./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice.sol_5_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:15,948 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:16,002 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_677b66e2-c9b6-4b8b-946b-0b3661093b75/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:16,006 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:16,006 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:16,023 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:16,024 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:16,024 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:16,024 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:16,024 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:16,024 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:16,024 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:16,025 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:16,025 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:16,025 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:16,025 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:16,025 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:16,025 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:16,025 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:16,025 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:16,025 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:16,025 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:16,026 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:16,026 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:16,026 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:16,026 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:16,026 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:16,229 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:16,236 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:16,237 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:16,238 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:16,238 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:16,239 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_677b66e2-c9b6-4b8b-946b-0b3661093b75/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice.sol_5_no_adts_000.smt2
[2025-05-07 17:27:16,240 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:16,242 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:16,485 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_677b66e2-c9b6-4b8b-946b-0b3661093b75/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice.sol_5_no_adts_000.smt2
[2025-05-07 17:27:16,488 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:16,489 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:16,489 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:16,489 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:16,489 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:16,492 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,541 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16 Unit
[2025-05-07 17:27:16,542 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:16,542 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:16,542 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:16,542 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:16,554 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,554 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,577 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,577 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,582 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,584 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,585 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,587 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,589 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,601 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:16,601 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:16,601 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:16,602 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:16,602 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (1/1) ...
[2025-05-07 17:27:16,604 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:16,617 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:16,627 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 17:27:16,629 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 17:27:16,638 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:16,638 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:16,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:16,638 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_12_0 given in one single declaration
[2025-05-07 17:27:16,638 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_12_0
[2025-05-07 17:27:16,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_12_0
[2025-05-07 17:27:16,638 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_63_0 given in one single declaration
[2025-05-07 17:27:16,638 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_63_0
[2025-05-07 17:27:16,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_63_0
[2025-05-07 17:27:16,639 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_63_0 given in one single declaration
[2025-05-07 17:27:16,639 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_63_0
[2025-05-07 17:27:16,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_63_0
[2025-05-07 17:27:16,639 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_15_C_63_0 given in one single declaration
[2025-05-07 17:27:16,639 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_15_C_63_0
[2025-05-07 17:27:16,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_15_C_63_0
[2025-05-07 17:27:16,639 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_17_C_63_0 given in one single declaration
[2025-05-07 17:27:16,639 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_17_C_63_0
[2025-05-07 17:27:16,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_17_C_63_0
[2025-05-07 17:27:16,639 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_16_C_63_0 given in one single declaration
[2025-05-07 17:27:16,639 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_16_C_63_0
[2025-05-07 17:27:16,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_16_C_63_0
[2025-05-07 17:27:16,639 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_18_C_63_0 given in one single declaration
[2025-05-07 17:27:16,639 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_18_C_63_0
[2025-05-07 17:27:16,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_18_C_63_0
[2025-05-07 17:27:16,639 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,639 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,640 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,640 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,640 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_61_63_0 given in one single declaration
[2025-05-07 17:27:16,640 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_61_63_0
[2025-05-07 17:27:16,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_61_63_0
[2025-05-07 17:27:16,640 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,640 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__62_63_0
[2025-05-07 17:27:16,640 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_bytes_tuple_0 given in one single declaration
[2025-05-07 17:27:16,640 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_bytes_tuple_0
[2025-05-07 17:27:16,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_bytes_tuple_0
[2025-05-07 17:27:16,641 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_header_bytes_tuple_0 given in one single declaration
[2025-05-07 17:27:16,641 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_header_bytes_tuple_0
[2025-05-07 17:27:16,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_header_bytes_tuple_0
[2025-05-07 17:27:16,641 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_loop_bytes_tuple_0 given in one single declaration
[2025-05-07 17:27:16,641 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_loop_bytes_tuple_0
[2025-05-07 17:27:16,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_loop_bytes_tuple_0
[2025-05-07 17:27:16,641 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,641 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__62_63_0
[2025-05-07 17:27:16,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__62_63_0
[2025-05-07 17:27:16,641 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,641 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__62_63_0
[2025-05-07 17:27:16,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,642 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,642 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,642 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:16,642 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__62_63_0
[2025-05-07 17:27:16,642 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:16,643 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:16,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:16,801 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:16,803 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:17,062 INFO  L?                        ?]: Removed 222 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:17,062 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:17,070 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:17,070 INFO  L312             CfgBuilder]: Removed 12 assume(true) statements.
[2025-05-07 17:27:17,071 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:17 BoogieIcfgContainer
[2025-05-07 17:27:17,071 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:17,072 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:17,072 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:17,075 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:17,075 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:16" (1/3) ...
[2025-05-07 17:27:17,075 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c3f8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:17, skipping insertion in model container
[2025-05-07 17:27:17,075 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:16" (2/3) ...
