./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-201.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:16,813 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:16,892 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454d484b-7c55-4304-bc96-5f878be24bce/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:16,905 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:16,905 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:16,943 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:16,944 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:16,944 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:16,945 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:16,947 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:16,947 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:16,948 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:16,948 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:16,949 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:16,949 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:16,949 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:16,950 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:16,950 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:16,950 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:16,950 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:16,950 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:16,950 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:16,950 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:16,951 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:16,951 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:16,952 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:16,952 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:17,315 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:17,330 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:17,333 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:17,336 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:17,337 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:17,338 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454d484b-7c55-4304-bc96-5f878be24bce/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-201.smt2
[2025-04-28 21:21:17,340 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:17,346 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:18,017 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454d484b-7c55-4304-bc96-5f878be24bce/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-201.smt2
[2025-04-28 21:21:18,021 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:18,022 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:18,025 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:18,025 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:18,025 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:18,032 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,133 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18 Unit
[2025-04-28 21:21:18,133 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:18,135 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:18,135 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:18,135 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:18,151 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,151 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,191 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,191 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,202 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,204 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,206 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,219 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,221 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,256 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:18,257 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:18,258 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:18,258 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:18,259 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (1/1) ...
[2025-04-28 21:21:18,262 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:18,284 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:18,300 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)
[2025-04-28 21:21:18,304 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-04-28 21:21:18,323 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:18,323 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:18,323 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:18,323 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_8_0 given in one single declaration
[2025-04-28 21:21:18,323 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_8_0
[2025-04-28 21:21:18,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_8_0
[2025-04-28 21:21:18,324 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,324 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_f__88_89_0
[2025-04-28 21:21:18,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_f__88_89_0
[2025-04-28 21:21:18,325 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,325 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__88_89_0
[2025-04-28 21:21:18,325 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__88_89_0
[2025-04-28 21:21:18,325 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,326 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__88_89_0
[2025-04-28 21:21:18,326 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__88_89_0
[2025-04-28 21:21:18,326 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_f_87_89_0 given in one single declaration
[2025-04-28 21:21:18,327 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_f_87_89_0
[2025-04-28 21:21:18,327 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_f_87_89_0
[2025-04-28 21:21:18,327 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,327 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_function_f__88_89_0
[2025-04-28 21:21:18,327 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_function_f__88_89_0
[2025-04-28 21:21:18,328 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,329 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__88_89_0
[2025-04-28 21:21:18,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__88_89_0
[2025-04-28 21:21:18,329 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,329 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__88_89_0
[2025-04-28 21:21:18,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__88_89_0
[2025-04-28 21:21:18,329 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_return_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,329 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_return_function_f__88_89_0
[2025-04-28 21:21:18,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_return_function_f__88_89_0
[2025-04-28 21:21:18,330 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,330 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__88_89_0
[2025-04-28 21:21:18,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__88_89_0
[2025-04-28 21:21:18,330 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,330 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__88_89_0
[2025-04-28 21:21:18,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__88_89_0
[2025-04-28 21:21:18,330 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_f__88_89_0 given in one single declaration
[2025-04-28 21:21:18,330 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_f__88_89_0
[2025-04-28 21:21:18,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_f__88_89_0
[2025-04-28 21:21:18,330 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_89_0 given in one single declaration
[2025-04-28 21:21:18,332 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_89_0
