./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice.sol_3_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:20,117 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:20,154 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cc3cf4-2a5b-4cf3-b2ba-0abdce50b1e9/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:20,157 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:20,157 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:20,171 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:20,171 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:20,171 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:20,171 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:20,171 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:20,172 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:20,172 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:20,172 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:20,172 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:20,172 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:20,173 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:20,173 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:20,173 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:20,361 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:20,368 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:20,369 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:20,370 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:20,371 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:20,372 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cc3cf4-2a5b-4cf3-b2ba-0abdce50b1e9/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice.sol_3_no_adts_000.smt2
[2025-05-07 17:26:20,373 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:20,375 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:20,613 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cc3cf4-2a5b-4cf3-b2ba-0abdce50b1e9/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/slice.sol_3_no_adts_000.smt2
[2025-05-07 17:26:20,616 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:20,617 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:20,617 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:20,617 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:20,617 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:20,619 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,651 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20 Unit
[2025-05-07 17:26:20,652 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:20,652 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:20,652 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:20,652 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:20,663 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,664 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,686 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,686 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,692 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,693 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,694 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,697 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,698 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,710 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:20,711 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:20,711 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:20,711 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:20,712 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (1/1) ...
[2025-05-07 17:26:20,714 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:20,723 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:20,733 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 17:26:20,735 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 17:26:20,746 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:20,746 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:20,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:20,747 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_8_0 given in one single declaration
[2025-05-07 17:26:20,747 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_8_0
[2025-05-07 17:26:20,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_8_0
[2025-05-07 17:26:20,747 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_63_0 given in one single declaration
[2025-05-07 17:26:20,747 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_63_0
[2025-05-07 17:26:20,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_63_0
[2025-05-07 17:26:20,747 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_63_0 given in one single declaration
[2025-05-07 17:26:20,747 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_63_0
[2025-05-07 17:26:20,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_63_0
[2025-05-07 17:26:20,747 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_15_C_63_0 given in one single declaration
[2025-05-07 17:26:20,747 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_15_C_63_0
[2025-05-07 17:26:20,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_15_C_63_0
[2025-05-07 17:26:20,748 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_17_C_63_0 given in one single declaration
[2025-05-07 17:26:20,748 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_17_C_63_0
[2025-05-07 17:26:20,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_17_C_63_0
[2025-05-07 17:26:20,748 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_16_C_63_0 given in one single declaration
[2025-05-07 17:26:20,748 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_16_C_63_0
[2025-05-07 17:26:20,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_16_C_63_0
[2025-05-07 17:26:20,748 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_18_C_63_0 given in one single declaration
[2025-05-07 17:26:20,748 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_18_C_63_0
[2025-05-07 17:26:20,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_18_C_63_0
[2025-05-07 17:26:20,748 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,748 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__62_63_0
[2025-05-07 17:26:20,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__62_63_0
[2025-05-07 17:26:20,748 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,748 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_f__62_63_0
[2025-05-07 17:26:20,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_f__62_63_0
[2025-05-07 17:26:20,749 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,749 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__62_63_0
[2025-05-07 17:26:20,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__62_63_0
[2025-05-07 17:26:20,749 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,749 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__62_63_0
[2025-05-07 17:26:20,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__62_63_0
[2025-05-07 17:26:20,749 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_61_63_0 given in one single declaration
[2025-05-07 17:26:20,749 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_61_63_0
[2025-05-07 17:26:20,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_61_63_0
[2025-05-07 17:26:20,749 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,749 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__62_63_0
[2025-05-07 17:26:20,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__62_63_0
[2025-05-07 17:26:20,749 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_bytes_tuple_0 given in one single declaration
[2025-05-07 17:26:20,750 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_bytes_tuple_0
[2025-05-07 17:26:20,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_bytes_tuple_0
[2025-05-07 17:26:20,750 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_header_bytes_tuple_0 given in one single declaration
[2025-05-07 17:26:20,750 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_header_bytes_tuple_0
[2025-05-07 17:26:20,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_header_bytes_tuple_0
[2025-05-07 17:26:20,750 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure array_slice_loop_bytes_tuple_0 given in one single declaration
[2025-05-07 17:26:20,750 INFO  L130     BoogieDeclarations]: Found specification of procedure array_slice_loop_bytes_tuple_0
[2025-05-07 17:26:20,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure array_slice_loop_bytes_tuple_0
[2025-05-07 17:26:20,750 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,750 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__62_63_0
[2025-05-07 17:26:20,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__62_63_0
[2025-05-07 17:26:20,750 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,750 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__62_63_0
[2025-05-07 17:26:20,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__62_63_0
[2025-05-07 17:26:20,750 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,751 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__62_63_0
[2025-05-07 17:26:20,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__62_63_0
[2025-05-07 17:26:20,751 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,751 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__62_63_0
[2025-05-07 17:26:20,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__62_63_0
[2025-05-07 17:26:20,751 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,751 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__62_63_0
[2025-05-07 17:26:20,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__62_63_0
[2025-05-07 17:26:20,751 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__62_63_0 given in one single declaration
[2025-05-07 17:26:20,751 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__62_63_0
[2025-05-07 17:26:20,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__62_63_0
[2025-05-07 17:26:20,751 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:20,751 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:20,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:20,890 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:20,892 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:21,132 INFO  L?                        ?]: Removed 222 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:21,133 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:21,141 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:21,141 INFO  L312             CfgBuilder]: Removed 12 assume(true) statements.
