./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/array_branches_1d.sol_2_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:58,587 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:58,623 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03394720-4a66-4af9-baf4-1ab5dbae967f/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:58,626 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:58,627 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:58,639 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:58,640 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:58,640 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:58,640 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:58,640 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:58,640 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:58,640 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:58,640 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:58,640 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:58,640 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:58,641 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:58,641 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:58,641 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:58,641 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:58,641 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:58,641 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:58,641 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:58,641 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:58,641 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:58,641 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:58,642 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:58,642 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:58,824 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:58,831 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:58,833 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:58,834 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:58,834 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:58,835 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03394720-4a66-4af9-baf4-1ab5dbae967f/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/array_branches_1d.sol_2_no_adts_000.smt2
[2025-05-07 17:27:58,837 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:58,839 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:59,058 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03394720-4a66-4af9-baf4-1ab5dbae967f/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/array_branches_1d.sol_2_no_adts_000.smt2
[2025-05-07 17:27:59,060 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:59,061 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:59,061 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:59,062 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:59,062 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:59,063 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,092 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59 Unit
[2025-05-07 17:27:59,092 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:59,093 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:59,093 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:59,093 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:59,105 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,105 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,126 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,126 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,130 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,131 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,133 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,134 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,136 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,146 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:59,146 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:59,146 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:59,146 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:59,147 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (1/1) ...
[2025-05-07 17:27:59,149 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:59,158 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:59,168 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 17:27:59,170 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 17:27:59,180 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:59,180 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:59,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:59,180 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_11_0 given in one single declaration
[2025-05-07 17:27:59,180 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_11_0
[2025-05-07 17:27:59,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_11_0
[2025-05-07 17:27:59,180 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_45_0 given in one single declaration
[2025-05-07 17:27:59,180 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_45_0
[2025-05-07 17:27:59,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_45_0
[2025-05-07 17:27:59,180 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_45_0 given in one single declaration
[2025-05-07 17:27:59,181 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_45_0
[2025-05-07 17:27:59,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_45_0
[2025-05-07 17:27:59,181 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_18_C_45_0 given in one single declaration
[2025-05-07 17:27:59,181 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_18_C_45_0
[2025-05-07 17:27:59,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_18_C_45_0
[2025-05-07 17:27:59,181 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_20_C_45_0 given in one single declaration
[2025-05-07 17:27:59,181 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_20_C_45_0
[2025-05-07 17:27:59,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_20_C_45_0
[2025-05-07 17:27:59,181 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_19_C_45_0 given in one single declaration
[2025-05-07 17:27:59,181 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_19_C_45_0
[2025-05-07 17:27:59,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_19_C_45_0
[2025-05-07 17:27:59,181 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_21_C_45_0 given in one single declaration
[2025-05-07 17:27:59,182 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_21_C_45_0
[2025-05-07 17:27:59,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_21_C_45_0
[2025-05-07 17:27:59,182 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,182 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__44_45_0
[2025-05-07 17:27:59,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__44_45_0
[2025-05-07 17:27:59,182 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,182 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__44_45_0
[2025-05-07 17:27:59,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__44_45_0
[2025-05-07 17:27:59,182 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,182 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__44_45_0
[2025-05-07 17:27:59,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__44_45_0
[2025-05-07 17:27:59,182 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_43_45_0 given in one single declaration
[2025-05-07 17:27:59,182 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_43_45_0
[2025-05-07 17:27:59,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_43_45_0
[2025-05-07 17:27:59,183 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,183 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__44_45_0
[2025-05-07 17:27:59,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__44_45_0
[2025-05-07 17:27:59,183 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,183 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__44_45_0
[2025-05-07 17:27:59,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__44_45_0
[2025-05-07 17:27:59,183 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_if_true_f_27_45_0 given in one single declaration
[2025-05-07 17:27:59,183 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_if_true_f_27_45_0
[2025-05-07 17:27:59,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_if_true_f_27_45_0
[2025-05-07 17:27:59,183 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_if_header_f_34_45_0 given in one single declaration
[2025-05-07 17:27:59,183 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_if_header_f_34_45_0
[2025-05-07 17:27:59,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_if_header_f_34_45_0
[2025-05-07 17:27:59,183 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,183 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_function_f__44_45_0
[2025-05-07 17:27:59,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_function_f__44_45_0
[2025-05-07 17:27:59,184 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_f_43_45_0 given in one single declaration
[2025-05-07 17:27:59,184 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_f_43_45_0
[2025-05-07 17:27:59,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_f_43_45_0
[2025-05-07 17:27:59,184 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_if_false_f_33_45_0 given in one single declaration
[2025-05-07 17:27:59,184 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_if_false_f_33_45_0
[2025-05-07 17:27:59,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_if_false_f_33_45_0
[2025-05-07 17:27:59,184 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,184 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__44_45_0
[2025-05-07 17:27:59,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__44_45_0
[2025-05-07 17:27:59,184 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,184 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_f__44_45_0
[2025-05-07 17:27:59,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_f__44_45_0
[2025-05-07 17:27:59,184 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,184 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_f__44_45_0
[2025-05-07 17:27:59,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_f__44_45_0
[2025-05-07 17:27:59,185 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_f__44_45_0 given in one single declaration
[2025-05-07 17:27:59,185 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_f__44_45_0
[2025-05-07 17:27:59,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_f__44_45_0
[2025-05-07 17:27:59,185 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:59,185 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:59,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:59,325 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:59,327 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:59,566 INFO  L?                        ?]: Removed 181 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:59,566 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:59,576 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:59,576 INFO  L312             CfgBuilder]: Removed 11 assume(true) statements.
