./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_28_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:28:43,761 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:28:43,798 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_527bf084-635d-43ab-a46a-ae3e3eb50a81/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:28:43,801 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:28:43,801 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:28:43,814 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:28:43,814 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:28:43,814 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:28:43,815 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:28:43,815 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:28:43,815 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:28:43,815 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:28:43,815 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:28:43,815 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:28:43,815 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:28:43,815 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:28:43,815 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:28:43,815 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:28:43,816 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:43,816 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:28:43,816 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:28:43,816 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:28:43,816 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:28:43,816 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:28:43,816 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:28:43,816 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:28:43,816 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:28:43,993 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:28:44,001 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:28:44,003 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:28:44,004 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:28:44,004 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:28:44,005 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_527bf084-635d-43ab-a46a-ae3e3eb50a81/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_28_no_adts_000.smt2
[2025-05-07 17:28:44,006 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:28:44,008 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:28:44,420 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_527bf084-635d-43ab-a46a-ae3e3eb50a81/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_28_no_adts_000.smt2
[2025-05-07 17:28:44,422 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:28:44,423 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:28:44,424 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:28:44,424 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:28:44,424 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:28:44,426 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,490 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44 Unit
[2025-05-07 17:28:44,490 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:28:44,491 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:28:44,491 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:28:44,491 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:28:44,501 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,501 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,533 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,533 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,544 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,545 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,547 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,551 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,553 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,570 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:28:44,571 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:28:44,571 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:28:44,571 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:28:44,572 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (1/1) ...
[2025-05-07 17:28:44,573 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:44,581 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:28:44,590 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:28:44,592 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:28:44,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:28:44,599 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:28:44,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:28:44,599 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_52_0 given in one single declaration
[2025-05-07 17:28:44,599 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_52_0
[2025-05-07 17:28:44,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_52_0
[2025-05-07 17:28:44,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_203_0 given in one single declaration
[2025-05-07 17:28:44,600 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_203_0
[2025-05-07 17:28:44,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_203_0
[2025-05-07 17:28:44,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_31_C_203_0 given in one single declaration
[2025-05-07 17:28:44,600 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_31_C_203_0
[2025-05-07 17:28:44,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_31_C_203_0
[2025-05-07 17:28:44,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,600 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_constructor_202_203_0
[2025-05-07 17:28:44,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_constructor_202_203_0
[2025-05-07 17:28:44,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,600 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_constructor_202_203_0
[2025-05-07 17:28:44,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_constructor_202_203_0
[2025-05-07 17:28:44,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9__201_203_0 given in one single declaration
[2025-05-07 17:28:44,600 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9__201_203_0
[2025-05-07 17:28:44,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9__201_203_0
[2025-05-07 17:28:44,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,600 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_constructor_202_203_0
[2025-05-07 17:28:44,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_constructor_202_203_0
[2025-05-07 17:28:44,600 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,600 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_constructor_202_203_0
[2025-05-07 17:28:44,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_return_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_27_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_27_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_27_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_21_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_21_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_21_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_29_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,601 INFO  L130     BoogieDeclarations]: Found specification of procedure block_29_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_29_constructor_202_203_0
[2025-05-07 17:28:44,601 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_30_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_30_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_30_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_26_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_26_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_26_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,602 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_constructor_202_203_0
[2025-05-07 17:28:44,602 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_28_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,603 INFO  L130     BoogieDeclarations]: Found specification of procedure block_28_constructor_202_203_0
[2025-05-07 17:28:44,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_28_constructor_202_203_0
[2025-05-07 17:28:44,603 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_25_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,603 INFO  L130     BoogieDeclarations]: Found specification of procedure block_25_constructor_202_203_0
[2025-05-07 17:28:44,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_25_constructor_202_203_0
[2025-05-07 17:28:44,603 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,603 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_constructor_202_203_0
[2025-05-07 17:28:44,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_constructor_202_203_0
[2025-05-07 17:28:44,603 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:44,603 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_constructor_202_203_0
[2025-05-07 17:28:44,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_constructor_202_203_0
[2025-05-07 17:28:44,603 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_33_C_203_0 given in one single declaration
[2025-05-07 17:28:44,603 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:28:44,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:28:44,603 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_32_C_203_0 given in one single declaration
[2025-05-07 17:28:44,603 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:28:44,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:28:44,603 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_34_C_203_0 given in one single declaration
[2025-05-07 17:28:44,603 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:28:44,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:28:44,603 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:28:44,603 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:28:44,603 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:28:44,854 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:28:44,856 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:28:45,349 INFO  L?                        ?]: Removed 184 outVars from TransFormulas that were not future-live.
