./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/unary_add_overflows_correctly_struct.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:28:42,211 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:28:42,265 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e565174-1f44-437d-881c-6b525dd701c8/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:28:42,269 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:28:42,269 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:28:42,287 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:28:42,288 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:28:42,288 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:28:42,288 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:28:42,288 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:28:42,289 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:28:42,289 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:28:42,289 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:28:42,289 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:28:42,289 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:28:42,289 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:28:42,289 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:28:42,289 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:28:42,289 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:42,290 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:28:42,290 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:28:42,290 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:28:42,290 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:28:42,290 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:28:42,290 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:28:42,291 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:28:42,291 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:28:42,503 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:28:42,510 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:28:42,512 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:28:42,513 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:28:42,513 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:28:42,515 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e565174-1f44-437d-881c-6b525dd701c8/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/unary_add_overflows_correctly_struct.sol_0_no_adts_000.smt2
[2025-05-07 17:28:42,516 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:28:42,519 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:28:42,804 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e565174-1f44-437d-881c-6b525dd701c8/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/unary_add_overflows_correctly_struct.sol_0_no_adts_000.smt2
[2025-05-07 17:28:42,808 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:28:42,809 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:28:42,809 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:28:42,810 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:28:42,810 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:28:42,812 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,848 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42 Unit
[2025-05-07 17:28:42,848 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:28:42,849 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:28:42,849 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:28:42,849 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:28:42,860 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,861 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,888 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,888 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,894 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,895 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,897 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,900 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,901 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,911 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:28:42,912 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:28:42,912 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:28:42,912 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:28:42,913 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (1/1) ...
[2025-05-07 17:28:42,915 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:42,923 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:28:42,932 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 17:28:42,934 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 17:28:42,942 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:28:42,943 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:28:42,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:28:42,943 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:28:42,943 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:28:42,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:28:42,943 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_7_function_check__39_40_0 given in one single declaration
[2025-05-07 17:28:42,943 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_7_function_check__39_40_0
[2025-05-07 17:28:42,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_7_function_check__39_40_0
[2025-05-07 17:28:42,943 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_check__39_40_0 given in one single declaration
[2025-05-07 17:28:42,943 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_check__39_40_0
[2025-05-07 17:28:42,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_check__39_40_0
[2025-05-07 17:28:42,943 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_check__39_40_0 given in one single declaration
[2025-05-07 17:28:42,943 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_check__39_40_0
[2025-05-07 17:28:42,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_check__39_40_0
[2025-05-07 17:28:42,943 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_function_check__39_40_0 given in one single declaration
[2025-05-07 17:28:42,943 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_function_check__39_40_0
[2025-05-07 17:28:42,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_function_check__39_40_0
[2025-05-07 17:28:42,944 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_check_38_40_0 given in one single declaration
[2025-05-07 17:28:42,944 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_check_38_40_0
[2025-05-07 17:28:42,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_check_38_40_0
[2025-05-07 17:28:42,944 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_check__39_40_0 given in one single declaration
[2025-05-07 17:28:42,944 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_check__39_40_0
[2025-05-07 17:28:42,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_check__39_40_0