[2025-05-07 17:27:59,577 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:59 BoogieIcfgContainer
[2025-05-07 17:27:59,577 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:59,579 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:59,579 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:59,582 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:59,583 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:59" (1/3) ...
[2025-05-07 17:27:59,583 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1369295a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:59, skipping insertion in model container
[2025-05-07 17:27:59,584 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:59" (2/3) ...
[2025-05-07 17:27:59,584 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1369295a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:59, skipping insertion in model container
[2025-05-07 17:27:59,584 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:59" (3/3) ...
[2025-05-07 17:27:59,585 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:59,595 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:59,597 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 24 procedures, 95 locations, 145 edges, 24 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:59,630 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:59,641 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;@4172fae8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:59,641 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:59,644 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 95 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 46 states have internal predecessors, (46), 28 states have call successors, (33), 23 states have call predecessors, (33), 23 states have return successors, (33), 25 states have call predecessors, (33), 28 states have call successors, (33)
[2025-05-07 17:27:59,652 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:59,652 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:59,653 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 17:27:59,653 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:59,657 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:59,657 INFO  L85        PathProgramCache]: Analyzing trace with hash -281110532, now seen corresponding path program 1 times
[2025-05-07 17:27:59,662 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:59,663 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630361759]
[2025-05-07 17:27:59,663 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:59,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:59,707 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:59,738 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:59,738 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:59,739 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:59,845 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 17:27:59,846 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:59,846 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630361759]
[2025-05-07 17:27:59,846 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630361759] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:59,846 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:59,849 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:27:59,850 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185137308]
[2025-05-07 17:27:59,850 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:59,853 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:27:59,854 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:59,873 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:27:59,874 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:27:59,876 INFO  L87              Difference]: Start difference. First operand  has 95 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 46 states have internal predecessors, (46), 28 states have call successors, (33), 23 states have call predecessors, (33), 23 states have return successors, (33), 25 states have call predecessors, (33), 28 states have call successors, (33) 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 17:27:59,894 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:59,895 INFO  L93              Difference]: Finished difference Result 90 states and 105 transitions.
[2025-05-07 17:27:59,895 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:27:59,896 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 17:27:59,896 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:59,913 INFO  L225             Difference]: With dead ends: 90
[2025-05-07 17:27:59,914 INFO  L226             Difference]: Without dead ends: 89
[2025-05-07 17:27:59,915 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 17:27:59,918 INFO  L437           NwaCegarLoop]: 105 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, 105 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 17:27:59,918 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:59,930 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2025-05-07 17:27:59,955 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89.
[2025-05-07 17:27:59,956 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 42 states have internal predecessors, (42), 27 states have call successors, (31), 22 states have call predecessors, (31), 22 states have return successors, (31), 24 states have call predecessors, (31), 27 states have call successors, (31)
[2025-05-07 17:27:59,961 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 104 transitions.
[2025-05-07 17:27:59,962 INFO  L79                 Accepts]: Start accepts. Automaton has 89 states and 104 transitions. Word has length 51
[2025-05-07 17:27:59,963 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:59,963 INFO  L485      AbstractCegarLoop]: Abstraction has 89 states and 104 transitions.
[2025-05-07 17:27:59,963 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 17:27:59,963 INFO  L278                IsEmpty]: Start isEmpty. Operand 89 states and 104 transitions.