[2025-05-07 17:26:21,142 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:21 BoogieIcfgContainer
[2025-05-07 17:26:21,142 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:21,143 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:21,143 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:21,146 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:21,146 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:20" (1/3) ...
[2025-05-07 17:26:21,146 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eab0c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:21, skipping insertion in model container
[2025-05-07 17:26:21,147 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:20" (2/3) ...
[2025-05-07 17:26:21,147 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eab0c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:21, skipping insertion in model container
[2025-05-07 17:26:21,147 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:21" (3/3) ...
[2025-05-07 17:26:21,148 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:21,158 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:21,160 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 17:26:21,190 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:21,200 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;@d93de47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:21,200 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:21,204 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 17:26:21,215 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:21,215 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:21,216 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 17:26:21,216 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:21,220 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:21,221 INFO  L85        PathProgramCache]: Analyzing trace with hash -1913624728, now seen corresponding path program 1 times
[2025-05-07 17:26:21,226 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:21,226 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453282838]
[2025-05-07 17:26:21,226 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:21,227 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:21,266 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:21,288 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:21,288 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:21,289 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:21,361 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 17:26:21,361 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:21,361 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453282838]
[2025-05-07 17:26:21,361 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453282838] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:21,362 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:21,364 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:26:21,365 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863349068]
[2025-05-07 17:26:21,365 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:21,368 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:26:21,368 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:21,387 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:26:21,388 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:26:21,389 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 17:26:21,417 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:21,417 INFO  L93              Difference]: Finished difference Result 88 states and 106 transitions.
[2025-05-07 17:26:21,418 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:26:21,419 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 17:26:21,419 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:21,424 INFO  L225             Difference]: With dead ends: 88
[2025-05-07 17:26:21,424 INFO  L226             Difference]: Without dead ends: 84
[2025-05-07 17:26:21,426 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 17:26:21,427 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 17:26:21,428 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 17:26:21,441 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2025-05-07 17:26:21,457 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84.
[2025-05-07 17:26:21,458 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 17:26:21,467 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 102 transitions.
[2025-05-07 17:26:21,469 INFO  L79                 Accepts]: Start accepts. Automaton has 84 states and 102 transitions. Word has length 51
[2025-05-07 17:26:21,469 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:21,470 INFO  L485      AbstractCegarLoop]: Abstraction has 84 states and 102 transitions.
[2025-05-07 17:26:21,470 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 17:26:21,470 INFO  L278                IsEmpty]: Start isEmpty. Operand 84 states and 102 transitions.
[2025-05-07 17:26:21,473 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2025-05-07 17:26:21,473 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:21,473 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 17:26:21,473 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:21,473 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:21,474 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:21,475 INFO  L85        PathProgramCache]: Analyzing trace with hash -1098182078, now seen corresponding path program 1 times
[2025-05-07 17:26:21,475 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:21,475 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491326057]
[2025-05-07 17:26:21,475 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:21,475 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:21,505 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes.
[2025-05-07 17:26:21,565 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements.
[2025-05-07 17:26:21,565 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:21,565 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:21,741 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 17:26:21,741 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:21,741 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491326057]
[2025-05-07 17:26:21,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491326057] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:21,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:21,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:21,741 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772262612]
[2025-05-07 17:26:21,741 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:21,742 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:21,742 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:21,743 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:21,743 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:21,743 INFO  L87              Difference]: Start difference. First operand 84 states and 102 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 17:26:21,786 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:21,786 INFO  L93              Difference]: Finished difference Result 89 states and 108 transitions.
