser took 0.33ms. Allocated memory is still 234.9MB. Free memory is still 174.0MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:24,671 INFO  L158              Benchmark]: ChcToBoogie took 33.82ms. Allocated memory is still 234.9MB. Free memory was 154.6MB in the beginning and 152.2MB in the end (delta: 2.3MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:29:24,671 INFO  L158              Benchmark]: Boogie Preprocessor took 58.57ms. Allocated memory is still 234.9MB. Free memory was 152.2MB in the beginning and 149.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:24,671 INFO  L158              Benchmark]: RCFGBuilder took 359.92ms. Allocated memory is still 234.9MB. Free memory was 149.2MB in the beginning and 123.7MB in the end (delta: 25.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:29:24,672 INFO  L158              Benchmark]: TraceAbstraction took 1052.97ms. Allocated memory is still 234.9MB. Free memory was 123.1MB in the beginning and 104.3MB in the end (delta: 18.8MB). Peak memory consumption was 25.9MB. Max. memory is 33.6GB.
[2025-05-07 17:29:24,672 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.33ms. Allocated memory is still 234.9MB. Free memory is still 174.0MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 33.82ms. Allocated memory is still 234.9MB. Free memory was 154.6MB in the beginning and 152.2MB in the end (delta: 2.3MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 58.57ms. Allocated memory is still 234.9MB. Free memory was 152.2MB in the beginning and 149.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 359.92ms. Allocated memory is still 234.9MB. Free memory was 149.2MB in the beginning and 123.7MB in the end (delta: 25.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1052.97ms. Allocated memory is still 234.9MB. Free memory was 123.1MB in the beginning and 104.3MB in the end (delta: 18.8MB). Peak memory consumption was 25.9MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 17 procedures, 66 locations, 97 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 721 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 567 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 154 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:29:24,681 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