[2025-04-28 21:21:18,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_89_0
[2025-04-28 21:21:18,332 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_89_0 given in one single declaration
[2025-04-28 21:21:18,332 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_89_0
[2025-04-28 21:21:18,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_89_0
[2025-04-28 21:21:18,332 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_18_C_89_0 given in one single declaration
[2025-04-28 21:21:18,332 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_18_C_89_0
[2025-04-28 21:21:18,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_18_C_89_0
[2025-04-28 21:21:18,333 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_constructor_24_89_0 given in one single declaration
[2025-04-28 21:21:18,333 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_constructor_24_89_0
[2025-04-28 21:21:18,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_constructor_24_89_0
[2025-04-28 21:21:18,333 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_return_constructor_24_89_0 given in one single declaration
[2025-04-28 21:21:18,333 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_return_constructor_24_89_0
[2025-04-28 21:21:18,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_return_constructor_24_89_0
[2025-04-28 21:21:18,333 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16__23_89_0 given in one single declaration
[2025-04-28 21:21:18,333 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16__23_89_0
[2025-04-28 21:21:18,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16__23_89_0
[2025-04-28 21:21:18,333 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_constructor_24_89_0 given in one single declaration
[2025-04-28 21:21:18,333 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_constructor_24_89_0
[2025-04-28 21:21:18,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_constructor_24_89_0
[2025-04-28 21:21:18,334 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_20_C_89_0 given in one single declaration
[2025-04-28 21:21:18,334 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_20_C_89_0
[2025-04-28 21:21:18,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_20_C_89_0
[2025-04-28 21:21:18,334 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_19_C_89_0 given in one single declaration
[2025-04-28 21:21:18,334 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_19_C_89_0
[2025-04-28 21:21:18,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_19_C_89_0
[2025-04-28 21:21:18,334 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_21_C_89_0 given in one single declaration
[2025-04-28 21:21:18,334 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_21_C_89_0
[2025-04-28 21:21:18,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_21_C_89_0
[2025-04-28 21:21:18,334 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:18,336 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:18,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:18,676 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:18,681 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:19,226 INFO  L?                        ?]: Removed 307 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:19,226 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:19,244 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:19,244 INFO  L312             CfgBuilder]: Removed 12 assume(true) statements.
[2025-04-28 21:21:19,248 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:19 BoogieIcfgContainer
[2025-04-28 21:21:19,252 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:19,255 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:19,256 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:19,261 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:19,261 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:18" (1/3) ...
[2025-04-28 21:21:19,262 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724b790a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:19, skipping insertion in model container
[2025-04-28 21:21:19,262 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:18" (2/3) ...
[2025-04-28 21:21:19,263 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724b790a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:19, skipping insertion in model container
[2025-04-28 21:21:19,263 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:19" (3/3) ...
[2025-04-28 21:21:19,264 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:19,283 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:19,286 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 24 procedures, 95 locations, 147 edges, 24 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:19,349 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:19,368 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;@3ffee4a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:19,368 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:19,375 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 95 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 45 states have internal predecessors, (45), 29 states have call successors, (34), 23 states have call predecessors, (34), 23 states have return successors, (34), 26 states have call predecessors, (34), 29 states have call successors, (34)
[2025-04-28 21:21:19,390 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-04-28 21:21:19,390 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:19,391 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:19,391 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:19,400 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:19,401 INFO  L85        PathProgramCache]: Analyzing trace with hash -1315025234, now seen corresponding path program 1 times
[2025-04-28 21:21:19,408 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:19,409 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903269370]
[2025-04-28 21:21:19,409 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:19,409 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:19,523 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-04-28 21:21:19,564 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-04-28 21:21:19,565 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:19,565 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:20,103 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:20,105 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:20,105 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903269370]
[2025-04-28 21:21:20,106 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903269370] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:20,106 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:20,110 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-28 21:21:20,111 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878922255]
[2025-04-28 21:21:20,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:20,118 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-04-28 21:21:20,122 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:20,159 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-04-28 21:21:20,162 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:20,164 INFO  L87              Difference]: Start difference. First operand  has 95 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 45 states have internal predecessors, (45), 29 states have call successors, (34), 23 states have call predecessors, (34), 23 states have return successors, (34), 26 states have call predecessors, (34), 29 states have call successors, (34) Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-04-28 21:21:20,268 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:20,268 INFO  L93              Difference]: Finished difference Result 88 states and 100 transitions.