[2025-05-07 17:28:42,944 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_return_function_check__39_40_0 given in one single declaration
[2025-05-07 17:28:42,944 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_return_function_check__39_40_0
[2025-05-07 17:28:42,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_return_function_check__39_40_0
[2025-05-07 17:28:42,944 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_40_0 given in one single declaration
[2025-05-07 17:28:42,944 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_40_0
[2025-05-07 17:28:42,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_40_0
[2025-05-07 17:28:42,944 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_40_0 given in one single declaration
[2025-05-07 17:28:42,944 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_40_0
[2025-05-07 17:28:42,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_40_0
[2025-05-07 17:28:42,944 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_20_C_40_0 given in one single declaration
[2025-05-07 17:28:42,944 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_20_C_40_0
[2025-05-07 17:28:42,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_20_C_40_0
[2025-05-07 17:28:42,945 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_22_C_40_0 given in one single declaration
[2025-05-07 17:28:42,945 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_22_C_40_0
[2025-05-07 17:28:42,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_22_C_40_0
[2025-05-07 17:28:42,945 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_21_C_40_0 given in one single declaration
[2025-05-07 17:28:42,945 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_21_C_40_0
[2025-05-07 17:28:42,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_21_C_40_0
[2025-05-07 17:28:42,945 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_constructor_16_40_0 given in one single declaration
[2025-05-07 17:28:42,945 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_constructor_16_40_0
[2025-05-07 17:28:42,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_constructor_16_40_0
[2025-05-07 17:28:42,945 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_return_constructor_16_40_0 given in one single declaration
[2025-05-07 17:28:42,945 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_return_constructor_16_40_0
[2025-05-07 17:28:42,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_return_constructor_16_40_0
[2025-05-07 17:28:42,945 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18__15_40_0 given in one single declaration
[2025-05-07 17:28:42,945 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18__15_40_0
[2025-05-07 17:28:42,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18__15_40_0
[2025-05-07 17:28:42,945 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_constructor_16_40_0 given in one single declaration
[2025-05-07 17:28:42,945 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_constructor_16_40_0
[2025-05-07 17:28:42,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_constructor_16_40_0
[2025-05-07 17:28:42,945 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_23_C_40_0 given in one single declaration
[2025-05-07 17:28:42,945 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_23_C_40_0
[2025-05-07 17:28:42,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_23_C_40_0
[2025-05-07 17:28:42,946 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_inc_pre__24_40_0 given in one single declaration
[2025-05-07 17:28:42,946 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_inc_pre__24_40_0
[2025-05-07 17:28:42,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_inc_pre__24_40_0
[2025-05-07 17:28:42,946 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_inc_pre__24_40_0 given in one single declaration
[2025-05-07 17:28:42,946 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_inc_pre__24_40_0
[2025-05-07 17:28:42,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_inc_pre__24_40_0
[2025-05-07 17:28:42,946 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_return_function_inc_pre__24_40_0 given in one single declaration
[2025-05-07 17:28:42,946 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_return_function_inc_pre__24_40_0
[2025-05-07 17:28:42,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_return_function_inc_pre__24_40_0
[2025-05-07 17:28:42,946 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_inc_pre_23_40_0 given in one single declaration
[2025-05-07 17:28:42,946 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_inc_pre_23_40_0
[2025-05-07 17:28:42,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_inc_pre_23_40_0
[2025-05-07 17:28:42,946 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_inc_pre__24_40_0 given in one single declaration
[2025-05-07 17:28:42,946 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_inc_pre__24_40_0
[2025-05-07 17:28:42,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_inc_pre__24_40_0
[2025-05-07 17:28:42,947 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_inc_pre__24_40_0 given in one single declaration
[2025-05-07 17:28:42,947 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_inc_pre__24_40_0
[2025-05-07 17:28:42,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_inc_pre__24_40_0
[2025-05-07 17:28:42,947 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:28:42,947 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:28:42,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:28:43,074 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:28:43,075 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:28:43,288 INFO  L?                        ?]: Removed 207 outVars from TransFormulas that were not future-live.
[2025-05-07 17:28:43,288 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:28:43,297 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:28:43,297 INFO  L312             CfgBuilder]: Removed 11 assume(true) statements.
[2025-05-07 17:28:43,297 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:43 BoogieIcfgContainer
[2025-05-07 17:28:43,297 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:28:43,298 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:28:43,299 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:28:43,301 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:28:43,301 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:42" (1/3) ...
[2025-05-07 17:28:43,302 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edff0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:28:43, skipping insertion in model container
[2025-05-07 17:28:43,302 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:42" (2/3) ...
[2025-05-07 17:28:43,302 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edff0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:28:43, skipping insertion in model container
[2025-05-07 17:28:43,302 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:43" (3/3) ...
