./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_identity_1.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:30,422 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:30,467 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1eeb86-3eb8-4a67-8841-04a8839368a5/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:30,471 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:30,471 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:30,489 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:30,490 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:30,490 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:30,490 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:30,490 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:30,491 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:30,491 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:30,491 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:30,491 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:30,491 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:30,491 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:30,491 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:30,491 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:30,491 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:30,492 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:30,492 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:30,492 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:30,492 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:30,492 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:30,492 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:30,493 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:30,493 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:30,697 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:30,706 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:30,708 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:30,709 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:30,709 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:30,710 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1eeb86-3eb8-4a67-8841-04a8839368a5/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_identity_1.sol_0_no_adts_000.smt2
[2025-05-07 17:26:30,711 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:30,713 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:30,949 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1eeb86-3eb8-4a67-8841-04a8839368a5/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_identity_1.sol_0_no_adts_000.smt2
[2025-05-07 17:26:30,952 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:30,953 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:30,954 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:30,954 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:30,954 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:30,956 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,992 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30 Unit
[2025-05-07 17:26:30,992 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:30,993 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:30,993 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:30,993 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:31,004 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,004 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,031 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,031 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,037 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,037 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,039 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,041 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,042 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,053 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:31,054 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:31,054 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:31,054 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:31,055 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:31,056 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:31,068 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:31,078 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 17:26:31,081 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 17:26:31,089 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:31,089 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:31,089 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:31,089 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:26:31,089 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:26:31,089 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:26:31,089 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_g__29_30_0 given in one single declaration
[2025-05-07 17:26:31,090 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_g__29_30_0 given in one single declaration
[2025-05-07 17:26:31,090 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_g__29_30_0 given in one single declaration
[2025-05-07 17:26:31,090 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_return_function_g__29_30_0 given in one single declaration
[2025-05-07 17:26:31,090 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_return_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_return_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_g__29_30_0 given in one single declaration
[2025-05-07 17:26:31,090 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_g__29_30_0
[2025-05-07 17:26:31,090 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_15_function_h__10_30_0 given in one single declaration
[2025-05-07 17:26:31,090 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_15_function_h__10_30_0
[2025-05-07 17:26:31,090 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_15_function_h__10_30_0
[2025-05-07 17:26:31,090 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_h__10_30_0 given in one single declaration
[2025-05-07 17:26:31,091 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_h__10_30_0
[2025-05-07 17:26:31,091 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_h__10_30_0
[2025-05-07 17:26:31,091 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_return_function_h__10_30_0 given in one single declaration
[2025-05-07 17:26:31,091 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_return_function_h__10_30_0
[2025-05-07 17:26:31,091 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_return_function_h__10_30_0
[2025-05-07 17:26:31,091 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_h_9_30_0 given in one single declaration
[2025-05-07 17:26:31,091 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_h_9_30_0
[2025-05-07 17:26:31,091 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_h_9_30_0
[2025-05-07 17:26:31,091 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_function_h__10_30_0 given in one single declaration
[2025-05-07 17:26:31,091 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_function_h__10_30_0
[2025-05-07 17:26:31,091 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_function_h__10_30_0
[2025-05-07 17:26:31,091 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_g_28_30_0 given in one single declaration
[2025-05-07 17:26:31,091 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_g_28_30_0
[2025-05-07 17:26:31,091 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_g_28_30_0
[2025-05-07 17:26:31,091 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_g__29_30_0 given in one single declaration
[2025-05-07 17:26:31,091 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_g__29_30_0
[2025-05-07 17:26:31,091 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_g__29_30_0
[2025-05-07 17:26:31,091 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_30_0 given in one single declaration
[2025-05-07 17:26:31,091 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_30_0
[2025-05-07 17:26:31,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_30_0
[2025-05-07 17:26:31,092 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_30_0 given in one single declaration
[2025-05-07 17:26:31,092 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_30_0
[2025-05-07 17:26:31,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_30_0
[2025-05-07 17:26:31,092 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_18_C_30_0 given in one single declaration
[2025-05-07 17:26:31,092 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_18_C_30_0
[2025-05-07 17:26:31,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_18_C_30_0
[2025-05-07 17:26:31,092 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_20_C_30_0 given in one single declaration
[2025-05-07 17:26:31,092 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_20_C_30_0
[2025-05-07 17:26:31,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_20_C_30_0
[2025-05-07 17:26:31,092 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_19_C_30_0 given in one single declaration
[2025-05-07 17:26:31,092 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_19_C_30_0
[2025-05-07 17:26:31,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_19_C_30_0
[2025-05-07 17:26:31,092 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_21_C_30_0 given in one single declaration
[2025-05-07 17:26:31,092 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_21_C_30_0
[2025-05-07 17:26:31,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_21_C_30_0
[2025-05-07 17:26:31,092 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_h__10_30_0 given in one single declaration
[2025-05-07 17:26:31,092 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_h__10_30_0
[2025-05-07 17:26:31,092 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_h__10_30_0
[2025-05-07 17:26:31,093 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_h__10_30_0 given in one single declaration
[2025-05-07 17:26:31,093 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_h__10_30_0
[2025-05-07 17:26:31,093 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_h__10_30_0
[2025-05-07 17:26:31,093 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:31,093 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:31,093 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:31,220 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:31,221 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:31,415 INFO  L?                        ?]: Removed 171 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:31,415 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:31,427 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:31,427 INFO  L312             CfgBuilder]: Removed 11 assume(true) statements.
