./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/this_external_call_2.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:58,994 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:59,030 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25c9fd2-f622-4e61-a6ee-eb54c056edcf/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:59,034 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:59,034 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:59,047 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:59,047 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:59,047 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:59,048 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:59,048 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:59,048 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:59,048 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:59,048 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:59,048 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:59,048 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:59,048 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:59,048 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:59,048 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:59,048 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:59,048 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:59,048 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:59,049 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:59,049 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:59,049 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:59,049 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:59,049 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:59,049 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:59,237 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:59,242 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:59,244 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:59,245 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:59,245 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:59,246 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25c9fd2-f622-4e61-a6ee-eb54c056edcf/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/this_external_call_2.sol_0_no_adts_000.smt2
[2025-05-07 17:26:59,247 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:59,249 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:59,506 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25c9fd2-f622-4e61-a6ee-eb54c056edcf/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/this_external_call_2.sol_0_no_adts_000.smt2
[2025-05-07 17:26:59,509 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:59,510 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:59,511 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:59,511 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:59,511 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:59,514 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,564 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59 Unit
[2025-05-07 17:26:59,564 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:59,565 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:59,565 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:59,565 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:59,580 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,580 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,615 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,615 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,625 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,626 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,628 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,633 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,637 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,659 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:59,660 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:59,660 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:59,660 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:59,661 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (1/1) ...
[2025-05-07 17:26:59,664 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:59,678 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:59,688 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:26:59,691 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:26:59,698 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:59,699 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:59,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:59,699 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_5_0 given in one single declaration
[2025-05-07 17:26:59,699 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_5_0
[2025-05-07 17:26:59,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_5_0
[2025-05-07 17:26:59,699 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_37_0 given in one single declaration
[2025-05-07 17:26:59,699 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_37_0
[2025-05-07 17:26:59,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_37_0
[2025-05-07 17:26:59,699 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_37_0 given in one single declaration
[2025-05-07 17:26:59,699 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_37_0
[2025-05-07 17:26:59,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_37_0
[2025-05-07 17:26:59,699 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_18_C_37_0 given in one single declaration
[2025-05-07 17:26:59,700 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_18_C_37_0
[2025-05-07 17:26:59,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_18_C_37_0
[2025-05-07 17:26:59,700 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_20_C_37_0 given in one single declaration
[2025-05-07 17:26:59,700 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_20_C_37_0
[2025-05-07 17:26:59,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_20_C_37_0
[2025-05-07 17:26:59,700 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_19_C_37_0 given in one single declaration
[2025-05-07 17:26:59,700 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_19_C_37_0
[2025-05-07 17:26:59,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_19_C_37_0
[2025-05-07 17:26:59,700 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_21_C_37_0 given in one single declaration
[2025-05-07 17:26:59,700 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_21_C_37_0
[2025-05-07 17:26:59,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_21_C_37_0
[2025-05-07 17:26:59,701 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_g__36_37_0 given in one single declaration
[2025-05-07 17:26:59,701 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_g__36_37_0
[2025-05-07 17:26:59,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_g__36_37_0
[2025-05-07 17:26:59,701 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_g__36_37_0 given in one single declaration
[2025-05-07 17:26:59,701 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_g__36_37_0
[2025-05-07 17:26:59,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_g__36_37_0
[2025-05-07 17:26:59,701 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_g__36_37_0 given in one single declaration
[2025-05-07 17:26:59,701 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_g__36_37_0
[2025-05-07 17:26:59,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_g__36_37_0
[2025-05-07 17:26:59,701 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_return_function_g__36_37_0 given in one single declaration
[2025-05-07 17:26:59,701 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_return_function_g__36_37_0
[2025-05-07 17:26:59,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_return_function_g__36_37_0
[2025-05-07 17:26:59,701 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_g_35_37_0 given in one single declaration
[2025-05-07 17:26:59,701 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_g_35_37_0
[2025-05-07 17:26:59,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_g_35_37_0
[2025-05-07 17:26:59,701 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_g__36_37_0 given in one single declaration
[2025-05-07 17:26:59,701 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_g__36_37_0
[2025-05-07 17:26:59,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_g__36_37_0
[2025-05-07 17:26:59,702 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__26_37_0 given in one single declaration
[2025-05-07 17:26:59,702 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__26_37_0 given in one single declaration
[2025-05-07 17:26:59,702 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__26_37_0 given in one single declaration
[2025-05-07 17:26:59,702 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__26_37_0 given in one single declaration
[2025-05-07 17:26:59,702 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__26_37_0 given in one single declaration
[2025-05-07 17:26:59,702 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__26_37_0
[2025-05-07 17:26:59,702 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_return_function_f__26_37_0 given in one single declaration
[2025-05-07 17:26:59,703 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_return_function_f__26_37_0
[2025-05-07 17:26:59,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_return_function_f__26_37_0
[2025-05-07 17:26:59,703 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_10_function_g__36_37_0 given in one single declaration
[2025-05-07 17:26:59,703 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_10_function_g__36_37_0
[2025-05-07 17:26:59,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_10_function_g__36_37_0
[2025-05-07 17:26:59,703 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_f_25_37_0 given in one single declaration
[2025-05-07 17:26:59,703 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_f_25_37_0
[2025-05-07 17:26:59,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_f_25_37_0
[2025-05-07 17:26:59,703 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_function_f__26_37_0 given in one single declaration
[2025-05-07 17:26:59,703 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_function_f__26_37_0
[2025-05-07 17:26:59,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_function_f__26_37_0
[2025-05-07 17:26:59,703 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:59,703 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:59,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:59,850 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:59,851 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:00,114 INFO  L?                        ?]: Removed 246 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:00,114 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:00,125 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:00,126 INFO  L312             CfgBuilder]: Removed 12 assume(true) statements.
