./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/array_static_aliasing_memory_5.sol_1_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:32,156 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:32,212 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca635c0b-43b8-4b14-9f32-4636af4d2fd2/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:32,216 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:32,216 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:32,235 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:32,235 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:32,236 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:32,236 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:32,236 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:32,236 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:32,236 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:32,237 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:32,237 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:32,237 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:32,237 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:32,237 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:32,237 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:32,237 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:32,237 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:32,237 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:32,238 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:32,238 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:32,238 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:32,238 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:32,238 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:32,239 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:32,445 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:32,453 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:32,455 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:32,456 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:32,456 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:32,457 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca635c0b-43b8-4b14-9f32-4636af4d2fd2/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/array_static_aliasing_memory_5.sol_1_no_adts_000.smt2
[2025-05-07 17:27:32,458 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:32,460 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:32,828 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca635c0b-43b8-4b14-9f32-4636af4d2fd2/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/array_static_aliasing_memory_5.sol_1_no_adts_000.smt2
[2025-05-07 17:27:32,830 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:32,831 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:32,831 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:32,831 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:32,832 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:32,833 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,872 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32 Unit
[2025-05-07 17:27:32,872 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:32,873 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:32,873 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:32,874 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:32,889 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,890 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,917 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,917 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,927 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,928 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,931 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,935 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,936 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,952 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:32,953 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:32,953 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:32,953 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:32,954 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (1/1) ...
[2025-05-07 17:27:32,956 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:32,968 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:32,979 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 17:27:32,992 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 17:27:33,000 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:33,000 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:33,000 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:33,000 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_14_0 given in one single declaration
[2025-05-07 17:27:33,000 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_14_0
[2025-05-07 17:27:33,000 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_14_0
[2025-05-07 17:27:33,000 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,001 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,001 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,001 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,001 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_61_63_0 given in one single declaration
[2025-05-07 17:27:33,001 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_61_63_0
[2025-05-07 17:27:33,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_61_63_0
[2025-05-07 17:27:33,001 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,001 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,001 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__62_63_0
[2025-05-07 17:27:33,001 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,002 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,002 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,002 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,002 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,002 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,002 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,002 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__62_63_0
[2025-05-07 17:27:33,002 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__62_63_0 given in one single declaration
[2025-05-07 17:27:33,002 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__62_63_0
[2025-05-07 17:27:33,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__62_63_0
[2025-05-07 17:27:33,003 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_63_0 given in one single declaration
[2025-05-07 17:27:33,003 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_63_0
[2025-05-07 17:27:33,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_63_0
[2025-05-07 17:27:33,003 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_63_0 given in one single declaration
[2025-05-07 17:27:33,003 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_63_0
[2025-05-07 17:27:33,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_63_0
[2025-05-07 17:27:33,003 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_18_C_63_0 given in one single declaration
[2025-05-07 17:27:33,003 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_18_C_63_0
[2025-05-07 17:27:33,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_18_C_63_0
[2025-05-07 17:27:33,003 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_20_C_63_0 given in one single declaration
[2025-05-07 17:27:33,003 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_20_C_63_0
[2025-05-07 17:27:33,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_20_C_63_0
[2025-05-07 17:27:33,003 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_19_C_63_0 given in one single declaration
[2025-05-07 17:27:33,003 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_19_C_63_0
[2025-05-07 17:27:33,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_19_C_63_0
[2025-05-07 17:27:33,003 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_21_C_63_0 given in one single declaration
[2025-05-07 17:27:33,003 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_21_C_63_0
[2025-05-07 17:27:33,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_21_C_63_0
[2025-05-07 17:27:33,003 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:33,003 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:33,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:33,174 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:33,177 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:33,429 INFO  L?                        ?]: Removed 291 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:33,429 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:33,437 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:33,438 INFO  L312             CfgBuilder]: Removed 15 assume(true) statements.
[2025-05-07 17:27:33,438 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:33 BoogieIcfgContainer
[2025-05-07 17:27:33,438 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:33,440 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:33,440 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:33,442 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:33,443 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:32" (1/3) ...