[2025-05-07 17:28:43,303 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:28:43,313 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:28:43,315 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 26 procedures, 101 locations, 146 edges, 26 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:28:43,343 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:28:43,350 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;@71b3904a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:28:43,350 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:28:43,353 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 101 states, 42 states have (on average 1.119047619047619) internal successors, (47), 47 states have internal predecessors, (47), 32 states have call successors, (33), 25 states have call predecessors, (33), 25 states have return successors, (33), 28 states have call predecessors, (33), 32 states have call successors, (33)
[2025-05-07 17:28:43,359 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:28:43,360 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:43,360 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:43,360 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:43,363 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:43,364 INFO  L85        PathProgramCache]: Analyzing trace with hash 1125776810, now seen corresponding path program 1 times
[2025-05-07 17:28:43,369 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:43,369 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642293859]
[2025-05-07 17:28:43,369 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:43,369 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:43,418 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:28:43,435 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:28:43,435 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:43,435 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:43,625 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 17:28:43,625 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:43,625 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642293859]
[2025-05-07 17:28:43,626 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642293859] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:43,626 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:43,628 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:43,629 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85455728]
[2025-05-07 17:28:43,630 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:43,647 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:43,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:43,667 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:43,668 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:43,670 INFO  L87              Difference]: Start difference. First operand  has 101 states, 42 states have (on average 1.119047619047619) internal successors, (47), 47 states have internal predecessors, (47), 32 states have call successors, (33), 25 states have call predecessors, (33), 25 states have return successors, (33), 28 states have call predecessors, (33), 32 states have call successors, (33) Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:28:43,714 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:43,715 INFO  L93              Difference]: Finished difference Result 98 states and 107 transitions.
[2025-05-07 17:28:43,716 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:43,718 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 66
[2025-05-07 17:28:43,718 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:43,726 INFO  L225             Difference]: With dead ends: 98
[2025-05-07 17:28:43,726 INFO  L226             Difference]: Without dead ends: 93
[2025-05-07 17:28:43,728 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 17:28:43,731 INFO  L437           NwaCegarLoop]: 106 mSDtfsCounter, 1 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:43,732 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 304 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:43,747 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2025-05-07 17:28:43,765 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2025-05-07 17:28:43,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 42 states have internal predecessors, (42), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (29), 26 states have call predecessors, (29), 29 states have call successors, (29)
[2025-05-07 17:28:43,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 100 transitions.
[2025-05-07 17:28:43,769 INFO  L79                 Accepts]: Start accepts. Automaton has 93 states and 100 transitions. Word has length 66
[2025-05-07 17:28:43,770 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:43,770 INFO  L485      AbstractCegarLoop]: Abstraction has 93 states and 100 transitions.
[2025-05-07 17:28:43,770 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:28:43,770 INFO  L278                IsEmpty]: Start isEmpty. Operand 93 states and 100 transitions.
[2025-05-07 17:28:43,771 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:28:43,771 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:43,772 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:43,772 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:28:43,772 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:43,772 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:43,772 INFO  L85        PathProgramCache]: Analyzing trace with hash 51451780, now seen corresponding path program 1 times
[2025-05-07 17:28:43,772 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:43,772 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151140957]
[2025-05-07 17:28:43,773 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:43,773 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:43,810 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:28:43,822 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:28:43,822 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:43,822 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:43,915 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 17:28:43,916 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:43,916 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151140957]
[2025-05-07 17:28:43,916 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151140957] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:43,916 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:43,916 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:43,916 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830312527]
[2025-05-07 17:28:43,916 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:43,917 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:43,917 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:43,918 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:43,918 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:43,918 INFO  L87              Difference]: Start difference. First operand 93 states and 100 transitions. Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:28:43,941 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:43,941 INFO  L93              Difference]: Finished difference Result 95 states and 101 transitions.
[2025-05-07 17:28:43,942 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:43,942 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 66
[2025-05-07 17:28:43,943 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:43,944 INFO  L225             Difference]: With dead ends: 95
[2025-05-07 17:28:43,944 INFO  L226             Difference]: Without dead ends: 91
[2025-05-07 17:28:43,944 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 17:28:43,945 INFO  L437           NwaCegarLoop]: 99 mSDtfsCounter, 1 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:43,945 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 287 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:43,946 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2025-05-07 17:28:43,949 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2025-05-07 17:28:43,950 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 41 states have internal predecessors, (41), 27 states have call successors, (27), 24 states have call predecessors, (27), 24 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27)
[2025-05-07 17:28:43,950 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions.