[2025-05-07 17:27:00,126 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:00 BoogieIcfgContainer
[2025-05-07 17:27:00,126 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:00,128 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:00,128 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:00,132 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:00,132 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:59" (1/3) ...
[2025-05-07 17:27:00,133 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432bf4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:00, skipping insertion in model container
[2025-05-07 17:27:00,133 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:59" (2/3) ...
[2025-05-07 17:27:00,133 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432bf4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:00, skipping insertion in model container
[2025-05-07 17:27:00,133 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:00" (3/3) ...
[2025-05-07 17:27:00,134 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:00,145 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:00,147 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 24 procedures, 96 locations, 148 edges, 24 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:00,175 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:00,184 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;@32dda958, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:00,184 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:00,187 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 96 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 43 states have internal predecessors, (43), 33 states have call successors, (35), 23 states have call predecessors, (35), 23 states have return successors, (35), 29 states have call predecessors, (35), 33 states have call successors, (35)
[2025-05-07 17:27:00,193 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:27:00,193 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:00,194 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:00,194 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:00,197 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:00,198 INFO  L85        PathProgramCache]: Analyzing trace with hash 2070266159, now seen corresponding path program 1 times
[2025-05-07 17:27:00,203 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:00,203 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318928445]
[2025-05-07 17:27:00,203 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:00,204 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:00,251 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:27:00,327 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:27:00,327 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:00,327 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:00,564 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 17:27:00,564 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:00,565 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318928445]
[2025-05-07 17:27:00,565 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318928445] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:00,565 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:00,568 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:27:00,569 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953274705]
[2025-05-07 17:27:00,570 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:00,574 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:27:00,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:00,603 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:27:00,604 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:00,606 INFO  L87              Difference]: Start difference. First operand  has 96 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 43 states have internal predecessors, (43), 33 states have call successors, (35), 23 states have call predecessors, (35), 23 states have return successors, (35), 29 states have call predecessors, (35), 33 states have call successors, (35) Second operand  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:27:00,724 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:00,724 INFO  L93              Difference]: Finished difference Result 94 states and 110 transitions.
[2025-05-07 17:27:00,725 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:27:00,727 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18) Word has length 65
[2025-05-07 17:27:00,727 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:00,735 INFO  L225             Difference]: With dead ends: 94
[2025-05-07 17:27:00,735 INFO  L226             Difference]: Without dead ends: 92
[2025-05-07 17:27:00,737 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:00,740 INFO  L437           NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:00,741 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 601 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:00,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2025-05-07 17:27:00,774 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2025-05-07 17:27:00,775 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 40 states have internal predecessors, (40), 31 states have call successors, (33), 23 states have call predecessors, (33), 23 states have return successors, (33), 28 states have call predecessors, (33), 31 states have call successors, (33)
[2025-05-07 17:27:00,779 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions.
[2025-05-07 17:27:00,779 INFO  L79                 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 65
[2025-05-07 17:27:00,780 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:00,780 INFO  L485      AbstractCegarLoop]: Abstraction has 92 states and 106 transitions.
[2025-05-07 17:27:00,780 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:27:00,780 INFO  L278                IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions.
