./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/address_literal.sol_2_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:21,211 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:21,263 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138719fa-d098-43b9-beaf-686639e4e231/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:21,267 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:21,267 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:21,285 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:21,286 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:21,286 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:21,286 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:21,286 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:21,287 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:21,287 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:21,287 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:21,287 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:21,287 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:21,287 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:21,287 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:21,287 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:21,287 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:21,288 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:21,288 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:21,288 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:21,288 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:21,288 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:21,288 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:21,289 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:21,289 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:21,473 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:21,481 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:21,483 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:21,484 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:21,485 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:21,486 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138719fa-d098-43b9-beaf-686639e4e231/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/address_literal.sol_2_no_adts_000.smt2
[2025-05-07 17:26:21,487 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:21,489 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:21,827 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_138719fa-d098-43b9-beaf-686639e4e231/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/address_literal.sol_2_no_adts_000.smt2
[2025-05-07 17:26:21,830 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:21,831 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:21,832 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:21,832 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:21,832 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:21,834 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,881 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21 Unit
[2025-05-07 17:26:21,881 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:21,882 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:21,882 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:21,882 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:21,897 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,898 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,922 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,923 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,929 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,930 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,932 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,934 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,935 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,946 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:21,946 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:21,947 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:21,947 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:21,947 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (1/1) ...
[2025-05-07 17:26:21,949 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:21,958 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:21,966 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 17:26:21,969 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 17:26:21,977 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:21,977 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:21,977 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:21,977 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_12_0 given in one single declaration
[2025-05-07 17:26:21,977 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_12_0
[2025-05-07 17:26:21,977 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_12_0
[2025-05-07 17:26:21,977 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,978 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_g__91_92_0
[2025-05-07 17:26:21,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_g__91_92_0
[2025-05-07 17:26:21,978 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,978 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_function_g__91_92_0
[2025-05-07 17:26:21,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_function_g__91_92_0
[2025-05-07 17:26:21,978 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,978 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_g__91_92_0
[2025-05-07 17:26:21,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_g__91_92_0
[2025-05-07 17:26:21,978 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,978 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_function_g__91_92_0
[2025-05-07 17:26:21,978 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_function_g__91_92_0
[2025-05-07 17:26:21,978 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_g_90_92_0 given in one single declaration
[2025-05-07 17:26:21,978 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_g_90_92_0
[2025-05-07 17:26:21,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_g_90_92_0
[2025-05-07 17:26:21,979 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_g__91_92_0
[2025-05-07 17:26:21,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_g__91_92_0
[2025-05-07 17:26:21,979 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_g__91_92_0
[2025-05-07 17:26:21,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_g__91_92_0
[2025-05-07 17:26:21,979 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_return_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_return_function_g__91_92_0
[2025-05-07 17:26:21,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_return_function_g__91_92_0
[2025-05-07 17:26:21,979 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,979 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_g__91_92_0
[2025-05-07 17:26:21,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_g__91_92_0
[2025-05-07 17:26:21,980 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_function_g__91_92_0 given in one single declaration
[2025-05-07 17:26:21,980 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_function_g__91_92_0
[2025-05-07 17:26:21,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_function_g__91_92_0
[2025-05-07 17:26:21,980 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_92_0 given in one single declaration
[2025-05-07 17:26:21,980 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_92_0
[2025-05-07 17:26:21,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_92_0
[2025-05-07 17:26:21,980 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__28_92_0 given in one single declaration
[2025-05-07 17:26:21,980 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__28_92_0
[2025-05-07 17:26:21,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__28_92_0
[2025-05-07 17:26:21,980 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__28_92_0 given in one single declaration
[2025-05-07 17:26:21,980 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__28_92_0
[2025-05-07 17:26:21,980 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__28_92_0
[2025-05-07 17:26:21,980 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__28_92_0 given in one single declaration
[2025-05-07 17:26:21,980 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_return_function_f__28_92_0 given in one single declaration
[2025-05-07 17:26:21,981 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_return_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_return_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_f_27_92_0 given in one single declaration
[2025-05-07 17:26:21,981 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_f_27_92_0
[2025-05-07 17:26:21,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_f_27_92_0
[2025-05-07 17:26:21,981 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_function_f__28_92_0 given in one single declaration
[2025-05-07 17:26:21,981 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__28_92_0 given in one single declaration
[2025-05-07 17:26:21,981 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__28_92_0 given in one single declaration
[2025-05-07 17:26:21,981 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__28_92_0
[2025-05-07 17:26:21,981 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__28_92_0
[2025-05-07 17:26:21,982 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_92_0 given in one single declaration
[2025-05-07 17:26:21,982 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_92_0
[2025-05-07 17:26:21,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_92_0
[2025-05-07 17:26:21,982 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_24_C_92_0 given in one single declaration
[2025-05-07 17:26:21,982 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_24_C_92_0
[2025-05-07 17:26:21,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_24_C_92_0
[2025-05-07 17:26:21,982 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_21_C_92_0 given in one single declaration
[2025-05-07 17:26:21,982 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_21_C_92_0
[2025-05-07 17:26:21,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_21_C_92_0
[2025-05-07 17:26:21,982 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_23_C_92_0 given in one single declaration
[2025-05-07 17:26:21,982 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_23_C_92_0
[2025-05-07 17:26:21,982 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_23_C_92_0
[2025-05-07 17:26:21,982 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_22_C_92_0 given in one single declaration
[2025-05-07 17:26:21,983 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_22_C_92_0
[2025-05-07 17:26:21,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_22_C_92_0
[2025-05-07 17:26:21,983 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:21,983 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:21,983 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:22,142 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:22,144 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:22,375 INFO  L?                        ?]: Removed 264 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:22,375 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:22,384 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:22,384 INFO  L312             CfgBuilder]: Removed 15 assume(true) statements.
