./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_13_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:29,452 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:29,490 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86012d2-16eb-423d-9ec5-bd76679bbd73/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:29,492 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:29,493 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:29,506 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:29,506 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:29,506 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:29,506 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:29,506 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:29,507 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:29,507 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:29,507 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:29,507 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:29,507 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:29,508 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:29,508 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:29,701 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:29,709 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:29,711 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:29,712 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:29,712 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:29,713 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86012d2-16eb-423d-9ec5-bd76679bbd73/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_13_no_adts_000.smt2
[2025-05-07 17:27:29,715 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:29,718 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:30,144 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86012d2-16eb-423d-9ec5-bd76679bbd73/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_13_no_adts_000.smt2
[2025-05-07 17:27:30,146 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:30,147 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:30,147 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:30,148 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:30,148 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:30,149 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,199 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30 Unit
[2025-05-07 17:27:30,199 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:30,200 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:30,200 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:30,200 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:30,211 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,211 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,236 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,236 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,247 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,250 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,251 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,255 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,258 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,275 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:30,276 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:30,276 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:30,276 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:30,277 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (1/1) ...
[2025-05-07 17:27:30,279 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:30,287 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:30,295 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:27:30,297 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:27:30,304 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:30,305 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:30,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:30,305 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_51_0 given in one single declaration
[2025-05-07 17:27:30,305 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_51_0
[2025-05-07 17:27:30,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_51_0
[2025-05-07 17:27:30,305 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_203_0 given in one single declaration
[2025-05-07 17:27:30,305 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_203_0
[2025-05-07 17:27:30,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_203_0
[2025-05-07 17:27:30,305 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_31_C_203_0 given in one single declaration
[2025-05-07 17:27:30,305 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_31_C_203_0
[2025-05-07 17:27:30,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_31_C_203_0
[2025-05-07 17:27:30,305 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,305 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_constructor_202_203_0
[2025-05-07 17:27:30,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_constructor_202_203_0
[2025-05-07 17:27:30,305 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,305 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_constructor_202_203_0
[2025-05-07 17:27:30,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_constructor_202_203_0
[2025-05-07 17:27:30,305 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9__201_203_0 given in one single declaration
[2025-05-07 17:27:30,306 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9__201_203_0
[2025-05-07 17:27:30,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9__201_203_0
[2025-05-07 17:27:30,306 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,306 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,306 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,306 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_return_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,306 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_27_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,306 INFO  L130     BoogieDeclarations]: Found specification of procedure block_27_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_27_constructor_202_203_0
[2025-05-07 17:27:30,306 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_21_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,306 INFO  L130     BoogieDeclarations]: Found specification of procedure block_21_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_21_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,307 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,307 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_29_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,307 INFO  L130     BoogieDeclarations]: Found specification of procedure block_29_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_29_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,307 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_30_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,307 INFO  L130     BoogieDeclarations]: Found specification of procedure block_30_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_30_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,307 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_constructor_202_203_0
[2025-05-07 17:27:30,307 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,307 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,308 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,308 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_26_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,308 INFO  L130     BoogieDeclarations]: Found specification of procedure block_26_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_26_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,308 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_28_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,308 INFO  L130     BoogieDeclarations]: Found specification of procedure block_28_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_28_constructor_202_203_0
[2025-05-07 17:27:30,308 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_25_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,308 INFO  L130     BoogieDeclarations]: Found specification of procedure block_25_constructor_202_203_0
[2025-05-07 17:27:30,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_25_constructor_202_203_0
[2025-05-07 17:27:30,309 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,309 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_constructor_202_203_0
[2025-05-07 17:27:30,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_constructor_202_203_0
[2025-05-07 17:27:30,309 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:30,309 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_constructor_202_203_0
[2025-05-07 17:27:30,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_constructor_202_203_0
[2025-05-07 17:27:30,309 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_33_C_203_0 given in one single declaration
[2025-05-07 17:27:30,309 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:27:30,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:27:30,309 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_32_C_203_0 given in one single declaration
[2025-05-07 17:27:30,309 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:27:30,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:27:30,309 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_34_C_203_0 given in one single declaration
[2025-05-07 17:27:30,309 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:27:30,310 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:27:30,310 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:30,310 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:30,310 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:30,561 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:30,563 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:31,055 INFO  L?                        ?]: Removed 184 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:31,056 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:31,065 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:31,065 INFO  L312             CfgBuilder]: Removed 24 assume(true) statements.
