./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_12_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:23,661 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:23,700 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e15abf-bac8-465f-aa04-e80369840c7e/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:23,704 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:23,704 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:23,723 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:23,724 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:23,724 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:23,724 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:23,724 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:23,725 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:23,725 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:23,725 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:23,725 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:23,725 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:23,726 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:23,726 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:23,726 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:23,726 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:23,726 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:23,726 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:23,726 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:23,726 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:23,726 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:23,726 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:23,727 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:23,727 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:23,915 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:23,921 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:23,923 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:23,924 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:23,924 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:23,925 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e15abf-bac8-465f-aa04-e80369840c7e/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_12_no_adts_000.smt2
[2025-05-07 17:27:23,926 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:23,928 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:24,421 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e15abf-bac8-465f-aa04-e80369840c7e/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_12_no_adts_000.smt2
[2025-05-07 17:27:24,423 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:24,424 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:24,424 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:24,424 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:24,425 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:24,426 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,482 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24 Unit
[2025-05-07 17:27:24,482 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:24,482 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:24,483 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:24,483 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:24,493 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,493 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,519 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,520 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,531 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,534 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,536 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,541 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,544 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,561 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:24,562 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:24,562 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:24,562 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:24,563 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (1/1) ...
[2025-05-07 17:27:24,565 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:24,574 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:24,584 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 17:27:24,586 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 17:27:24,595 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:24,596 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:24,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:24,596 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_59_0 given in one single declaration
[2025-05-07 17:27:24,596 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_59_0
[2025-05-07 17:27:24,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_59_0
[2025-05-07 17:27:24,596 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_203_0 given in one single declaration
[2025-05-07 17:27:24,596 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_203_0
[2025-05-07 17:27:24,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_203_0
[2025-05-07 17:27:24,596 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_31_C_203_0 given in one single declaration
[2025-05-07 17:27:24,596 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_31_C_203_0
[2025-05-07 17:27:24,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_31_C_203_0
[2025-05-07 17:27:24,597 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,597 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_constructor_202_203_0
[2025-05-07 17:27:24,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_constructor_202_203_0
[2025-05-07 17:27:24,597 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,597 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_constructor_202_203_0
[2025-05-07 17:27:24,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_constructor_202_203_0
[2025-05-07 17:27:24,597 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9__201_203_0 given in one single declaration
[2025-05-07 17:27:24,597 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9__201_203_0
[2025-05-07 17:27:24,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9__201_203_0
[2025-05-07 17:27:24,597 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,597 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_constructor_202_203_0
[2025-05-07 17:27:24,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,598 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,598 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_return_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,598 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_27_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,598 INFO  L130     BoogieDeclarations]: Found specification of procedure block_27_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_27_constructor_202_203_0
[2025-05-07 17:27:24,598 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_21_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,599 INFO  L130     BoogieDeclarations]: Found specification of procedure block_21_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_21_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,599 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,599 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_29_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,599 INFO  L130     BoogieDeclarations]: Found specification of procedure block_29_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_29_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,599 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_constructor_202_203_0
[2025-05-07 17:27:24,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_30_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,600 INFO  L130     BoogieDeclarations]: Found specification of procedure block_30_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_30_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,600 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,600 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,600 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_constructor_202_203_0
[2025-05-07 17:27:24,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_constructor_202_203_0
[2025-05-07 17:27:24,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_constructor_202_203_0
[2025-05-07 17:27:24,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_26_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_26_constructor_202_203_0
[2025-05-07 17:27:24,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_26_constructor_202_203_0
[2025-05-07 17:27:24,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_constructor_202_203_0
[2025-05-07 17:27:24,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_constructor_202_203_0
[2025-05-07 17:27:24,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_28_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_28_constructor_202_203_0
[2025-05-07 17:27:24,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_28_constructor_202_203_0
[2025-05-07 17:27:24,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_25_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_25_constructor_202_203_0
[2025-05-07 17:27:24,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_25_constructor_202_203_0
[2025-05-07 17:27:24,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_constructor_202_203_0
[2025-05-07 17:27:24,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_constructor_202_203_0
[2025-05-07 17:27:24,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:24,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_constructor_202_203_0
[2025-05-07 17:27:24,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_constructor_202_203_0
[2025-05-07 17:27:24,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_33_C_203_0 given in one single declaration
[2025-05-07 17:27:24,602 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:27:24,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:27:24,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_32_C_203_0 given in one single declaration
[2025-05-07 17:27:24,602 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:27:24,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:27:24,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_34_C_203_0 given in one single declaration
[2025-05-07 17:27:24,603 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:27:24,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:27:24,603 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:24,603 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:24,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:24,863 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:24,864 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:25,394 INFO  L?                        ?]: Removed 184 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:25,394 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:25,403 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:25,403 INFO  L312             CfgBuilder]: Removed 24 assume(true) statements.