[2025-04-28 21:21:20,270 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-04-28 21:21:20,271 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 66
[2025-04-28 21:21:20,272 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:20,290 INFO  L225             Difference]: With dead ends: 88
[2025-04-28 21:21:20,290 INFO  L226             Difference]: Without dead ends: 81
[2025-04-28 21:21:20,292 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
[2025-04-28 21:21:20,296 INFO  L437           NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:20,297 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 283 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:20,313 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2025-04-28 21:21:20,355 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79.
[2025-04-28 21:21:20,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 79 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 36 states have internal predecessors, (36), 24 states have call successors, (26), 20 states have call predecessors, (26), 20 states have return successors, (26), 22 states have call predecessors, (26), 24 states have call successors, (26)
[2025-04-28 21:21:20,392 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions.
[2025-04-28 21:21:20,394 INFO  L79                 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 66
[2025-04-28 21:21:20,394 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:20,394 INFO  L485      AbstractCegarLoop]: Abstraction has 79 states and 88 transitions.
[2025-04-28 21:21:20,394 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-04-28 21:21:20,394 INFO  L278                IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions.
[2025-04-28 21:21:20,402 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-04-28 21:21:20,405 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:20,407 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:20,407 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:20,408 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:20,409 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:20,409 INFO  L85        PathProgramCache]: Analyzing trace with hash -2066146580, now seen corresponding path program 1 times
[2025-04-28 21:21:20,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:20,409 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140625640]
[2025-04-28 21:21:20,409 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:20,409 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:20,485 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-04-28 21:21:20,581 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-04-28 21:21:20,581 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:20,581 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:20,983 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:20,984 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:20,984 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140625640]
[2025-04-28 21:21:20,984 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140625640] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:20,984 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:20,984 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-04-28 21:21:20,985 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715388484]
[2025-04-28 21:21:20,985 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:20,987 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-28 21:21:20,987 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:20,988 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-28 21:21:20,989 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:20,989 INFO  L87              Difference]: Start difference. First operand 79 states and 88 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18)
[2025-04-28 21:21:21,101 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:21,102 INFO  L93              Difference]: Finished difference Result 83 states and 92 transitions.
[2025-04-28 21:21:21,102 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-04-28 21:21:21,103 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) Word has length 66
[2025-04-28 21:21:21,103 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:21,106 INFO  L225             Difference]: With dead ends: 83
[2025-04-28 21:21:21,108 INFO  L226             Difference]: Without dead ends: 83
[2025-04-28 21:21:21,109 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
[2025-04-28 21:21:21,110 INFO  L437           NwaCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:21,111 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 432 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-04-28 21:21:21,113 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2025-04-28 21:21:21,128 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83.
[2025-04-28 21:21:21,131 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 38 states have internal predecessors, (38), 24 states have call successors, (26), 20 states have call predecessors, (26), 22 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28)
[2025-04-28 21:21:21,134 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions.
[2025-04-28 21:21:21,134 INFO  L79                 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 66
[2025-04-28 21:21:21,135 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:21,136 INFO  L485      AbstractCegarLoop]: Abstraction has 83 states and 92 transitions.
[2025-04-28 21:21:21,137 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18)
[2025-04-28 21:21:21,137 INFO  L278                IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions.
[2025-04-28 21:21:21,139 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-04-28 21:21:21,139 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:21,139 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:21,139 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-04-28 21:21:21,142 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:21,143 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:21,143 INFO  L85        PathProgramCache]: Analyzing trace with hash 214843246, now seen corresponding path program 1 times
[2025-04-28 21:21:21,143 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:21,143 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78528723]
[2025-04-28 21:21:21,143 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:21,143 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:21,205 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-04-28 21:21:21,269 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-04-28 21:21:21,269 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:21,269 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:21,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:21,859 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:21,859 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78528723]
[2025-04-28 21:21:21,859 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78528723] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:21,859 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:21,859 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-04-28 21:21:21,859 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836158288]
[2025-04-28 21:21:21,859 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:21,860 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-04-28 21:21:21,860 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:21,861 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-04-28 21:21:21,861 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-04-28 21:21:21,861 INFO  L87              Difference]: Start difference. First operand 83 states and 92 transitions. Second operand  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-04-28 21:21:22,018 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:22,018 INFO  L93              Difference]: Finished difference Result 87 states and 96 transitions.