[2025-05-07 17:27:33,443 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56546a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:33, skipping insertion in model container
[2025-05-07 17:27:33,443 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:32" (2/3) ...
[2025-05-07 17:27:33,443 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56546a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:33, skipping insertion in model container
[2025-05-07 17:27:33,443 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:33" (3/3) ...
[2025-05-07 17:27:33,444 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:33,454 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:33,456 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 24 procedures, 94 locations, 153 edges, 24 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:33,486 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:33,495 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;@4632b1ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:33,495 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:33,498 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 94 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 45 states have internal predecessors, (45), 27 states have call successors, (36), 23 states have call predecessors, (36), 23 states have return successors, (36), 25 states have call predecessors, (36), 27 states have call successors, (36)
[2025-05-07 17:27:33,505 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:33,505 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:33,505 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 17:27:33,506 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:33,509 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:33,509 INFO  L85        PathProgramCache]: Analyzing trace with hash -1069515723, now seen corresponding path program 1 times
[2025-05-07 17:27:33,515 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:33,515 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533080333]
[2025-05-07 17:27:33,515 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:33,516 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:33,568 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:33,611 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:33,611 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:33,611 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:33,696 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 17:27:33,696 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:33,696 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533080333]
[2025-05-07 17:27:33,697 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533080333] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:33,697 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:33,699 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:27:33,701 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007730459]
[2025-05-07 17:27:33,701 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:33,705 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:27:33,705 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:33,723 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:27:33,723 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:27:33,725 INFO  L87              Difference]: Start difference. First operand  has 94 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 45 states have internal predecessors, (45), 27 states have call successors, (36), 23 states have call predecessors, (36), 23 states have return successors, (36), 25 states have call predecessors, (36), 27 states have call successors, (36) 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 17:27:33,753 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:33,753 INFO  L93              Difference]: Finished difference Result 71 states and 80 transitions.
[2025-05-07 17:27:33,754 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:27:33,755 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 17:27:33,755 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:33,760 INFO  L225             Difference]: With dead ends: 71
[2025-05-07 17:27:33,760 INFO  L226             Difference]: Without dead ends: 64
[2025-05-07 17:27:33,761 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 17:27:33,763 INFO  L437           NwaCegarLoop]: 80 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, 80 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 17:27:33,764 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:33,779 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2025-05-07 17:27:33,797 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2025-05-07 17:27:33,798 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 29 states have internal predecessors, (29), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22)
[2025-05-07 17:27:33,803 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions.
[2025-05-07 17:27:33,808 INFO  L79                 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 51
[2025-05-07 17:27:33,810 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:33,810 INFO  L485      AbstractCegarLoop]: Abstraction has 64 states and 73 transitions.
[2025-05-07 17:27:33,810 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 17:27:33,810 INFO  L278                IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions.
[2025-05-07 17:27:33,812 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:33,813 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:33,813 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 17:27:33,813 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:33,813 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:33,815 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:33,815 INFO  L85        PathProgramCache]: Analyzing trace with hash 1526584621, now seen corresponding path program 1 times
[2025-05-07 17:27:33,815 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:33,815 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485357633]
[2025-05-07 17:27:33,815 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:33,815 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:33,847 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:33,888 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:33,888 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:33,888 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:34,188 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 17:27:34,188 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:34,188 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485357633]
[2025-05-07 17:27:34,188 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485357633] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:34,188 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:34,189 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:34,189 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122121921]
[2025-05-07 17:27:34,189 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:34,189 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:34,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:34,190 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:34,190 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:34,190 INFO  L87              Difference]: Start difference. First operand 64 states and 73 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:34,274 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:34,274 INFO  L93              Difference]: Finished difference Result 69 states and 79 transitions.
[2025-05-07 17:27:34,274 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:34,274 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:27:34,274 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:34,275 INFO  L225             Difference]: With dead ends: 69
[2025-05-07 17:27:34,275 INFO  L226             Difference]: Without dead ends: 69
[2025-05-07 17:27:34,275 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:34,276 INFO  L437           NwaCegarLoop]: 69 mSDtfsCounter, 1 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:34,276 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 463 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:34,277 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2025-05-07 17:27:34,281 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69.