[2025-05-07 17:26:31,427 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:31 BoogieIcfgContainer
[2025-05-07 17:26:31,427 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:31,429 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:31,430 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:31,433 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:31,433 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:30" (1/3) ...
[2025-05-07 17:26:31,434 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fd27bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:31, skipping insertion in model container
[2025-05-07 17:26:31,434 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (2/3) ...
[2025-05-07 17:26:31,434 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fd27bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:31, skipping insertion in model container
[2025-05-07 17:26:31,434 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:31" (3/3) ...
[2025-05-07 17:26:31,435 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:31,446 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:31,448 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 23 procedures, 91 locations, 137 edges, 23 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:31,475 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:31,483 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;@3ae4ae86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:31,483 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:31,486 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 91 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 41 states have internal predecessors, (41), 31 states have call successors, (32), 22 states have call predecessors, (32), 22 states have return successors, (32), 27 states have call predecessors, (32), 31 states have call successors, (32)
[2025-05-07 17:26:31,494 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:26:31,494 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:31,494 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:31,495 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:31,498 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:31,499 INFO  L85        PathProgramCache]: Analyzing trace with hash 1813479366, now seen corresponding path program 1 times
[2025-05-07 17:26:31,504 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:31,504 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323354189]
[2025-05-07 17:26:31,504 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:31,504 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:31,551 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:26:31,627 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:26:31,628 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:31,628 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:31,849 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 17:26:31,849 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:31,849 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323354189]
[2025-05-07 17:26:31,850 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323354189] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:31,850 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:31,853 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:26:31,854 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044308236]
[2025-05-07 17:26:31,855 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:31,859 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:26:31,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:31,895 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:26:31,896 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:26:31,898 INFO  L87              Difference]: Start difference. First operand  has 91 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 41 states have internal predecessors, (41), 31 states have call successors, (32), 22 states have call predecessors, (32), 22 states have return successors, (32), 27 states have call predecessors, (32), 31 states have call successors, (32) Second operand  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:26:32,011 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:32,011 INFO  L93              Difference]: Finished difference Result 89 states and 102 transitions.
[2025-05-07 17:26:32,012 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:26:32,013 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18) Word has length 65
[2025-05-07 17:26:32,014 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:32,019 INFO  L225             Difference]: With dead ends: 89
[2025-05-07 17:26:32,019 INFO  L226             Difference]: Without dead ends: 87
[2025-05-07 17:26:32,021 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:26:32,023 INFO  L437           NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:32,023 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 560 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:32,034 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2025-05-07 17:26:32,051 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87.
[2025-05-07 17:26:32,052 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 38 states have internal predecessors, (38), 29 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 26 states have call predecessors, (30), 29 states have call successors, (30)
[2025-05-07 17:26:32,055 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions.
[2025-05-07 17:26:32,056 INFO  L79                 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 65
[2025-05-07 17:26:32,057 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:32,057 INFO  L485      AbstractCegarLoop]: Abstraction has 87 states and 98 transitions.
[2025-05-07 17:26:32,057 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:26:32,058 INFO  L278                IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions.
[2025-05-07 17:26:32,059 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:26:32,059 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:32,059 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:32,060 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:32,060 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:32,060 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:32,060 INFO  L85        PathProgramCache]: Analyzing trace with hash 427762908, now seen corresponding path program 1 times
[2025-05-07 17:26:32,060 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:32,060 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131572764]
[2025-05-07 17:26:32,060 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:32,060 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:32,092 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:26:32,124 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:26:32,124 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:32,124 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:32,296 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 17:26:32,297 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:32,297 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131572764]
[2025-05-07 17:26:32,297 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131572764] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:32,297 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:32,297 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:32,297 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229370992]
[2025-05-07 17:26:32,297 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:32,298 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:32,298 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:32,299 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:32,299 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:32,299 INFO  L87              Difference]: Start difference. First operand 87 states and 98 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:26:32,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:32,339 INFO  L93              Difference]: Finished difference Result 92 states and 104 transitions.