[2025-04-28 21:21:22,019 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-04-28 21:21:22,019 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18) Word has length 66
[2025-04-28 21:21:22,020 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:22,021 INFO  L225             Difference]: With dead ends: 87
[2025-04-28 21:21:22,021 INFO  L226             Difference]: Without dead ends: 87
[2025-04-28 21:21:22,021 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-04-28 21:21:22,022 INFO  L437           NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:22,024 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 483 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-04-28 21:21:22,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2025-04-28 21:21:22,038 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83.
[2025-04-28 21:21:22,039 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 38 states have internal predecessors, (38), 24 states have call successors, (26), 20 states have call predecessors, (26), 22 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28)
[2025-04-28 21:21:22,040 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions.
[2025-04-28 21:21:22,040 INFO  L79                 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 66
[2025-04-28 21:21:22,041 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:22,043 INFO  L485      AbstractCegarLoop]: Abstraction has 83 states and 92 transitions.
[2025-04-28 21:21:22,044 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-04-28 21:21:22,044 INFO  L278                IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions.
[2025-04-28 21:21:22,046 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-04-28 21:21:22,046 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:22,046 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:22,046 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-04-28 21:21:22,046 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:22,047 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:22,049 INFO  L85        PathProgramCache]: Analyzing trace with hash -1177292626, now seen corresponding path program 1 times
[2025-04-28 21:21:22,050 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:22,050 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377549861]
[2025-04-28 21:21:22,050 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:22,050 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:22,105 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-04-28 21:21:22,122 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-04-28 21:21:22,122 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:22,122 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:22,306 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:22,306 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:22,306 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377549861]
[2025-04-28 21:21:22,306 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377549861] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:22,307 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:22,307 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-28 21:21:22,307 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987622489]
[2025-04-28 21:21:22,307 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:22,307 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-04-28 21:21:22,307 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:22,308 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-04-28 21:21:22,308 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:22,310 INFO  L87              Difference]: Start difference. First operand 83 states and 92 transitions. Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18)
[2025-04-28 21:21:22,349 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:22,349 INFO  L93              Difference]: Finished difference Result 85 states and 93 transitions.
[2025-04-28 21:21:22,351 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-04-28 21:21:22,351 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 66
[2025-04-28 21:21:22,352 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:22,353 INFO  L225             Difference]: With dead ends: 85
[2025-04-28 21:21:22,353 INFO  L226             Difference]: Without dead ends: 81
[2025-04-28 21:21:22,353 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
[2025-04-28 21:21:22,354 INFO  L437           NwaCegarLoop]: 88 mSDtfsCounter, 1 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:22,354 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 253 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:22,358 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2025-04-28 21:21:22,367 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81.
[2025-04-28 21:21:22,367 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 37 states have internal predecessors, (37), 22 states have call successors, (24), 20 states have call predecessors, (24), 22 states have return successors, (26), 23 states have call predecessors, (26), 22 states have call successors, (26)
[2025-04-28 21:21:22,368 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions.
[2025-04-28 21:21:22,369 INFO  L79                 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 66
[2025-04-28 21:21:22,370 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:22,370 INFO  L485      AbstractCegarLoop]: Abstraction has 81 states and 87 transitions.
[2025-04-28 21:21:22,370 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18)
[2025-04-28 21:21:22,370 INFO  L278                IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions.