[2025-05-07 17:27:34,281 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 69 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 31 states have internal predecessors, (31), 21 states have call successors, (23), 16 states have call predecessors, (23), 18 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25)
[2025-05-07 17:27:34,282 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions.
[2025-05-07 17:27:34,282 INFO  L79                 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 51
[2025-05-07 17:27:34,282 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:34,282 INFO  L485      AbstractCegarLoop]: Abstraction has 69 states and 79 transitions.
[2025-05-07 17:27:34,283 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:34,283 INFO  L278                IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions.
[2025-05-07 17:27:34,283 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:34,283 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:34,284 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 17:27:34,284 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:34,284 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:34,284 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:34,284 INFO  L85        PathProgramCache]: Analyzing trace with hash -758763657, now seen corresponding path program 1 times
[2025-05-07 17:27:34,284 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:34,284 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720292676]
[2025-05-07 17:27:34,284 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:34,284 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:34,308 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:34,311 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:34,311 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:34,311 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:34,381 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 17:27:34,381 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:34,381 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720292676]
[2025-05-07 17:27:34,381 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720292676] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:34,381 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:34,381 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:34,381 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658936709]
[2025-05-07 17:27:34,381 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:34,382 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:34,382 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:34,382 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:34,382 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:34,383 INFO  L87              Difference]: Start difference. First operand 69 states and 79 transitions. Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:34,390 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:34,390 INFO  L93              Difference]: Finished difference Result 73 states and 83 transitions.
[2025-05-07 17:27:34,391 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:34,391 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:27:34,391 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:34,392 INFO  L225             Difference]: With dead ends: 73
[2025-05-07 17:27:34,392 INFO  L226             Difference]: Without dead ends: 69
[2025-05-07 17:27:34,392 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:34,392 INFO  L437           NwaCegarLoop]: 73 mSDtfsCounter, 1 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:34,392 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 212 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:34,393 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2025-05-07 17:27:34,396 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67.
[2025-05-07 17:27:34,396 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 19 states have call successors, (21), 16 states have call predecessors, (21), 18 states have return successors, (23), 20 states have call predecessors, (23), 19 states have call successors, (23)
[2025-05-07 17:27:34,397 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions.
[2025-05-07 17:27:34,397 INFO  L79                 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 51
[2025-05-07 17:27:34,397 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:34,397 INFO  L485      AbstractCegarLoop]: Abstraction has 67 states and 74 transitions.
[2025-05-07 17:27:34,397 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:34,397 INFO  L278                IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions.
[2025-05-07 17:27:34,398 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:34,398 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:34,398 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 17:27:34,398 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:34,398 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:34,399 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:34,399 INFO  L85        PathProgramCache]: Analyzing trace with hash -1634607203, now seen corresponding path program 1 times
[2025-05-07 17:27:34,399 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:34,399 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039088338]
[2025-05-07 17:27:34,399 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:34,399 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:34,421 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:34,433 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:34,433 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:34,433 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:34,514 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 17:27:34,514 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:34,514 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039088338]
[2025-05-07 17:27:34,514 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039088338] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:34,514 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:34,514 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:34,514 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311970809]
[2025-05-07 17:27:34,514 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:34,515 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:34,515 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:34,515 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:34,515 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:34,515 INFO  L87              Difference]: Start difference. First operand 67 states and 74 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:34,550 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:34,550 INFO  L93              Difference]: Finished difference Result 72 states and 80 transitions.
[2025-05-07 17:27:34,550 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:34,550 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:27:34,550 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:34,551 INFO  L225             Difference]: With dead ends: 72
[2025-05-07 17:27:34,551 INFO  L226             Difference]: Without dead ends: 72
[2025-05-07 17:27:34,551 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 17:27:34,552 INFO  L437           NwaCegarLoop]: 71 mSDtfsCounter, 1 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 341 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 17:27:34,552 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 341 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:34,553 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2025-05-07 17:27:34,559 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 67.
[2025-05-07 17:27:34,559 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 19 states have call successors, (21), 16 states have call predecessors, (21), 18 states have return successors, (23), 20 states have call predecessors, (23), 19 states have call successors, (23)
[2025-05-07 17:27:34,560 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions.