[2025-05-07 17:27:25,403 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:25 BoogieIcfgContainer
[2025-05-07 17:27:25,403 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:25,405 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:25,405 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:25,407 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:25,407 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:24" (1/3) ...
[2025-05-07 17:27:25,408 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64dfa06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:25, skipping insertion in model container
[2025-05-07 17:27:25,408 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:24" (2/3) ...
[2025-05-07 17:27:25,408 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64dfa06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:25, skipping insertion in model container
[2025-05-07 17:27:25,408 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:25" (3/3) ...
[2025-05-07 17:27:25,409 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:25,419 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:25,421 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 17:27:25,451 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:25,459 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;@7c1121bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:25,460 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:25,463 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 17:27:25,470 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:25,470 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:25,470 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 17:27:25,471 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:25,474 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:25,475 INFO  L85        PathProgramCache]: Analyzing trace with hash -731409162, now seen corresponding path program 1 times
[2025-05-07 17:27:25,480 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:25,480 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091780646]
[2025-05-07 17:27:25,480 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:25,481 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:25,511 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:25,529 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:25,530 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:25,530 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:25,667 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 17:27:25,668 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:25,668 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091780646]
[2025-05-07 17:27:25,668 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091780646] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:25,668 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:25,670 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:25,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912369950]
[2025-05-07 17:27:25,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:25,675 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:25,675 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:25,696 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:25,696 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:25,698 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 17:27:25,737 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:25,737 INFO  L93              Difference]: Finished difference Result 68 states and 72 transitions.
[2025-05-07 17:27:25,738 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:25,739 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 17:27:25,740 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:25,750 INFO  L225             Difference]: With dead ends: 68
[2025-05-07 17:27:25,750 INFO  L226             Difference]: Without dead ends: 44
[2025-05-07 17:27:25,752 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 17:27:25,754 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 17:27:25,755 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 17:27:25,765 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2025-05-07 17:27:25,782 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2025-05-07 17:27:25,783 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 17:27:25,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions.
[2025-05-07 17:27:25,787 INFO  L79                 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 41
[2025-05-07 17:27:25,787 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:25,787 INFO  L485      AbstractCegarLoop]: Abstraction has 44 states and 46 transitions.
[2025-05-07 17:27:25,787 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 17:27:25,787 INFO  L278                IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions.
[2025-05-07 17:27:25,788 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:25,788 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:25,789 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 17:27:25,789 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:25,789 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:25,790 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:25,790 INFO  L85        PathProgramCache]: Analyzing trace with hash -1731494806, now seen corresponding path program 1 times
[2025-05-07 17:27:25,790 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:25,790 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292512730]
[2025-05-07 17:27:25,790 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:25,790 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:25,812 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:25,854 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:25,854 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:25,854 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:26,271 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 17:27:26,271 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:26,271 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292512730]
[2025-05-07 17:27:26,271 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292512730] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:26,271 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:26,271 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:27:26,271 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553841694]
[2025-05-07 17:27:26,272 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:26,272 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:27:26,272 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:26,273 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:27:26,273 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:26,273 INFO  L87              Difference]: Start difference. First operand 44 states and 46 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 17:27:26,319 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:26,319 INFO  L93              Difference]: Finished difference Result 44 states and 45 transitions.