[2025-05-07 17:27:31,066 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:31 BoogieIcfgContainer
[2025-05-07 17:27:31,066 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:31,067 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:31,068 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:31,071 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:31,071 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:30" (1/3) ...
[2025-05-07 17:27:31,071 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff237aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:31, skipping insertion in model container
[2025-05-07 17:27:31,071 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:30" (2/3) ...
[2025-05-07 17:27:31,072 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff237aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:31, skipping insertion in model container
[2025-05-07 17:27:31,072 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:31" (3/3) ...
[2025-05-07 17:27:31,073 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:31,084 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:31,086 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 32 procedures, 128 locations, 228 edges, 32 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:31,118 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:31,127 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;@69555dc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:31,127 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:31,131 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 128 states, 60 states have (on average 1.05) internal successors, (63), 63 states have internal predecessors, (63), 35 states have call successors, (55), 31 states have call predecessors, (55), 31 states have return successors, (55), 33 states have call predecessors, (55), 35 states have call successors, (55)
[2025-05-07 17:27:31,139 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:31,139 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:31,140 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]
[2025-05-07 17:27:31,140 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:31,144 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:31,144 INFO  L85        PathProgramCache]: Analyzing trace with hash 33663184, now seen corresponding path program 1 times
[2025-05-07 17:27:31,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:31,150 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451422603]
[2025-05-07 17:27:31,150 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:31,151 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:31,189 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:31,209 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:31,210 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:31,210 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:31,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:31,407 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:31,408 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451422603]
[2025-05-07 17:27:31,408 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451422603] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:31,408 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:31,410 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:31,412 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547548665]
[2025-05-07 17:27:31,412 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:31,415 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:31,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:31,444 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:31,444 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:31,446 INFO  L87              Difference]: Start difference. First operand  has 128 states, 60 states have (on average 1.05) internal successors, (63), 63 states have internal predecessors, (63), 35 states have call successors, (55), 31 states have call predecessors, (55), 31 states have return successors, (55), 33 states have call predecessors, (55), 35 states have call successors, (55) Second operand  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:27:31,480 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:31,480 INFO  L93              Difference]: Finished difference Result 68 states and 72 transitions.
[2025-05-07 17:27:31,481 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:31,483 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 41
[2025-05-07 17:27:31,483 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:31,488 INFO  L225             Difference]: With dead ends: 68
[2025-05-07 17:27:31,488 INFO  L226             Difference]: Without dead ends: 44
[2025-05-07 17:27:31,489 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:31,492 INFO  L437           NwaCegarLoop]: 71 mSDtfsCounter, 1 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:31,493 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 205 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:31,506 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2025-05-07 17:27:31,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2025-05-07 17:27:31,525 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 20 states have internal predecessors, (20), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13)
[2025-05-07 17:27:31,528 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions.
[2025-05-07 17:27:31,529 INFO  L79                 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 41
[2025-05-07 17:27:31,529 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:31,529 INFO  L485      AbstractCegarLoop]: Abstraction has 44 states and 46 transitions.
[2025-05-07 17:27:31,530 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:27:31,530 INFO  L278                IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions.
[2025-05-07 17:27:31,531 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:31,531 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:31,531 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]
[2025-05-07 17:27:31,532 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:31,532 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:31,532 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:31,532 INFO  L85        PathProgramCache]: Analyzing trace with hash -1728428336, now seen corresponding path program 1 times
[2025-05-07 17:27:31,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:31,533 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274193173]
[2025-05-07 17:27:31,533 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:31,533 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:31,557 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:31,568 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:31,568 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:31,568 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:31,650 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:31,650 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:31,650 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274193173]
[2025-05-07 17:27:31,650 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274193173] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:31,650 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:31,650 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:31,650 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402191977]
[2025-05-07 17:27:31,650 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:31,651 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:31,651 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:31,651 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:31,652 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:31,652 INFO  L87              Difference]: Start difference. First operand 44 states and 46 transitions. Second operand  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:27:31,666 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:31,666 INFO  L93              Difference]: Finished difference Result 46 states and 47 transitions.