[2025-05-07 17:26:32,339 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:32,340 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 68
[2025-05-07 17:26:32,340 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:32,341 INFO  L225             Difference]: With dead ends: 92
[2025-05-07 17:26:32,341 INFO  L226             Difference]: Without dead ends: 92
[2025-05-07 17:26:32,342 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 17:26:32,342 INFO  L437           NwaCegarLoop]: 99 mSDtfsCounter, 1 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 482 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 17:26:32,343 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 482 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:32,344 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2025-05-07 17:26:32,350 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2025-05-07 17:26:32,350 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 40 states have internal predecessors, (40), 30 states have call successors, (31), 22 states have call predecessors, (31), 24 states have return successors, (33), 29 states have call predecessors, (33), 30 states have call successors, (33)
[2025-05-07 17:26:32,352 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions.
[2025-05-07 17:26:32,352 INFO  L79                 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 68
[2025-05-07 17:26:32,353 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:32,353 INFO  L485      AbstractCegarLoop]: Abstraction has 92 states and 104 transitions.
[2025-05-07 17:26:32,353 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:26:32,353 INFO  L278                IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions.
[2025-05-07 17:26:32,355 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:26:32,355 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:32,355 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:32,355 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:32,355 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:32,356 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:32,356 INFO  L85        PathProgramCache]: Analyzing trace with hash -1295143524, now seen corresponding path program 1 times
[2025-05-07 17:26:32,356 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:32,356 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119443673]
[2025-05-07 17:26:32,356 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:32,356 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:32,387 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:26:32,407 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:26:32,408 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:32,408 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:32,662 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 17:26:32,662 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:32,662 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119443673]
[2025-05-07 17:26:32,662 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119443673] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:32,662 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:32,662 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:26:32,662 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353112989]
[2025-05-07 17:26:32,662 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:32,663 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:26:32,663 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:32,664 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:26:32,664 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:32,664 INFO  L87              Difference]: Start difference. First operand 92 states and 104 transitions. Second operand  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:26:32,743 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:32,743 INFO  L93              Difference]: Finished difference Result 79 states and 89 transitions.
[2025-05-07 17:26:32,744 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:26:32,744 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:26:32,744 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:32,744 INFO  L225             Difference]: With dead ends: 79
[2025-05-07 17:26:32,744 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:32,745 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 17:26:32,745 INFO  L437           NwaCegarLoop]: 84 mSDtfsCounter, 1 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 570 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 17:26:32,745 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 570 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:32,746 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:32,746 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:32,746 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 17:26:32,746 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:32,746 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68
[2025-05-07 17:26:32,746 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:32,746 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:32,746 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:26:32,746 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:32,747 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:32,748 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:32,749 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:32,751 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:26:32,753 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:32,755 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:32 BoogieIcfgContainer
[2025-05-07 17:26:32,755 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:32,756 INFO  L158              Benchmark]: Toolchain (without parser) took 1802.76ms. Allocated memory is still 234.9MB. Free memory was 152.6MB in the beginning and 133.1MB in the end (delta: 19.5MB). Peak memory consumption was 28.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:32,756 INFO  L158              Benchmark]: SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 172.3MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:32,756 INFO  L158              Benchmark]: ChcToBoogie took 38.93ms. Allocated memory is still 234.9MB. Free memory was 152.6MB in the beginning and 150.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:32,756 INFO  L158              Benchmark]: Boogie Preprocessor took 60.33ms. Allocated memory is still 234.9MB. Free memory was 150.1MB in the beginning and 147.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:32,756 INFO  L158              Benchmark]: RCFGBuilder took 373.55ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 146.9MB in the beginning and 257.3MB in the end (delta: -110.3MB). Peak memory consumption was 43.0MB. Max. memory is 33.6GB.
[2025-05-07 17:26:32,757 INFO  L158              Benchmark]: TraceAbstraction took 1325.66ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 256.4MB in the beginning and 133.1MB in the end (delta: 123.3MB). Peak memory consumption was 52.9MB. Max. memory is 33.6GB.
[2025-05-07 17:26:32,757 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 172.3MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 38.93ms. Allocated memory is still 234.9MB. Free memory was 152.6MB in the beginning and 150.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 60.33ms. Allocated memory is still 234.9MB. Free memory was 150.1MB in the beginning and 147.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 373.55ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 146.9MB in the beginning and 257.3MB in the end (delta: -110.3MB). Peak memory consumption was 43.0MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1325.66ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 256.4MB in the beginning and 133.1MB in the end (delta: 123.3MB). Peak memory consumption was 52.9MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 23 procedures, 91 locations, 137 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 1612 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1333 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 279 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=2, InterpolantAutomatonStates: 21, 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, 0.6s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 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 17:26:32,768 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