[2025-05-07 17:27:26,320 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:27:26,320 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 17:27:26,320 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:26,321 INFO  L225             Difference]: With dead ends: 44
[2025-05-07 17:27:26,321 INFO  L226             Difference]: Without dead ends: 42
[2025-05-07 17:27:26,321 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 17:27:26,322 INFO  L437           NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:26,322 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:26,323 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2025-05-07 17:27:26,326 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2025-05-07 17:27:26,326 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 17:27:26,326 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions.
[2025-05-07 17:27:26,327 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 41
[2025-05-07 17:27:26,327 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:26,327 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 41 transitions.
[2025-05-07 17:27:26,327 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 17:27:26,327 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions.
[2025-05-07 17:27:26,328 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:26,328 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:26,328 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 17:27:26,328 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:26,328 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:26,329 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:26,329 INFO  L85        PathProgramCache]: Analyzing trace with hash 1484998638, now seen corresponding path program 1 times
[2025-05-07 17:27:26,329 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:26,329 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318882903]
[2025-05-07 17:27:26,329 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:26,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:26,346 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:26,351 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:26,352 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:26,352 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:26,396 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 17:27:26,396 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:26,396 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318882903]
[2025-05-07 17:27:26,396 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318882903] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:26,396 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:26,396 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:26,396 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388566098]
[2025-05-07 17:27:26,396 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:26,397 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:26,397 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:26,397 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:26,397 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:26,398 INFO  L87              Difference]: Start difference. First operand 42 states and 41 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 17:27:26,404 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:26,404 INFO  L93              Difference]: Finished difference Result 34 states and 33 transitions.
[2025-05-07 17:27:26,405 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:26,405 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 17:27:26,405 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:26,405 INFO  L225             Difference]: With dead ends: 34
[2025-05-07 17:27:26,405 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:26,406 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 17:27:26,406 INFO  L437           NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 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 17:27:26,407 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:26,407 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:26,407 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:26,407 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 17:27:26,408 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:26,408 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41
[2025-05-07 17:27:26,408 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:26,408 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:26,408 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 17:27:26,408 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:26,408 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:26,410 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:26,411 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:26,413 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:27:26,415 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:26,418 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:26 BoogieIcfgContainer
[2025-05-07 17:27:26,418 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:26,418 INFO  L158              Benchmark]: Toolchain (without parser) took 1994.35ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 228.8MB in the beginning and 146.7MB in the end (delta: 82.1MB). Peak memory consumption was 13.6MB. Max. memory is 33.6GB.
[2025-05-07 17:27:26,419 INFO  L158              Benchmark]: SmtParser took 0.25ms. Allocated memory is still 234.9MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:26,419 INFO  L158              Benchmark]: ChcToBoogie took 57.70ms. Allocated memory is still 302.0MB. Free memory was 228.2MB in the beginning and 217.6MB in the end (delta: 10.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:26,419 INFO  L158              Benchmark]: Boogie Preprocessor took 79.13ms. Allocated memory is still 302.0MB. Free memory was 217.6MB in the beginning and 212.0MB in the end (delta: 5.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:26,419 INFO  L158              Benchmark]: RCFGBuilder took 841.10ms. Allocated memory is still 302.0MB. Free memory was 212.0MB in the beginning and 200.4MB in the end (delta: 11.7MB). Peak memory consumption was 58.1MB. Max. memory is 33.6GB.
[2025-05-07 17:27:26,419 INFO  L158              Benchmark]: TraceAbstraction took 1012.97ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 200.4MB in the beginning and 146.7MB in the end (delta: 53.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:26,420 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.25ms. Allocated memory is still 234.9MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 57.70ms. Allocated memory is still 302.0MB. Free memory was 228.2MB in the beginning and 217.6MB in the end (delta: 10.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 79.13ms. Allocated memory is still 302.0MB. Free memory was 217.6MB in the beginning and 212.0MB in the end (delta: 5.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 841.10ms. Allocated memory is still 302.0MB. Free memory was 212.0MB in the beginning and 200.4MB in the end (delta: 11.7MB). Peak memory consumption was 58.1MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1012.97ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 200.4MB in the beginning and 146.7MB in the end (delta: 53.7MB). 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, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 492 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 346 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 146 mSDtfsCounter, 24 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 17:27:26,431 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