[2025-05-07 17:27:59,966 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2025-05-07 17:27:59,966 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:59,966 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]
[2025-05-07 17:27:59,971 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:59,971 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:59,972 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:59,972 INFO  L85        PathProgramCache]: Analyzing trace with hash -1817788788, now seen corresponding path program 1 times
[2025-05-07 17:27:59,972 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:59,972 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43339259]
[2025-05-07 17:27:59,972 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:59,973 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:00,008 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes.
[2025-05-07 17:28:00,053 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements.
[2025-05-07 17:28:00,053 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:00,053 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:00,203 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 17:28:00,203 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:00,204 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43339259]
[2025-05-07 17:28:00,204 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43339259] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:00,204 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:00,204 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:00,204 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199525267]
[2025-05-07 17:28:00,204 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:00,205 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:00,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:00,206 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:00,206 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:00,207 INFO  L87              Difference]: Start difference. First operand 89 states and 104 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16)
[2025-05-07 17:28:00,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:00,257 INFO  L93              Difference]: Finished difference Result 93 states and 108 transitions.
[2025-05-07 17:28:00,258 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:00,258 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 59
[2025-05-07 17:28:00,258 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:00,259 INFO  L225             Difference]: With dead ends: 93
[2025-05-07 17:28:00,259 INFO  L226             Difference]: Without dead ends: 93
[2025-05-07 17:28:00,260 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 17:28:00,260 INFO  L437           NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 495 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 17:28:00,260 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 495 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:00,261 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2025-05-07 17:28:00,266 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2025-05-07 17:28:00,266 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 44 states have internal predecessors, (44), 27 states have call successors, (31), 22 states have call predecessors, (31), 24 states have return successors, (33), 26 states have call predecessors, (33), 27 states have call successors, (33)
[2025-05-07 17:28:00,267 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions.
[2025-05-07 17:28:00,268 INFO  L79                 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 59
[2025-05-07 17:28:00,268 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:00,268 INFO  L485      AbstractCegarLoop]: Abstraction has 93 states and 108 transitions.
[2025-05-07 17:28:00,268 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16)
[2025-05-07 17:28:00,268 INFO  L278                IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions.
[2025-05-07 17:28:00,269 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2025-05-07 17:28:00,269 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:00,269 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]
[2025-05-07 17:28:00,269 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:00,269 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:00,270 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:00,270 INFO  L85        PathProgramCache]: Analyzing trace with hash 795847360, now seen corresponding path program 1 times
[2025-05-07 17:28:00,270 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:00,270 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796048574]
[2025-05-07 17:28:00,270 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:00,270 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:00,296 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes.
[2025-05-07 17:28:00,310 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements.
[2025-05-07 17:28:00,310 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:00,310 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:00,411 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 17:28:00,412 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:00,412 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796048574]
[2025-05-07 17:28:00,412 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796048574] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:00,412 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:00,412 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:00,412 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543470962]
[2025-05-07 17:28:00,412 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:00,412 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:00,413 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:00,413 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:00,413 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:00,413 INFO  L87              Difference]: Start difference. First operand 93 states and 108 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16)
[2025-05-07 17:28:00,454 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:00,454 INFO  L93              Difference]: Finished difference Result 97 states and 112 transitions.
[2025-05-07 17:28:00,455 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:00,455 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 59
[2025-05-07 17:28:00,455 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:00,456 INFO  L225             Difference]: With dead ends: 97
[2025-05-07 17:28:00,456 INFO  L226             Difference]: Without dead ends: 97
[2025-05-07 17:28:00,456 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 17:28:00,456 INFO  L437           NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 512 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 17:28:00,457 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 512 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:00,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2025-05-07 17:28:00,461 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93.
[2025-05-07 17:28:00,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 44 states have internal predecessors, (44), 27 states have call successors, (31), 22 states have call predecessors, (31), 24 states have return successors, (33), 26 states have call predecessors, (33), 27 states have call successors, (33)
[2025-05-07 17:28:00,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions.
[2025-05-07 17:28:00,462 INFO  L79                 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 59
[2025-05-07 17:28:00,462 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:00,462 INFO  L485      AbstractCegarLoop]: Abstraction has 93 states and 108 transitions.
[2025-05-07 17:28:00,462 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16)
[2025-05-07 17:28:00,462 INFO  L278                IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions.