[2025-05-07 17:27:00,782 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:27:00,782 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:00,782 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:00,782 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:00,782 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:00,783 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:00,783 INFO  L85        PathProgramCache]: Analyzing trace with hash -61100005, now seen corresponding path program 1 times
[2025-05-07 17:27:00,783 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:00,783 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653066431]
[2025-05-07 17:27:00,783 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:00,783 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:00,814 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:27:00,838 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:27:00,838 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:00,838 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:00,952 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 17:27:00,952 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:00,952 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653066431]
[2025-05-07 17:27:00,952 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653066431] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:00,952 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:00,953 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:00,953 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276393172]
[2025-05-07 17:27:00,953 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:00,954 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:00,954 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:00,955 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:00,955 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:00,955 INFO  L87              Difference]: Start difference. First operand 92 states and 106 transitions. Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)
[2025-05-07 17:27:00,968 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:00,968 INFO  L93              Difference]: Finished difference Result 96 states and 111 transitions.
[2025-05-07 17:27:00,969 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:00,969 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 68
[2025-05-07 17:27:00,970 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:00,970 INFO  L225             Difference]: With dead ends: 96
[2025-05-07 17:27:00,971 INFO  L226             Difference]: Without dead ends: 92
[2025-05-07 17:27:00,971 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:00,971 INFO  L437           NwaCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:00,971 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 314 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:00,972 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2025-05-07 17:27:00,977 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90.
[2025-05-07 17:27:00,977 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90 states, 37 states have (on average 1.054054054054054) internal successors, (39), 39 states have internal predecessors, (39), 29 states have call successors, (31), 23 states have call predecessors, (31), 23 states have return successors, (31), 27 states have call predecessors, (31), 29 states have call successors, (31)
[2025-05-07 17:27:00,978 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions.
[2025-05-07 17:27:00,978 INFO  L79                 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 68
[2025-05-07 17:27:00,979 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:00,979 INFO  L485      AbstractCegarLoop]: Abstraction has 90 states and 101 transitions.
[2025-05-07 17:27:00,979 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)
[2025-05-07 17:27:00,979 INFO  L278                IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions.
[2025-05-07 17:27:00,980 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:27:00,980 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:00,981 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:00,981 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:00,981 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:00,981 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:00,981 INFO  L85        PathProgramCache]: Analyzing trace with hash -395327585, now seen corresponding path program 1 times
[2025-05-07 17:27:00,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:00,981 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849614672]
[2025-05-07 17:27:00,981 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:00,982 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:01,008 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:27:01,023 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:27:01,023 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:01,023 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:01,169 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 17:27:01,169 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:01,169 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849614672]
[2025-05-07 17:27:01,169 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849614672] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:01,169 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:01,170 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:01,170 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160871862]
[2025-05-07 17:27:01,170 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:01,170 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:01,170 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:01,171 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:01,171 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:01,171 INFO  L87              Difference]: Start difference. First operand 90 states and 101 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:01,210 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:01,210 INFO  L93              Difference]: Finished difference Result 95 states and 107 transitions.
[2025-05-07 17:27:01,210 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:01,211 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:27:01,211 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:01,212 INFO  L225             Difference]: With dead ends: 95
[2025-05-07 17:27:01,212 INFO  L226             Difference]: Without dead ends: 95
[2025-05-07 17:27:01,212 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:01,213 INFO  L437           NwaCegarLoop]: 103 mSDtfsCounter, 1 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:01,213 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 500 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:01,214 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2025-05-07 17:27:01,221 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95.
[2025-05-07 17:27:01,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 41 states have internal predecessors, (41), 30 states have call successors, (32), 23 states have call predecessors, (32), 25 states have return successors, (34), 30 states have call predecessors, (34), 30 states have call successors, (34)
[2025-05-07 17:27:01,222 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions.
[2025-05-07 17:27:01,222 INFO  L79                 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 68
[2025-05-07 17:27:01,222 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:01,222 INFO  L485      AbstractCegarLoop]: Abstraction has 95 states and 107 transitions.
[2025-05-07 17:27:01,223 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:01,223 INFO  L278                IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions.
[2025-05-07 17:27:01,224 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:27:01,224 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:01,224 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:01,224 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:01,225 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:01,225 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:01,225 INFO  L85        PathProgramCache]: Analyzing trace with hash 1027107487, now seen corresponding path program 1 times
[2025-05-07 17:27:01,225 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:01,225 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249879860]
[2025-05-07 17:27:01,225 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:01,225 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:01,255 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:27:01,282 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:27:01,282 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:01,282 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:01,543 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 17:27:01,543 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:01,543 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249879860]
[2025-05-07 17:27:01,543 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249879860] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:01,543 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:01,543 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:01,544 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570472746]
[2025-05-07 17:27:01,544 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:01,544 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:01,544 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:01,545 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:01,545 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:01,545 INFO  L87              Difference]: Start difference. First operand 95 states and 107 transitions. Second operand  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:01,626 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:01,626 INFO  L93              Difference]: Finished difference Result 93 states and 104 transitions.