[2025-05-07 17:27:31,667 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:31,667 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 41
[2025-05-07 17:27:31,667 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:31,668 INFO  L225             Difference]: With dead ends: 46
[2025-05-07 17:27:31,668 INFO  L226             Difference]: Without dead ends: 42
[2025-05-07 17:27:31,668 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:31,669 INFO  L437           NwaCegarLoop]: 46 mSDtfsCounter, 1 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:31,669 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 127 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:31,669 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2025-05-07 17:27:31,671 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2025-05-07 17:27:31,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2025-05-07 17:27:31,672 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions.
[2025-05-07 17:27:31,672 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 41
[2025-05-07 17:27:31,672 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:31,672 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 41 transitions.
[2025-05-07 17:27:31,672 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:27:31,672 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions.
[2025-05-07 17:27:31,673 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:31,673 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:31,673 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]
[2025-05-07 17:27:31,673 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:31,673 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:31,673 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:31,673 INFO  L85        PathProgramCache]: Analyzing trace with hash -649954484, now seen corresponding path program 1 times
[2025-05-07 17:27:31,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:31,673 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899050949]
[2025-05-07 17:27:31,673 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:31,673 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:31,691 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:31,718 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:31,718 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:31,718 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:32,050 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:32,050 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:32,050 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899050949]
[2025-05-07 17:27:32,050 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899050949] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:32,050 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:32,050 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:27:32,050 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724532561]
[2025-05-07 17:27:32,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:32,051 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:27:32,051 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:32,051 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:27:32,052 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:32,052 INFO  L87              Difference]: Start difference. First operand 42 states and 41 transitions. Second operand  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11)
[2025-05-07 17:27:32,085 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:32,085 INFO  L93              Difference]: Finished difference Result 32 states and 31 transitions.
[2025-05-07 17:27:32,086 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:27:32,086 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 41
[2025-05-07 17:27:32,086 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:32,086 INFO  L225             Difference]: With dead ends: 32
[2025-05-07 17:27:32,086 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:32,087 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:32,087 INFO  L437           NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:32,087 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:32,088 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:32,088 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:32,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:27:32,088 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:32,088 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41
[2025-05-07 17:27:32,088 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:32,088 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:32,088 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11)
[2025-05-07 17:27:32,088 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:32,088 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:32,090 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:32,090 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:32,093 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:27:32,094 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:32,097 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:32 BoogieIcfgContainer
[2025-05-07 17:27:32,097 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:32,097 INFO  L158              Benchmark]: Toolchain (without parser) took 1950.38ms. Allocated memory is still 234.9MB. Free memory was 162.4MB in the beginning and 144.6MB in the end (delta: 17.8MB). Peak memory consumption was 13.9MB. Max. memory is 33.6GB.
[2025-05-07 17:27:32,097 INFO  L158              Benchmark]: SmtParser took 0.28ms. Allocated memory is still 234.9MB. Free memory is still 171.6MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:32,098 INFO  L158              Benchmark]: ChcToBoogie took 51.75ms. Allocated memory is still 234.9MB. Free memory was 162.4MB in the beginning and 150.8MB in the end (delta: 11.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:32,098 INFO  L158              Benchmark]: Boogie Preprocessor took 76.04ms. Allocated memory is still 234.9MB. Free memory was 150.8MB in the beginning and 145.7MB in the end (delta: 5.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:32,098 INFO  L158              Benchmark]: RCFGBuilder took 789.69ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 145.7MB in the beginning and 184.2MB in the end (delta: -38.6MB). Peak memory consumption was 41.1MB. Max. memory is 33.6GB.
[2025-05-07 17:27:32,098 INFO  L158              Benchmark]: TraceAbstraction took 1029.33ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 183.3MB in the beginning and 144.6MB in the end (delta: 38.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:32,099 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.28ms. Allocated memory is still 234.9MB. Free memory is still 171.6MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 51.75ms. Allocated memory is still 234.9MB. Free memory was 162.4MB in the beginning and 150.8MB in the end (delta: 11.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 76.04ms. Allocated memory is still 234.9MB. Free memory was 150.8MB in the beginning and 145.7MB in the end (delta: 5.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 789.69ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 145.7MB in the beginning and 184.2MB in the end (delta: -38.6MB). Peak memory consumption was 41.1MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1029.33ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 183.3MB in the beginning and 144.6MB in the end (delta: 38.7MB). There was no memory consumed. 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 32 procedures, 128 locations, 228 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 491 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 345 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 146 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 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 17:27:32,109 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