[2025-05-07 17:28:00,463 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2025-05-07 17:28:00,463 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:00,463 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]
[2025-05-07 17:28:00,464 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:00,464 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:00,464 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:00,464 INFO  L85        PathProgramCache]: Analyzing trace with hash -697090999, now seen corresponding path program 1 times
[2025-05-07 17:28:00,464 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:00,464 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546645435]
[2025-05-07 17:28:00,464 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:00,464 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:00,489 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes.
[2025-05-07 17:28:00,503 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements.
[2025-05-07 17:28:00,503 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:00,503 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:00,599 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 17:28:00,599 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:00,600 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546645435]
[2025-05-07 17:28:00,600 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546645435] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:00,600 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:00,600 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:00,600 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299082515]
[2025-05-07 17:28:00,600 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:00,600 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:00,601 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:00,601 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:00,601 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:00,601 INFO  L87              Difference]: Start difference. First operand 93 states and 108 transitions. Second operand  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)
[2025-05-07 17:28:00,610 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:00,610 INFO  L93              Difference]: Finished difference Result 97 states and 112 transitions.
[2025-05-07 17:28:00,610 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:00,611 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 63
[2025-05-07 17:28:00,611 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:00,611 INFO  L225             Difference]: With dead ends: 97
[2025-05-07 17:28:00,611 INFO  L226             Difference]: Without dead ends: 93
[2025-05-07 17:28:00,612 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 17:28:00,612 INFO  L437           NwaCegarLoop]: 104 mSDtfsCounter, 1 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 305 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 17:28:00,612 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 305 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:00,613 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2025-05-07 17:28:00,619 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91.
[2025-05-07 17:28:00,619 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 41 states have (on average 1.048780487804878) internal successors, (43), 43 states have internal predecessors, (43), 25 states have call successors, (29), 22 states have call predecessors, (29), 24 states have return successors, (31), 25 states have call predecessors, (31), 25 states have call successors, (31)
[2025-05-07 17:28:00,620 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions.
[2025-05-07 17:28:00,621 INFO  L79                 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 63
[2025-05-07 17:28:00,621 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:00,621 INFO  L485      AbstractCegarLoop]: Abstraction has 91 states and 103 transitions.
[2025-05-07 17:28:00,621 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)
[2025-05-07 17:28:00,621 INFO  L278                IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions.
[2025-05-07 17:28:00,622 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2025-05-07 17:28:00,622 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:00,623 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]
[2025-05-07 17:28:00,623 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:28:00,623 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:00,623 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:00,623 INFO  L85        PathProgramCache]: Analyzing trace with hash 1784032288, now seen corresponding path program 1 times
[2025-05-07 17:28:00,624 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:00,624 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410338222]
[2025-05-07 17:28:00,624 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:00,624 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:00,654 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes.
[2025-05-07 17:28:00,666 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements.
[2025-05-07 17:28:00,666 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:00,666 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:00,893 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 17:28:00,893 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:00,893 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410338222]
[2025-05-07 17:28:00,893 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410338222] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:00,893 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:00,893 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2025-05-07 17:28:00,894 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309644840]
[2025-05-07 17:28:00,894 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:00,894 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-05-07 17:28:00,894 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:00,895 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-05-07 17:28:00,895 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2025-05-07 17:28:00,895 INFO  L87              Difference]: Start difference. First operand 91 states and 103 transitions. Second operand  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17)
[2025-05-07 17:28:01,110 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:01,110 INFO  L93              Difference]: Finished difference Result 99 states and 113 transitions.
[2025-05-07 17:28:01,111 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2025-05-07 17:28:01,111 INFO  L79                 Accepts]: Start accepts. Automaton has  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17) Word has length 63
[2025-05-07 17:28:01,112 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:01,112 INFO  L225             Difference]: With dead ends: 99
[2025-05-07 17:28:01,113 INFO  L226             Difference]: Without dead ends: 99
[2025-05-07 17:28:01,113 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210
[2025-05-07 17:28:01,113 INFO  L437           NwaCegarLoop]: 94 mSDtfsCounter, 4 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:01,114 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1082 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-05-07 17:28:01,114 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2025-05-07 17:28:01,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95.
[2025-05-07 17:28:01,121 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 45 states have internal predecessors, (45), 25 states have call successors, (29), 22 states have call predecessors, (29), 26 states have return successors, (35), 27 states have call predecessors, (35), 25 states have call successors, (35)
[2025-05-07 17:28:01,121 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions.
[2025-05-07 17:28:01,122 INFO  L79                 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 63
[2025-05-07 17:28:01,122 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:01,122 INFO  L485      AbstractCegarLoop]: Abstraction has 95 states and 109 transitions.