[2025-05-07 17:26:22,384 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:22 BoogieIcfgContainer
[2025-05-07 17:26:22,384 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:22,386 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:22,386 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:22,389 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:22,389 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:21" (1/3) ...
[2025-05-07 17:26:22,389 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a339bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:22, skipping insertion in model container
[2025-05-07 17:26:22,389 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:21" (2/3) ...
[2025-05-07 17:26:22,390 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a339bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:22, skipping insertion in model container
[2025-05-07 17:26:22,390 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:22" (3/3) ...
[2025-05-07 17:26:22,391 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:22,401 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:22,403 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 27 procedures, 104 locations, 160 edges, 27 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:22,433 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:22,441 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;@19ef125b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:22,441 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:22,444 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 104 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 49 states have internal predecessors, (49), 31 states have call successors, (37), 26 states have call predecessors, (37), 26 states have return successors, (37), 28 states have call predecessors, (37), 31 states have call successors, (37)
[2025-05-07 17:26:22,451 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:22,451 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:22,452 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:22,452 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:22,456 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:22,456 INFO  L85        PathProgramCache]: Analyzing trace with hash 1571806493, now seen corresponding path program 1 times
[2025-05-07 17:26:22,461 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:22,462 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627623051]
[2025-05-07 17:26:22,462 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:22,462 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:22,508 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:22,575 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:22,575 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:22,576 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:22,923 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 17:26:22,924 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:22,924 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627623051]
[2025-05-07 17:26:22,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627623051] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:22,925 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:22,928 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:26:22,929 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769595648]
[2025-05-07 17:26:22,930 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:22,934 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:26:22,934 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:22,954 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:26:22,954 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:22,960 INFO  L87              Difference]: Start difference. First operand  has 104 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 49 states have internal predecessors, (49), 31 states have call successors, (37), 26 states have call predecessors, (37), 26 states have return successors, (37), 28 states have call predecessors, (37), 31 states have call successors, (37) Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:26:23,060 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:23,061 INFO  L93              Difference]: Finished difference Result 98 states and 112 transitions.
[2025-05-07 17:26:23,064 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:26:23,066 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:26:23,066 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:23,072 INFO  L225             Difference]: With dead ends: 98
[2025-05-07 17:26:23,072 INFO  L226             Difference]: Without dead ends: 95
[2025-05-07 17:26:23,073 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:23,075 INFO  L437           NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:23,076 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 716 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:23,085 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2025-05-07 17:26:23,100 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95.
[2025-05-07 17:26:23,101 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 40 states have (on average 1.075) internal successors, (43), 43 states have internal predecessors, (43), 29 states have call successors, (32), 23 states have call predecessors, (32), 25 states have return successors, (34), 28 states have call predecessors, (34), 29 states have call successors, (34)
[2025-05-07 17:26:23,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions.
[2025-05-07 17:26:23,105 INFO  L79                 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 51
[2025-05-07 17:26:23,106 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:23,106 INFO  L485      AbstractCegarLoop]: Abstraction has 95 states and 109 transitions.
[2025-05-07 17:26:23,106 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:26:23,106 INFO  L278                IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions.
[2025-05-07 17:26:23,107 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:23,107 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:23,108 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:23,108 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:23,108 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:23,108 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:23,108 INFO  L85        PathProgramCache]: Analyzing trace with hash -866432775, now seen corresponding path program 1 times
[2025-05-07 17:26:23,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:23,109 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518946026]
[2025-05-07 17:26:23,109 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:23,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:23,137 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:23,140 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:23,140 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:23,141 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:23,200 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 17:26:23,200 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:23,200 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518946026]
[2025-05-07 17:26:23,200 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518946026] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:23,200 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:23,200 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:23,200 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005940522]
[2025-05-07 17:26:23,200 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:23,201 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:23,202 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:23,202 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:23,202 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:23,202 INFO  L87              Difference]: Start difference. First operand 95 states and 109 transitions. Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:23,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:23,215 INFO  L93              Difference]: Finished difference Result 99 states and 114 transitions.