[2025-05-07 17:27:17,075 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c3f8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:17, skipping insertion in model container
[2025-05-07 17:27:17,075 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:17" (3/3) ...
[2025-05-07 17:27:17,076 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:17,087 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:17,089 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 24 procedures, 108 locations, 187 edges, 24 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:17,119 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:17,128 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;@19a884ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:17,128 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:17,131 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 108 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 46 states have internal predecessors, (46), 41 states have call successors, (47), 23 states have call predecessors, (47), 23 states have return successors, (47), 39 states have call predecessors, (47), 41 states have call successors, (47)
[2025-05-07 17:27:17,138 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:17,138 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:17,139 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 17:27:17,139 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:17,143 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:17,143 INFO  L85        PathProgramCache]: Analyzing trace with hash -2004883150, now seen corresponding path program 1 times
[2025-05-07 17:27:17,149 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:17,149 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903191873]
[2025-05-07 17:27:17,149 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:17,149 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:17,189 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:17,212 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:17,212 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:17,212 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:17,291 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 17:27:17,291 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:17,291 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903191873]
[2025-05-07 17:27:17,292 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903191873] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:17,292 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:17,294 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:27:17,296 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818842704]
[2025-05-07 17:27:17,296 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:17,300 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:27:17,300 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:17,318 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:27:17,318 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:27:17,320 INFO  L87              Difference]: Start difference. First operand  has 108 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 46 states have internal predecessors, (46), 41 states have call successors, (47), 23 states have call predecessors, (47), 23 states have return successors, (47), 39 states have call predecessors, (47), 41 states have call successors, (47) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:27:17,351 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:17,352 INFO  L93              Difference]: Finished difference Result 88 states and 106 transitions.
[2025-05-07 17:27:17,353 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:27:17,354 INFO  L79                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 51
[2025-05-07 17:27:17,354 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:17,360 INFO  L225             Difference]: With dead ends: 88
[2025-05-07 17:27:17,360 INFO  L226             Difference]: Without dead ends: 84
[2025-05-07 17:27:17,362 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:27:17,364 INFO  L437           NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:17,368 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:17,382 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2025-05-07 17:27:17,410 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84.
[2025-05-07 17:27:17,411 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 36 states have internal predecessors, (36), 31 states have call successors, (33), 19 states have call predecessors, (33), 19 states have return successors, (33), 29 states have call predecessors, (33), 31 states have call successors, (33)
[2025-05-07 17:27:17,416 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 102 transitions.
[2025-05-07 17:27:17,417 INFO  L79                 Accepts]: Start accepts. Automaton has 84 states and 102 transitions. Word has length 51
[2025-05-07 17:27:17,417 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:17,418 INFO  L485      AbstractCegarLoop]: Abstraction has 84 states and 102 transitions.
[2025-05-07 17:27:17,418 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:27:17,418 INFO  L278                IsEmpty]: Start isEmpty. Operand 84 states and 102 transitions.
[2025-05-07 17:27:17,420 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2025-05-07 17:27:17,421 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:17,421 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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]
[2025-05-07 17:27:17,421 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:17,421 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:17,422 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:17,422 INFO  L85        PathProgramCache]: Analyzing trace with hash -984899068, now seen corresponding path program 1 times
[2025-05-07 17:27:17,423 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:17,423 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096775997]
[2025-05-07 17:27:17,423 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:17,423 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:17,457 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes.
[2025-05-07 17:27:17,499 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements.
[2025-05-07 17:27:17,500 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:17,500 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:17,714 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2025-05-07 17:27:17,714 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:17,714 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096775997]
[2025-05-07 17:27:17,715 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096775997] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:17,715 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:17,715 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-05-07 17:27:17,715 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009788330]
[2025-05-07 17:27:17,715 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:17,716 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-05-07 17:27:17,716 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:17,717 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-05-07 17:27:17,717 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:27:17,717 INFO  L87              Difference]: Start difference. First operand 84 states and 102 transitions. Second operand  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:27:17,757 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:17,757 INFO  L93              Difference]: Finished difference Result 88 states and 106 transitions.
[2025-05-07 17:27:17,758 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-05-07 17:27:17,758 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 67
[2025-05-07 17:27:17,759 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:17,760 INFO  L225             Difference]: With dead ends: 88
[2025-05-07 17:27:17,760 INFO  L226             Difference]: Without dead ends: 84
[2025-05-07 17:27:17,760 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 17:27:17,760 INFO  L437           NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 390 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 17:27:17,761 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 390 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:17,761 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2025-05-07 17:27:17,767 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82.
[2025-05-07 17:27:17,767 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 35 states have internal predecessors, (35), 29 states have call successors, (31), 19 states have call predecessors, (31), 19 states have return successors, (31), 28 states have call predecessors, (31), 29 states have call successors, (31)
[2025-05-07 17:27:17,768 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 97 transitions.