[2025-05-07 17:28:01,122 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17)
[2025-05-07 17:28:01,122 INFO  L278                IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions.
[2025-05-07 17:28:01,123 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2025-05-07 17:28:01,123 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:01,123 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]
[2025-05-07 17:28:01,124 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:28:01,124 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:01,124 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:01,124 INFO  L85        PathProgramCache]: Analyzing trace with hash 909815871, now seen corresponding path program 1 times
[2025-05-07 17:28:01,124 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:01,124 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600220665]
[2025-05-07 17:28:01,124 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:01,125 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:01,149 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes.
[2025-05-07 17:28:01,160 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements.
[2025-05-07 17:28:01,160 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:01,160 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:01,361 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:01,361 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:01,361 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600220665]
[2025-05-07 17:28:01,361 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600220665] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:01,361 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:01,361 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2025-05-07 17:28:01,362 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276773090]
[2025-05-07 17:28:01,362 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:01,362 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-05-07 17:28:01,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:01,362 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-05-07 17:28:01,362 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2025-05-07 17:28:01,363 INFO  L87              Difference]: Start difference. First operand 95 states and 109 transitions. Second operand  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17)
[2025-05-07 17:28:01,531 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:01,531 INFO  L93              Difference]: Finished difference Result 99 states and 113 transitions.
[2025-05-07 17:28:01,532 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2025-05-07 17:28:01,532 INFO  L79                 Accepts]: Start accepts. Automaton has  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17) Word has length 63
[2025-05-07 17:28:01,532 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:01,533 INFO  L225             Difference]: With dead ends: 99
[2025-05-07 17:28:01,533 INFO  L226             Difference]: Without dead ends: 99
[2025-05-07 17:28:01,533 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210
[2025-05-07 17:28:01,534 INFO  L437           NwaCegarLoop]: 92 mSDtfsCounter, 5 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:01,534 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1062 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:28:01,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2025-05-07 17:28:01,538 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91.
[2025-05-07 17:28:01,539 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 41 states have (on average 1.048780487804878) internal successors, (43), 43 states have internal predecessors, (43), 25 states have call successors, (29), 22 states have call predecessors, (29), 24 states have return successors, (31), 25 states have call predecessors, (31), 25 states have call successors, (31)
[2025-05-07 17:28:01,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions.
[2025-05-07 17:28:01,539 INFO  L79                 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 63
[2025-05-07 17:28:01,539 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:01,539 INFO  L485      AbstractCegarLoop]: Abstraction has 91 states and 103 transitions.
[2025-05-07 17:28:01,539 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 7 states have call successors, (17)
[2025-05-07 17:28:01,540 INFO  L278                IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions.
[2025-05-07 17:28:01,540 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2025-05-07 17:28:01,540 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:01,540 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]
[2025-05-07 17:28:01,540 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:28:01,540 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:01,541 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:01,541 INFO  L85        PathProgramCache]: Analyzing trace with hash -353117641, now seen corresponding path program 1 times
[2025-05-07 17:28:01,541 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:01,541 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911244358]
[2025-05-07 17:28:01,541 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:01,541 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:01,563 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes.
[2025-05-07 17:28:01,580 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements.
[2025-05-07 17:28:01,580 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:01,580 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:01,681 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 17:28:01,681 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:01,681 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911244358]
[2025-05-07 17:28:01,681 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911244358] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:01,681 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:01,682 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:01,682 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905769424]
[2025-05-07 17:28:01,682 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:01,682 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:01,682 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:01,683 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:01,683 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:01,683 INFO  L87              Difference]: Start difference. First operand 91 states and 103 transitions. Second operand  has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:28:01,714 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:01,714 INFO  L93              Difference]: Finished difference Result 95 states and 107 transitions.
[2025-05-07 17:28:01,714 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:01,715 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 63
[2025-05-07 17:28:01,715 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:01,715 INFO  L225             Difference]: With dead ends: 95
[2025-05-07 17:28:01,715 INFO  L226             Difference]: Without dead ends: 95
[2025-05-07 17:28:01,716 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 17:28:01,716 INFO  L437           NwaCegarLoop]: 100 mSDtfsCounter, 1 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 487 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 17:28:01,716 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 487 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:01,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2025-05-07 17:28:01,720 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91.
[2025-05-07 17:28:01,721 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 41 states have (on average 1.048780487804878) internal successors, (43), 43 states have internal predecessors, (43), 25 states have call successors, (29), 22 states have call predecessors, (29), 24 states have return successors, (31), 25 states have call predecessors, (31), 25 states have call successors, (31)
[2025-05-07 17:28:01,721 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions.