[2025-05-07 17:26:23,216 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:23,216 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:26:23,216 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:23,218 INFO  L225             Difference]: With dead ends: 99
[2025-05-07 17:26:23,218 INFO  L226             Difference]: Without dead ends: 95
[2025-05-07 17:26:23,218 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 17:26:23,219 INFO  L437           NwaCegarLoop]: 103 mSDtfsCounter, 1 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 302 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 17:26:23,219 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 302 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:23,220 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2025-05-07 17:26:23,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93.
[2025-05-07 17:26:23,227 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 40 states have (on average 1.05) internal successors, (42), 42 states have internal predecessors, (42), 27 states have call successors, (30), 23 states have call predecessors, (30), 25 states have return successors, (32), 27 states have call predecessors, (32), 27 states have call successors, (32)
[2025-05-07 17:26:23,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 104 transitions.
[2025-05-07 17:26:23,228 INFO  L79                 Accepts]: Start accepts. Automaton has 93 states and 104 transitions. Word has length 51
[2025-05-07 17:26:23,228 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:23,228 INFO  L485      AbstractCegarLoop]: Abstraction has 93 states and 104 transitions.
[2025-05-07 17:26:23,229 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:23,229 INFO  L278                IsEmpty]: Start isEmpty. Operand 93 states and 104 transitions.
[2025-05-07 17:26:23,230 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:23,230 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:23,230 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:23,230 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:23,230 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:23,231 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:23,231 INFO  L85        PathProgramCache]: Analyzing trace with hash 638920957, now seen corresponding path program 1 times
[2025-05-07 17:26:23,231 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:23,231 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582996348]
[2025-05-07 17:26:23,231 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:23,231 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:23,253 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:23,273 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:23,273 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:23,273 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:23,353 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 17:26:23,353 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:23,353 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582996348]
[2025-05-07 17:26:23,353 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582996348] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:23,353 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:23,353 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:23,353 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577485272]
[2025-05-07 17:26:23,353 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:23,354 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:23,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:23,354 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:23,354 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:23,354 INFO  L87              Difference]: Start difference. First operand 93 states and 104 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:23,384 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:23,384 INFO  L93              Difference]: Finished difference Result 87 states and 98 transitions.
[2025-05-07 17:26:23,385 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:23,385 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:26:23,385 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:23,385 INFO  L225             Difference]: With dead ends: 87
[2025-05-07 17:26:23,385 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:23,385 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 17:26:23,386 INFO  L437           NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 442 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 17:26:23,386 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 442 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:23,386 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:23,386 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:23,386 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 17:26:23,386 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:23,387 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:26:23,387 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:23,387 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:23,387 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:26:23,387 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:23,387 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:23,389 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:23,389 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:23,391 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:26:23,393 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:23,395 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:23 BoogieIcfgContainer
[2025-05-07 17:26:23,396 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:23,396 INFO  L158              Benchmark]: Toolchain (without parser) took 1565.32ms. Allocated memory is still 234.9MB. Free memory was 141.5MB in the beginning and 109.8MB in the end (delta: 31.7MB). Peak memory consumption was 45.4MB. Max. memory is 33.6GB.
[2025-05-07 17:26:23,396 INFO  L158              Benchmark]: SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 174.2MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:23,397 INFO  L158              Benchmark]: ChcToBoogie took 50.03ms. Allocated memory is still 234.9MB. Free memory was 141.5MB in the beginning and 137.6MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:23,397 INFO  L158              Benchmark]: Boogie Preprocessor took 64.00ms. Allocated memory is still 234.9MB. Free memory was 137.6MB in the beginning and 134.0MB in the end (delta: 3.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:23,397 INFO  L158              Benchmark]: RCFGBuilder took 438.03ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 133.9MB in the beginning and 227.2MB in the end (delta: -93.3MB). Peak memory consumption was 26.4MB. Max. memory is 33.6GB.
[2025-05-07 17:26:23,397 INFO  L158              Benchmark]: TraceAbstraction took 1009.39ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 226.3MB in the beginning and 109.8MB in the end (delta: 116.6MB). Peak memory consumption was 35.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:23,398 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 174.2MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 50.03ms. Allocated memory is still 234.9MB. Free memory was 141.5MB in the beginning and 137.6MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 64.00ms. Allocated memory is still 234.9MB. Free memory was 137.6MB in the beginning and 134.0MB in the end (delta: 3.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 438.03ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 133.9MB in the beginning and 227.2MB in the end (delta: -93.3MB). Peak memory consumption was 26.4MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1009.39ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 226.3MB in the beginning and 109.8MB in the end (delta: 116.6MB). Peak memory consumption was 35.8MB. 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 27 procedures, 104 locations, 160 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 1460 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1162 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 298 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 211 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 17:26:23,409 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