[2025-04-28 21:21:22,372 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-04-28 21:21:22,372 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:22,372 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:22,372 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-04-28 21:21:22,372 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:22,376 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:22,376 INFO  L85        PathProgramCache]: Analyzing trace with hash 173174962, now seen corresponding path program 1 times
[2025-04-28 21:21:22,376 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:22,377 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883762797]
[2025-04-28 21:21:22,377 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:22,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:22,421 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-04-28 21:21:22,453 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-04-28 21:21:22,454 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:22,454 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:22,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:22,671 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:22,671 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883762797]
[2025-04-28 21:21:22,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883762797] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:22,672 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:22,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-04-28 21:21:22,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846988551]
[2025-04-28 21:21:22,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:22,672 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-28 21:21:22,672 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:22,673 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-28 21:21:22,673 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:22,673 INFO  L87              Difference]: Start difference. First operand 81 states and 87 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18)
[2025-04-28 21:21:22,740 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:22,740 INFO  L93              Difference]: Finished difference Result 75 states and 81 transitions.
[2025-04-28 21:21:22,740 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-04-28 21:21:22,741 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) Word has length 66
[2025-04-28 21:21:22,741 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:22,741 INFO  L225             Difference]: With dead ends: 75
[2025-04-28 21:21:22,741 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:22,742 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
[2025-04-28 21:21:22,742 INFO  L437           NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 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
[2025-04-28 21:21:22,743 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:22,743 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:22,743 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:22,747 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)
[2025-04-28 21:21:22,747 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:22,747 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66
[2025-04-28 21:21:22,748 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:22,748 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:22,748 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18)
[2025-04-28 21:21:22,748 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:22,748 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:22,752 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:22,753 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-04-28 21:21:22,758 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2025-04-28 21:21:22,764 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:22,769 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:22 BoogieIcfgContainer
[2025-04-28 21:21:22,769 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:22,770 INFO  L158              Benchmark]: Toolchain (without parser) took 4747.86ms. Allocated memory is still 234.9MB. Free memory was 137.3MB in the beginning and 172.2MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:22,770 INFO  L158              Benchmark]: SmtParser took 0.37ms. Allocated memory is still 234.9MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:22,772 INFO  L158              Benchmark]: ChcToBoogie took 109.47ms. Allocated memory is still 234.9MB. Free memory was 136.6MB in the beginning and 132.7MB in the end (delta: 3.9MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:22,773 INFO  L158              Benchmark]: Boogie Preprocessor took 122.13ms. Allocated memory is still 234.9MB. Free memory was 132.7MB in the beginning and 129.0MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:22,773 INFO  L158              Benchmark]: RCFGBuilder took 994.37ms. Allocated memory is still 234.9MB. Free memory was 129.0MB in the beginning and 181.6MB in the end (delta: -52.6MB). Peak memory consumption was 60.7MB. Max. memory is 33.6GB.
[2025-04-28 21:21:22,774 INFO  L158              Benchmark]: TraceAbstraction took 3513.78ms. Allocated memory is still 234.9MB. Free memory was 180.6MB in the beginning and 172.2MB in the end (delta: 8.4MB). Peak memory consumption was 18.9MB. Max. memory is 33.6GB.
[2025-04-28 21:21:22,776 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.37ms. Allocated memory is still 234.9MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 109.47ms. Allocated memory is still 234.9MB. Free memory was 136.6MB in the beginning and 132.7MB in the end (delta: 3.9MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 122.13ms. Allocated memory is still 234.9MB. Free memory was 132.7MB in the beginning and 129.0MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 994.37ms. Allocated memory is still 234.9MB. Free memory was 129.0MB in the beginning and 181.6MB in the end (delta: -52.6MB). Peak memory consumption was 60.7MB. Max. memory is 33.6GB.
 * TraceAbstraction took 3513.78ms. Allocated memory is still 234.9MB. Free memory was 180.6MB in the beginning and 172.2MB in the end (delta: 8.4MB). Peak memory consumption was 18.9MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 24 procedures, 95 locations, 147 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 1830 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1395 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 435 mSDtfsCounter, 83 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 412 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!
[2025-04-28 21:21:22,797 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