[2025-05-07 17:26:21,786 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:21,787 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 17:26:21,787 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:21,788 INFO  L225             Difference]: With dead ends: 89
[2025-05-07 17:26:21,788 INFO  L226             Difference]: Without dead ends: 89
[2025-05-07 17:26:21,788 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 17:26:21,788 INFO  L437           NwaCegarLoop]: 99 mSDtfsCounter, 1 mSDsluCounter, 384 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 17:26:21,788 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 17:26:21,789 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2025-05-07 17:26:21,795 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89.
[2025-05-07 17:26:21,795 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 38 states have internal predecessors, (38), 32 states have call successors, (34), 19 states have call predecessors, (34), 21 states have return successors, (36), 32 states have call predecessors, (36), 32 states have call successors, (36)
[2025-05-07 17:26:21,796 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions.
[2025-05-07 17:26:21,797 INFO  L79                 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 67
[2025-05-07 17:26:21,797 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:21,797 INFO  L485      AbstractCegarLoop]: Abstraction has 89 states and 108 transitions.
[2025-05-07 17:26:21,797 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 17:26:21,797 INFO  L278                IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions.
[2025-05-07 17:26:21,798 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2025-05-07 17:26:21,798 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:21,798 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 17:26:21,798 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:21,798 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:21,799 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:21,799 INFO  L85        PathProgramCache]: Analyzing trace with hash -1651407423, now seen corresponding path program 1 times
[2025-05-07 17:26:21,799 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:21,799 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194517131]
[2025-05-07 17:26:21,799 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:21,799 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:21,823 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes.
[2025-05-07 17:26:21,838 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements.
[2025-05-07 17:26:21,839 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:21,839 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:21,972 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 17:26:21,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:21,972 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194517131]
[2025-05-07 17:26:21,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194517131] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:21,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:21,972 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-05-07 17:26:21,972 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874168979]
[2025-05-07 17:26:21,972 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:21,973 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-05-07 17:26:21,973 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:21,973 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-05-07 17:26:21,973 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:26:21,973 INFO  L87              Difference]: Start difference. First operand 89 states and 108 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, (18), 1 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:26:22,001 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:22,001 INFO  L93              Difference]: Finished difference Result 93 states and 112 transitions.
[2025-05-07 17:26:22,001 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-05-07 17:26:22,001 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, (18), 1 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 75
[2025-05-07 17:26:22,002 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:22,002 INFO  L225             Difference]: With dead ends: 93
[2025-05-07 17:26:22,002 INFO  L226             Difference]: Without dead ends: 89
[2025-05-07 17:26:22,002 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 17:26:22,003 INFO  L437           NwaCegarLoop]: 100 mSDtfsCounter, 1 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 387 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 17:26:22,003 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 387 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:22,004 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2025-05-07 17:26:22,007 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87.
[2025-05-07 17:26:22,008 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 17:26:22,009 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions.
[2025-05-07 17:26:22,009 INFO  L79                 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 75
[2025-05-07 17:26:22,009 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:22,009 INFO  L485      AbstractCegarLoop]: Abstraction has 87 states and 103 transitions.
[2025-05-07 17:26:22,009 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, (18), 1 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:26:22,009 INFO  L278                IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions.
[2025-05-07 17:26:22,010 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2025-05-07 17:26:22,010 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:22,010 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 17:26:22,010 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:22,010 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:22,010 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:22,010 INFO  L85        PathProgramCache]: Analyzing trace with hash -1025324481, now seen corresponding path program 1 times
[2025-05-07 17:26:22,011 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:22,011 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607574901]
[2025-05-07 17:26:22,011 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:22,011 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:22,033 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes.
[2025-05-07 17:26:22,045 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements.
[2025-05-07 17:26:22,045 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:22,045 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:22,151 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 17:26:22,151 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:22,151 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607574901]
[2025-05-07 17:26:22,151 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607574901] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:22,151 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:22,151 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:22,151 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924511895]
[2025-05-07 17:26:22,151 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:22,152 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:22,152 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:22,152 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:22,152 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:22,152 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 17:26:22,185 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:22,186 INFO  L93              Difference]: Finished difference Result 92 states and 109 transitions.