[2025-05-07 17:28:45,349 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:28:45,358 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:28:45,359 INFO  L312             CfgBuilder]: Removed 24 assume(true) statements.
[2025-05-07 17:28:45,359 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:45 BoogieIcfgContainer
[2025-05-07 17:28:45,359 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:28:45,361 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:28:45,361 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:28:45,364 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:28:45,364 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:44" (1/3) ...
[2025-05-07 17:28:45,365 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784b7b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:28:45, skipping insertion in model container
[2025-05-07 17:28:45,365 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:44" (2/3) ...
[2025-05-07 17:28:45,365 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784b7b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:28:45, skipping insertion in model container
[2025-05-07 17:28:45,365 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:45" (3/3) ...
[2025-05-07 17:28:45,366 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:28:45,377 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:28:45,379 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 17:28:45,410 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:28:45,419 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;@593b8d1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:28:45,419 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:28:45,423 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 17:28:45,431 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:45,431 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:45,431 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 17:28:45,432 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:45,435 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:45,436 INFO  L85        PathProgramCache]: Analyzing trace with hash 446883624, now seen corresponding path program 1 times
[2025-05-07 17:28:45,441 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:45,442 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800804329]
[2025-05-07 17:28:45,442 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:45,442 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:45,480 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:45,499 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:45,499 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:45,499 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:45,643 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:45,643 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:45,644 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800804329]
[2025-05-07 17:28:45,644 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800804329] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:45,644 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:45,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:45,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95081554]
[2025-05-07 17:28:45,648 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:45,651 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:45,651 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:45,670 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:45,671 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:45,672 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 17:28:45,717 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:45,717 INFO  L93              Difference]: Finished difference Result 68 states and 72 transitions.
[2025-05-07 17:28:45,719 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:45,720 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 17:28:45,720 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:45,731 INFO  L225             Difference]: With dead ends: 68
[2025-05-07 17:28:45,731 INFO  L226             Difference]: Without dead ends: 44
[2025-05-07 17:28:45,732 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:45,734 INFO  L437           NwaCegarLoop]: 72 mSDtfsCounter, 1 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 207 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 17:28:45,735 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 207 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:45,745 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2025-05-07 17:28:45,757 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2025-05-07 17:28:45,758 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 17:28:45,760 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions.
[2025-05-07 17:28:45,761 INFO  L79                 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 41
[2025-05-07 17:28:45,761 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:45,761 INFO  L485      AbstractCegarLoop]: Abstraction has 44 states and 46 transitions.
[2025-05-07 17:28:45,762 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 17:28:45,762 INFO  L278                IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions.
[2025-05-07 17:28:45,763 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:45,763 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:45,763 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 17:28:45,763 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:28:45,763 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:45,764 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:45,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -92368370, now seen corresponding path program 1 times
[2025-05-07 17:28:45,764 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:45,764 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797594311]
[2025-05-07 17:28:45,764 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:45,764 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:45,787 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:45,825 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:45,825 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:45,825 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:46,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:46,187 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:46,187 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797594311]
[2025-05-07 17:28:46,187 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797594311] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:46,187 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:46,187 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:28:46,187 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808140863]
[2025-05-07 17:28:46,187 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:46,188 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:28:46,188 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:46,189 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:28:46,189 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:28:46,189 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 17:28:46,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:46,237 INFO  L93              Difference]: Finished difference Result 44 states and 45 transitions.