[2025-05-07 17:27:01,626 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:01,626 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:27:01,627 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:01,627 INFO  L225             Difference]: With dead ends: 93
[2025-05-07 17:27:01,627 INFO  L226             Difference]: Without dead ends: 90
[2025-05-07 17:27:01,628 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:01,628 INFO  L437           NwaCegarLoop]: 92 mSDtfsCounter, 1 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:01,628 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 624 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:01,629 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2025-05-07 17:27:01,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2025-05-07 17:27:01,632 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90 states, 37 states have (on average 1.054054054054054) internal successors, (39), 39 states have internal predecessors, (39), 28 states have call successors, (29), 22 states have call predecessors, (29), 24 states have return successors, (31), 28 states have call predecessors, (31), 28 states have call successors, (31)
[2025-05-07 17:27:01,633 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions.
[2025-05-07 17:27:01,633 INFO  L79                 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 68
[2025-05-07 17:27:01,633 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:01,633 INFO  L485      AbstractCegarLoop]: Abstraction has 90 states and 99 transitions.
[2025-05-07 17:27:01,633 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:01,633 INFO  L278                IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions.
[2025-05-07 17:27:01,634 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:27:01,634 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:01,635 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:01,635 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:27:01,635 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:01,635 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:01,635 INFO  L85        PathProgramCache]: Analyzing trace with hash 1000435263, now seen corresponding path program 1 times
[2025-05-07 17:27:01,635 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:01,635 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94024760]
[2025-05-07 17:27:01,635 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:01,636 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:01,659 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:27:01,672 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:27:01,673 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:01,673 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:01,746 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 17:27:01,746 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:01,746 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94024760]
[2025-05-07 17:27:01,746 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94024760] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:01,746 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:01,746 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:01,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51931423]
[2025-05-07 17:27:01,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:01,747 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:01,747 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:01,747 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:01,747 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:01,748 INFO  L87              Difference]: Start difference. First operand 90 states and 99 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:01,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:01,767 INFO  L93              Difference]: Finished difference Result 51 states and 53 transitions.
[2025-05-07 17:27:01,767 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:01,767 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:27:01,767 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:01,768 INFO  L225             Difference]: With dead ends: 51
[2025-05-07 17:27:01,768 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:01,768 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:01,768 INFO  L437           NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:01,769 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 223 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:01,769 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:01,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:01,769 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:27:01,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:01,770 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68
[2025-05-07 17:27:01,770 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:01,770 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:01,770 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:01,770 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:01,770 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:01,772 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:01,773 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:27:01,776 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2025-05-07 17:27:01,778 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:01,781 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:01 BoogieIcfgContainer
[2025-05-07 17:27:01,781 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:01,782 INFO  L158              Benchmark]: Toolchain (without parser) took 2271.82ms. Allocated memory is still 234.9MB. Free memory was 143.6MB in the beginning and 114.3MB in the end (delta: 29.3MB). Peak memory consumption was 30.4MB. Max. memory is 33.6GB.
[2025-05-07 17:27:01,782 INFO  L158              Benchmark]: SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 173.3MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:01,783 INFO  L158              Benchmark]: ChcToBoogie took 53.51ms. Allocated memory is still 234.9MB. Free memory was 143.5MB in the beginning and 140.1MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:01,783 INFO  L158              Benchmark]: Boogie Preprocessor took 93.92ms. Allocated memory is still 234.9MB. Free memory was 140.0MB in the beginning and 136.5MB in the end (delta: 3.5MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:01,783 INFO  L158              Benchmark]: RCFGBuilder took 466.52ms. Allocated memory is still 234.9MB. Free memory was 136.5MB in the beginning and 163.6MB in the end (delta: -27.0MB). Peak memory consumption was 26.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:01,783 INFO  L158              Benchmark]: TraceAbstraction took 1653.02ms. Allocated memory is still 234.9MB. Free memory was 163.2MB in the beginning and 114.3MB in the end (delta: 48.8MB). Peak memory consumption was 53.9MB. Max. memory is 33.6GB.
[2025-05-07 17:27:01,784 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 173.3MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 53.51ms. Allocated memory is still 234.9MB. Free memory was 143.5MB in the beginning and 140.1MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 93.92ms. Allocated memory is still 234.9MB. Free memory was 140.0MB in the beginning and 136.5MB in the end (delta: 3.5MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 466.52ms. Allocated memory is still 234.9MB. Free memory was 136.5MB in the beginning and 163.6MB in the end (delta: -27.0MB). Peak memory consumption was 26.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1653.02ms. Allocated memory is still 234.9MB. Free memory was 163.2MB in the beginning and 114.3MB in the end (delta: 48.8MB). Peak memory consumption was 53.9MB. 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, 96 locations, 148 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 2262 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1811 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 451 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:27:01,797 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
sat