[2025-05-07 17:28:43,951 INFO  L79                 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 66
[2025-05-07 17:28:43,951 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:43,951 INFO  L485      AbstractCegarLoop]: Abstraction has 91 states and 95 transitions.
[2025-05-07 17:28:43,951 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:28:43,951 INFO  L278                IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions.
[2025-05-07 17:28:43,952 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:28:43,952 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:43,952 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:43,952 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:43,952 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:43,952 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:43,952 INFO  L85        PathProgramCache]: Analyzing trace with hash 407136392, now seen corresponding path program 1 times
[2025-05-07 17:28:43,952 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:43,953 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296378519]
[2025-05-07 17:28:43,953 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:43,953 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:43,973 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:28:43,994 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:28:43,994 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:43,995 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:44,132 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 17:28:44,133 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:44,133 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296378519]
[2025-05-07 17:28:44,133 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296378519] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:44,133 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:44,133 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:28:44,133 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449723689]
[2025-05-07 17:28:44,133 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:44,134 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:28:44,134 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:44,135 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:28:44,135 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:44,135 INFO  L87              Difference]: Start difference. First operand 91 states and 95 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, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:28:44,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:44,215 INFO  L93              Difference]: Finished difference Result 85 states and 89 transitions.
[2025-05-07 17:28:44,216 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:28:44,216 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, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) Word has length 66
[2025-05-07 17:28:44,216 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:44,216 INFO  L225             Difference]: With dead ends: 85
[2025-05-07 17:28:44,216 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:44,217 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 17:28:44,218 INFO  L437           NwaCegarLoop]: 85 mSDtfsCounter, 1 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:44,218 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 577 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:44,218 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:44,219 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:44,219 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 17:28:44,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:44,219 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66
[2025-05-07 17:28:44,219 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:44,219 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:44,219 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, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:28:44,219 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:44,219 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:44,222 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:44,222 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:44,225 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:28:44,227 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:44,230 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:44 BoogieIcfgContainer
[2025-05-07 17:28:44,230 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:44,231 INFO  L158              Benchmark]: Toolchain (without parser) took 1422.31ms. Allocated memory is still 234.9MB. Free memory was 151.3MB in the beginning and 102.2MB in the end (delta: 49.1MB). Peak memory consumption was 59.7MB. Max. memory is 33.6GB.
[2025-05-07 17:28:44,231 INFO  L158              Benchmark]: SmtParser took 0.31ms. Allocated memory is still 234.9MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:44,231 INFO  L158              Benchmark]: ChcToBoogie took 39.36ms. Allocated memory is still 234.9MB. Free memory was 151.3MB in the beginning and 148.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:44,231 INFO  L158              Benchmark]: Boogie Preprocessor took 62.29ms. Allocated memory is still 234.9MB. Free memory was 148.6MB in the beginning and 145.4MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:44,231 INFO  L158              Benchmark]: RCFGBuilder took 385.22ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 145.4MB in the beginning and 269.5MB in the end (delta: -124.2MB). Peak memory consumption was 41.4MB. Max. memory is 33.6GB.
[2025-05-07 17:28:44,232 INFO  L158              Benchmark]: TraceAbstraction took 931.88ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 269.1MB in the beginning and 102.2MB in the end (delta: 166.9MB). Peak memory consumption was 85.4MB. Max. memory is 33.6GB.
[2025-05-07 17:28:44,232 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.31ms. Allocated memory is still 234.9MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 39.36ms. Allocated memory is still 234.9MB. Free memory was 151.3MB in the beginning and 148.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 62.29ms. Allocated memory is still 234.9MB. Free memory was 148.6MB in the beginning and 145.4MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 385.22ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 145.4MB in the beginning and 269.5MB in the end (delta: -124.2MB). Peak memory consumption was 41.4MB. Max. memory is 33.6GB.
 * TraceAbstraction took 931.88ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 269.1MB in the beginning and 102.2MB in the end (delta: 166.9MB). Peak memory consumption was 85.4MB. 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 26 procedures, 101 locations, 146 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 1168 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 878 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 290 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 195 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 17:28:44,244 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