[2025-05-07 17:28:46,237 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:28:46,238 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 17:28:46,238 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:46,238 INFO  L225             Difference]: With dead ends: 44
[2025-05-07 17:28:46,238 INFO  L226             Difference]: Without dead ends: 42
[2025-05-07 17:28:46,239 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 17:28:46,239 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 17:28:46,240 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 17:28:46,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2025-05-07 17:28:46,243 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2025-05-07 17:28:46,244 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 17:28:46,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions.
[2025-05-07 17:28:46,244 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 41
[2025-05-07 17:28:46,245 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:46,245 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 41 transitions.
[2025-05-07 17:28:46,245 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 17:28:46,245 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions.
[2025-05-07 17:28:46,246 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:46,246 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:46,246 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 17:28:46,246 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:46,246 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:46,246 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:46,247 INFO  L85        PathProgramCache]: Analyzing trace with hash -1170842222, now seen corresponding path program 1 times
[2025-05-07 17:28:46,247 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:46,247 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526594252]
[2025-05-07 17:28:46,247 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:46,247 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:46,263 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:46,267 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:46,267 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:46,267 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:46,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:46,310 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:46,310 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526594252]
[2025-05-07 17:28:46,310 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526594252] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:46,310 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:46,311 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:46,311 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739280537]
[2025-05-07 17:28:46,311 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:46,311 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:46,311 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:46,311 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:46,311 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:46,311 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 17:28:46,318 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:46,318 INFO  L93              Difference]: Finished difference Result 34 states and 33 transitions.
[2025-05-07 17:28:46,318 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:46,318 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 17:28:46,318 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:46,319 INFO  L225             Difference]: With dead ends: 34
[2025-05-07 17:28:46,319 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:46,319 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:46,319 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 17:28:46,319 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 17:28:46,320 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:46,320 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:46,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:28:46,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:46,320 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41
[2025-05-07 17:28:46,320 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:46,320 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:46,320 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 17:28:46,320 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:46,320 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:46,322 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:46,322 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:46,325 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:28:46,326 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:46,329 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:46 BoogieIcfgContainer
[2025-05-07 17:28:46,329 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:46,329 INFO  L158              Benchmark]: Toolchain (without parser) took 1906.19ms. Allocated memory is still 234.9MB. Free memory was 165.1MB in the beginning and 151.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.7MB. Max. memory is 33.6GB.
[2025-05-07 17:28:46,329 INFO  L158              Benchmark]: SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:46,329 INFO  L158              Benchmark]: ChcToBoogie took 66.63ms. Allocated memory is still 234.9MB. Free memory was 165.1MB in the beginning and 154.1MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:28:46,330 INFO  L158              Benchmark]: Boogie Preprocessor took 79.87ms. Allocated memory is still 234.9MB. Free memory was 154.1MB in the beginning and 148.7MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:46,330 INFO  L158              Benchmark]: RCFGBuilder took 788.28ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 148.7MB in the beginning and 201.0MB in the end (delta: -52.2MB). Peak memory consumption was 58.0MB. Max. memory is 33.6GB.
[2025-05-07 17:28:46,330 INFO  L158              Benchmark]: TraceAbstraction took 967.71ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 201.0MB in the beginning and 151.3MB in the end (delta: 49.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:46,331 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 66.63ms. Allocated memory is still 234.9MB. Free memory was 165.1MB in the beginning and 154.1MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 79.87ms. Allocated memory is still 234.9MB. Free memory was 154.1MB in the beginning and 148.7MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 788.28ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 148.7MB in the beginning and 201.0MB in the end (delta: -52.2MB). Peak memory consumption was 58.0MB. Max. memory is 33.6GB.
 * TraceAbstraction took 967.71ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 201.0MB in the beginning and 151.3MB in the end (delta: 49.7MB). 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: 0.9s, 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, 494 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 347 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 147 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, 0.5s 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 17:28:46,341 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