[2025-05-07 17:26:22,186 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:22,186 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 17:26:22,187 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:22,187 INFO  L225             Difference]: With dead ends: 92
[2025-05-07 17:26:22,187 INFO  L226             Difference]: Without dead ends: 92
[2025-05-07 17:26:22,187 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 17:26:22,188 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 17:26:22,188 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 17:26:22,189 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2025-05-07 17:26:22,192 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87.
[2025-05-07 17:26:22,192 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 17:26:22,193 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions.
[2025-05-07 17:26:22,193 INFO  L79                 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 75
[2025-05-07 17:26:22,193 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:22,193 INFO  L485      AbstractCegarLoop]: Abstraction has 87 states and 103 transitions.
[2025-05-07 17:26:22,193 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 17:26:22,193 INFO  L278                IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions.
[2025-05-07 17:26:22,194 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2025-05-07 17:26:22,194 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:22,194 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 17:26:22,195 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:26:22,195 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:22,195 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:22,195 INFO  L85        PathProgramCache]: Analyzing trace with hash -563199931, now seen corresponding path program 1 times
[2025-05-07 17:26:22,195 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:22,195 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329472725]
[2025-05-07 17:26:22,195 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:22,195 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:22,216 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes.
[2025-05-07 17:26:22,227 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements.
[2025-05-07 17:26:22,227 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:22,227 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:22,416 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 17:26:22,416 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:22,416 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329472725]
[2025-05-07 17:26:22,416 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329472725] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:22,416 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:22,416 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2025-05-07 17:26:22,416 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413599430]
[2025-05-07 17:26:22,417 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:22,417 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2025-05-07 17:26:22,417 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:22,418 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2025-05-07 17:26:22,418 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:26:22,418 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 17:26:22,513 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:22,513 INFO  L93              Difference]: Finished difference Result 57 states and 69 transitions.
[2025-05-07 17:26:22,514 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2025-05-07 17:26:22,514 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 17:26:22,514 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:22,514 INFO  L225             Difference]: With dead ends: 57
[2025-05-07 17:26:22,514 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:22,515 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 17:26:22,515 INFO  L437           NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:22,515 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 478 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:22,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:22,516 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:22,516 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 17:26:22,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:22,516 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75
[2025-05-07 17:26:22,516 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:22,516 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:22,516 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 17:26:22,516 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:22,517 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:22,519 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:22,519 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:26:22,521 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2025-05-07 17:26:22,523 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:22,526 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:22 BoogieIcfgContainer
[2025-05-07 17:26:22,526 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:22,526 INFO  L158              Benchmark]: Toolchain (without parser) took 1909.73ms. Allocated memory is still 234.9MB. Free memory was 142.0MB in the beginning and 191.3MB in the end (delta: -49.3MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:22,526 INFO  L158              Benchmark]: SmtParser took 0.25ms. Allocated memory is still 234.9MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:22,527 INFO  L158              Benchmark]: ChcToBoogie took 34.72ms. Allocated memory is still 234.9MB. Free memory was 142.0MB in the beginning and 138.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:22,527 INFO  L158              Benchmark]: Boogie Preprocessor took 57.99ms. Allocated memory is still 234.9MB. Free memory was 138.3MB in the beginning and 134.9MB in the end (delta: 3.4MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:22,527 INFO  L158              Benchmark]: RCFGBuilder took 431.02ms. Allocated memory is still 234.9MB. Free memory was 134.8MB in the beginning and 165.5MB in the end (delta: -30.8MB). Peak memory consumption was 26.2MB. Max. memory is 33.6GB.
[2025-05-07 17:26:22,527 INFO  L158              Benchmark]: TraceAbstraction took 1382.72ms. Allocated memory is still 234.9MB. Free memory was 164.9MB in the beginning and 191.3MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:22,528 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.25ms. Allocated memory is still 234.9MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 34.72ms. Allocated memory is still 234.9MB. Free memory was 142.0MB in the beginning and 138.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 57.99ms. Allocated memory is still 234.9MB. Free memory was 138.3MB in the beginning and 134.9MB in the end (delta: 3.4MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 431.02ms. Allocated memory is still 234.9MB. Free memory was 134.8MB in the beginning and 165.5MB in the end (delta: -30.8MB). Peak memory consumption was 26.2MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1382.72ms. Allocated memory is still 234.9MB. Free memory was 164.9MB in the beginning and 191.3MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 24 procedures, 108 locations, 187 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, 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, 1937 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1468 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 469 mSDtfsCounter, 93 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 70/70 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 17:26:22,539 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