[2025-05-07 17:27:17,768 INFO  L79                 Accepts]: Start accepts. Automaton has 82 states and 97 transitions. Word has length 67
[2025-05-07 17:27:17,769 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:17,769 INFO  L485      AbstractCegarLoop]: Abstraction has 82 states and 97 transitions.
[2025-05-07 17:27:17,769 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:27:17,769 INFO  L278                IsEmpty]: Start isEmpty. Operand 82 states and 97 transitions.
[2025-05-07 17:27:17,770 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2025-05-07 17:27:17,770 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:17,770 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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]
[2025-05-07 17:27:17,771 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:17,771 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:17,771 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:17,771 INFO  L85        PathProgramCache]: Analyzing trace with hash 103308424, now seen corresponding path program 1 times
[2025-05-07 17:27:17,771 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:17,771 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439461673]
[2025-05-07 17:27:17,771 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:17,771 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:17,801 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes.
[2025-05-07 17:27:17,817 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements.
[2025-05-07 17:27:17,817 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:17,817 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:17,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2025-05-07 17:27:17,915 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:17,916 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439461673]
[2025-05-07 17:27:17,916 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439461673] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:17,916 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:17,916 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:17,916 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675935659]
[2025-05-07 17:27:17,916 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:17,916 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:17,916 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:17,917 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:17,917 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:17,917 INFO  L87              Difference]: Start difference. First operand 82 states and 97 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17)
[2025-05-07 17:27:17,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:17,959 INFO  L93              Difference]: Finished difference Result 87 states and 103 transitions.
[2025-05-07 17:27:17,960 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:17,960 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), 5 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 67
[2025-05-07 17:27:17,960 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:17,961 INFO  L225             Difference]: With dead ends: 87
[2025-05-07 17:27:17,961 INFO  L226             Difference]: Without dead ends: 87
[2025-05-07 17:27:17,961 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 17:27:17,962 INFO  L437           NwaCegarLoop]: 95 mSDtfsCounter, 1 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 463 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 17:27:17,962 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 463 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:17,962 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2025-05-07 17:27:17,966 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87.
[2025-05-07 17:27:17,967 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 37 states have internal predecessors, (37), 30 states have call successors, (32), 19 states have call predecessors, (32), 21 states have return successors, (34), 31 states have call predecessors, (34), 30 states have call successors, (34)
[2025-05-07 17:27:17,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions.
[2025-05-07 17:27:17,968 INFO  L79                 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 67
[2025-05-07 17:27:17,968 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:17,968 INFO  L485      AbstractCegarLoop]: Abstraction has 87 states and 103 transitions.
[2025-05-07 17:27:17,968 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), 5 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17)
[2025-05-07 17:27:17,968 INFO  L278                IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions.
[2025-05-07 17:27:17,969 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2025-05-07 17:27:17,969 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:17,969 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:17,969 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:17,969 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:17,970 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:17,970 INFO  L85        PathProgramCache]: Analyzing trace with hash -1284413051, now seen corresponding path program 1 times
[2025-05-07 17:27:17,970 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:17,970 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372833961]
[2025-05-07 17:27:17,970 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:17,970 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:17,996 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes.
[2025-05-07 17:27:18,015 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements.
[2025-05-07 17:27:18,015 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:18,015 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:18,118 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-05-07 17:27:18,118 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:18,118 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372833961]
[2025-05-07 17:27:18,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372833961] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:18,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:18,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:18,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322686125]
[2025-05-07 17:27:18,118 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:18,119 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:18,119 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:18,120 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:18,120 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:18,120 INFO  L87              Difference]: Start difference. First operand 87 states and 103 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:27:18,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:18,156 INFO  L93              Difference]: Finished difference Result 92 states and 109 transitions.
[2025-05-07 17:27:18,157 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:18,157 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), 5 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 75
[2025-05-07 17:27:18,157 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:18,158 INFO  L225             Difference]: With dead ends: 92
[2025-05-07 17:27:18,158 INFO  L226             Difference]: Without dead ends: 92
[2025-05-07 17:27:18,158 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 17:27:18,158 INFO  L437           NwaCegarLoop]: 100 mSDtfsCounter, 1 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 483 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 17:27:18,159 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 483 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:18,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2025-05-07 17:27:18,163 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87.
[2025-05-07 17:27:18,163 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 37 states have internal predecessors, (37), 30 states have call successors, (32), 19 states have call predecessors, (32), 21 states have return successors, (34), 31 states have call predecessors, (34), 30 states have call successors, (34)
[2025-05-07 17:27:18,164 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions.