[2025-05-07 17:28:01,721 INFO  L79                 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 63
[2025-05-07 17:28:01,721 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:01,721 INFO  L485      AbstractCegarLoop]: Abstraction has 91 states and 103 transitions.
[2025-05-07 17:28:01,722 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:28:01,722 INFO  L278                IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions.
[2025-05-07 17:28:01,722 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2025-05-07 17:28:01,722 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:01,722 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]
[2025-05-07 17:28:01,722 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-05-07 17:28:01,722 INFO  L403      AbstractCegarLoop]: === Iteration 8 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:01,723 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:01,723 INFO  L85        PathProgramCache]: Analyzing trace with hash 391116493, now seen corresponding path program 1 times
[2025-05-07 17:28:01,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:01,723 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020652274]
[2025-05-07 17:28:01,723 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:01,723 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:01,748 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes.
[2025-05-07 17:28:01,762 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements.
[2025-05-07 17:28:01,762 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:01,762 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:01,985 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 17:28:01,985 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:01,985 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020652274]
[2025-05-07 17:28:01,985 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020652274] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:01,985 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:01,985 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:01,985 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648324887]
[2025-05-07 17:28:01,985 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:01,986 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:01,986 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:01,987 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:01,987 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:01,987 INFO  L87              Difference]: Start difference. First operand 91 states and 103 transitions. Second operand  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 4 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:28:02,010 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:02,010 INFO  L93              Difference]: Finished difference Result 55 states and 63 transitions.
[2025-05-07 17:28:02,011 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:02,011 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 4 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 63
[2025-05-07 17:28:02,011 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:02,011 INFO  L225             Difference]: With dead ends: 55
[2025-05-07 17:28:02,011 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:02,011 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 17:28:02,012 INFO  L437           NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:02,012 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 173 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:02,012 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:02,012 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:02,013 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 17:28:02,013 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:02,013 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63
[2025-05-07 17:28:02,013 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:02,013 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:02,013 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 4 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:28:02,013 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:02,013 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:02,015 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:02,015 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-05-07 17:28:02,018 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:02,019 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:02,022 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:02 BoogieIcfgContainer
[2025-05-07 17:28:02,022 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:02,022 INFO  L158              Benchmark]: Toolchain (without parser) took 2961.38ms. Allocated memory is still 234.9MB. Free memory was 148.4MB in the beginning and 178.9MB in the end (delta: -30.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:02,022 INFO  L158              Benchmark]: SmtParser took 0.29ms. Allocated memory is still 234.9MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:02,022 INFO  L158              Benchmark]: ChcToBoogie took 31.20ms. Allocated memory is still 234.9MB. Free memory was 148.4MB in the beginning and 145.5MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:02,023 INFO  L158              Benchmark]: Boogie Preprocessor took 52.69ms. Allocated memory is still 234.9MB. Free memory was 145.5MB in the beginning and 141.6MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:02,023 INFO  L158              Benchmark]: RCFGBuilder took 430.66ms. Allocated memory is still 234.9MB. Free memory was 141.5MB in the beginning and 178.1MB in the end (delta: -36.7MB). Peak memory consumption was 43.0MB. Max. memory is 33.6GB.
[2025-05-07 17:28:02,023 INFO  L158              Benchmark]: TraceAbstraction took 2443.06ms. Allocated memory is still 234.9MB. Free memory was 177.8MB in the beginning and 178.9MB in the end (delta: -1.1MB). Peak memory consumption was 2.9MB. Max. memory is 33.6GB.
[2025-05-07 17:28:02,024 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.29ms. Allocated memory is still 234.9MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 31.20ms. Allocated memory is still 234.9MB. Free memory was 148.4MB in the beginning and 145.5MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 52.69ms. Allocated memory is still 234.9MB. Free memory was 145.5MB in the beginning and 141.6MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 430.66ms. Allocated memory is still 234.9MB. Free memory was 141.5MB in the beginning and 178.1MB in the end (delta: -36.7MB). Peak memory consumption was 43.0MB. Max. memory is 33.6GB.
 * TraceAbstraction took 2443.06ms. Allocated memory is still 234.9MB. Free memory was 177.8MB in the beginning and 178.9MB in the end (delta: -1.1MB). Peak memory consumption was 2.9MB. 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, 145 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 4221 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3459 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 762 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 54, 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, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 484 NumberOfCodeBlocks, 484 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 638 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 17:28:02,034 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