[2025-05-07 17:27:34,561 INFO  L79                 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 51
[2025-05-07 17:27:34,561 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:34,561 INFO  L485      AbstractCegarLoop]: Abstraction has 67 states and 74 transitions.
[2025-05-07 17:27:34,561 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:34,561 INFO  L278                IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions.
[2025-05-07 17:27:34,563 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:34,563 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:34,563 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 17:27:34,564 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:27:34,564 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:34,564 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:34,564 INFO  L85        PathProgramCache]: Analyzing trace with hash 731279227, now seen corresponding path program 1 times
[2025-05-07 17:27:34,564 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:34,564 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376001194]
[2025-05-07 17:27:34,565 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:34,565 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:34,586 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:34,599 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:34,599 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:34,599 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:34,695 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 17:27:34,696 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:34,696 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376001194]
[2025-05-07 17:27:34,696 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376001194] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:34,696 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:34,696 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:34,696 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589172139]
[2025-05-07 17:27:34,696 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:34,696 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:34,696 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:34,697 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:34,697 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:34,697 INFO  L87              Difference]: Start difference. First operand 67 states and 74 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:34,733 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:34,733 INFO  L93              Difference]: Finished difference Result 61 states and 68 transitions.
[2025-05-07 17:27:34,733 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:34,734 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:27:34,734 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:34,734 INFO  L225             Difference]: With dead ends: 61
[2025-05-07 17:27:34,734 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:34,734 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 17:27:34,735 INFO  L437           NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 313 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 17:27:34,735 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 313 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:34,735 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:34,735 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:34,735 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 17:27:34,735 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:34,736 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:27:34,736 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:34,736 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:34,736 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:34,736 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:34,736 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:34,738 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:34,738 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:27:34,741 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2025-05-07 17:27:34,742 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:34,745 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:34 BoogieIcfgContainer
[2025-05-07 17:27:34,745 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:34,745 INFO  L158              Benchmark]: Toolchain (without parser) took 1914.59ms. Allocated memory is still 234.9MB. Free memory was 131.1MB in the beginning and 91.9MB in the end (delta: 39.2MB). Peak memory consumption was 31.4MB. Max. memory is 33.6GB.
[2025-05-07 17:27:34,746 INFO  L158              Benchmark]: SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:34,746 INFO  L158              Benchmark]: ChcToBoogie took 41.43ms. Allocated memory is still 234.9MB. Free memory was 131.1MB in the beginning and 126.2MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:34,746 INFO  L158              Benchmark]: Boogie Preprocessor took 79.24ms. Allocated memory is still 234.9MB. Free memory was 126.2MB in the beginning and 122.3MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:34,746 INFO  L158              Benchmark]: RCFGBuilder took 484.93ms. Allocated memory is still 234.9MB. Free memory was 122.1MB in the beginning and 140.3MB in the end (delta: -18.1MB). Peak memory consumption was 25.7MB. Max. memory is 33.6GB.
[2025-05-07 17:27:34,746 INFO  L158              Benchmark]: TraceAbstraction took 1305.20ms. Allocated memory is still 234.9MB. Free memory was 139.7MB in the beginning and 91.9MB in the end (delta: 47.8MB). Peak memory consumption was 39.2MB. Max. memory is 33.6GB.
[2025-05-07 17:27:34,747 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 41.43ms. Allocated memory is still 234.9MB. Free memory was 131.1MB in the beginning and 126.2MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 79.24ms. Allocated memory is still 234.9MB. Free memory was 126.2MB in the beginning and 122.3MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 484.93ms. Allocated memory is still 234.9MB. Free memory was 122.1MB in the beginning and 140.3MB in the end (delta: -18.1MB). Peak memory consumption was 25.7MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1305.20ms. Allocated memory is still 234.9MB. Free memory was 139.7MB in the beginning and 91.9MB in the end (delta: 47.8MB). Peak memory consumption was 39.2MB. 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, 94 locations, 153 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 1409 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1051 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 358 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 0.6s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 250 ConstructedInterpolants, 0 QuantifiedInterpolants, 330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:27:34,758 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