[2025-05-07 17:27:18,164 INFO  L79                 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 75
[2025-05-07 17:27:18,164 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:18,164 INFO  L485      AbstractCegarLoop]: Abstraction has 87 states and 103 transitions.
[2025-05-07 17:27:18,164 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), 5 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:27:18,164 INFO  L278                IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions.
[2025-05-07 17:27:18,165 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2025-05-07 17:27:18,165 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:18,165 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:18,165 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:27:18,165 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:18,165 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:18,165 INFO  L85        PathProgramCache]: Analyzing trace with hash -822288501, now seen corresponding path program 1 times
[2025-05-07 17:27:18,165 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:18,165 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233879372]
[2025-05-07 17:27:18,166 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:18,166 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:18,188 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes.
[2025-05-07 17:27:18,200 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements.
[2025-05-07 17:27:18,200 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:18,200 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:18,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-05-07 17:27:18,462 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:18,462 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233879372]
[2025-05-07 17:27:18,462 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233879372] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:18,462 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:18,462 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2025-05-07 17:27:18,462 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109699894]
[2025-05-07 17:27:18,462 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:18,463 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2025-05-07 17:27:18,463 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:18,463 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2025-05-07 17:27:18,464 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:18,464 INFO  L87              Difference]: Start difference. First operand 87 states and 103 transitions. Second operand  has 9 states, 6 states have (on average 4.5) internal successors, (27), 9 states have internal predecessors, (27), 8 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18)
[2025-05-07 17:27:18,550 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:18,551 INFO  L93              Difference]: Finished difference Result 57 states and 69 transitions.
[2025-05-07 17:27:18,551 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2025-05-07 17:27:18,551 INFO  L79                 Accepts]: Start accepts. Automaton has  has 9 states, 6 states have (on average 4.5) internal successors, (27), 9 states have internal predecessors, (27), 8 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) Word has length 75
[2025-05-07 17:27:18,552 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:18,552 INFO  L225             Difference]: With dead ends: 57
[2025-05-07 17:27:18,552 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:18,552 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2025-05-07 17:27:18,553 INFO  L437           NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:18,553 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 421 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:18,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:18,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:18,554 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 17:27:18,554 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:18,554 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75
[2025-05-07 17:27:18,554 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:18,554 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:18,555 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 6 states have (on average 4.5) internal successors, (27), 9 states have internal predecessors, (27), 8 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18)
[2025-05-07 17:27:18,555 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:18,555 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:18,557 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:18,557 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:27:18,560 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2025-05-07 17:27:18,562 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:18,564 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:18 BoogieIcfgContainer
[2025-05-07 17:27:18,565 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:18,565 INFO  L158              Benchmark]: Toolchain (without parser) took 2076.51ms. Allocated memory is still 234.9MB. Free memory was 143.4MB in the beginning and 77.3MB in the end (delta: 66.2MB). Peak memory consumption was 79.4MB. Max. memory is 33.6GB.
[2025-05-07 17:27:18,565 INFO  L158              Benchmark]: SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:18,566 INFO  L158              Benchmark]: ChcToBoogie took 52.74ms. Allocated memory is still 234.9MB. Free memory was 143.4MB in the beginning and 138.4MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:18,566 INFO  L158              Benchmark]: Boogie Preprocessor took 58.67ms. Allocated memory is still 234.9MB. Free memory was 138.4MB in the beginning and 134.8MB in the end (delta: 3.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:18,566 INFO  L158              Benchmark]: RCFGBuilder took 469.29ms. Allocated memory is still 234.9MB. Free memory was 134.8MB in the beginning and 166.6MB in the end (delta: -31.8MB). Peak memory consumption was 24.9MB. Max. memory is 33.6GB.
[2025-05-07 17:27:18,566 INFO  L158              Benchmark]: TraceAbstraction took 1492.65ms. Allocated memory is still 234.9MB. Free memory was 165.8MB in the beginning and 77.3MB in the end (delta: 88.5MB). Peak memory consumption was 88.0MB. Max. memory is 33.6GB.
[2025-05-07 17:27:18,568 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 52.74ms. Allocated memory is still 234.9MB. Free memory was 143.4MB in the beginning and 138.4MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 58.67ms. Allocated memory is still 234.9MB. Free memory was 138.4MB in the beginning and 134.8MB in the end (delta: 3.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 469.29ms. Allocated memory is still 234.9MB. Free memory was 134.8MB in the beginning and 166.6MB in the end (delta: -31.8MB). Peak memory consumption was 24.9MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1492.65ms. Allocated memory is still 234.9MB. Free memory was 165.8MB in the beginning and 77.3MB in the end (delta: 88.5MB). Peak memory consumption was 88.0MB. 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 24 procedures, 108 locations, 187 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 1863 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1397 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 466 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 56/56 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 17:27:18,578 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
