./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_32_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:28:19,873 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:28:19,924 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3563a35-7ba0-488c-b7b3-6d8a2b7ca1be/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:28:19,928 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:28:19,928 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:28:19,946 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:28:19,947 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:28:19,947 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:28:19,947 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:28:19,947 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:28:19,947 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:28:19,948 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:28:19,948 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:28:19,948 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:28:19,948 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:28:19,948 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:28:19,948 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:28:19,948 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:28:19,948 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:19,948 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:28:19,949 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:28:19,949 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:28:19,949 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:28:19,949 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:28:19,949 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:28:19,949 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:28:19,949 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:28:20,151 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:28:20,158 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:28:20,160 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:28:20,161 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:28:20,162 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:28:20,163 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3563a35-7ba0-488c-b7b3-6d8a2b7ca1be/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_32_no_adts_000.smt2
[2025-05-07 17:28:20,163 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:28:20,166 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:28:20,630 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3563a35-7ba0-488c-b7b3-6d8a2b7ca1be/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_32_no_adts_000.smt2
[2025-05-07 17:28:20,632 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:28:20,633 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:28:20,633 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:28:20,634 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:28:20,634 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:28:20,635 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,687 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20 Unit
[2025-05-07 17:28:20,687 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:28:20,688 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:28:20,688 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:28:20,688 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:28:20,698 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,699 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,723 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,724 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,735 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,737 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,739 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,743 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,746 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,764 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:28:20,764 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:28:20,764 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:28:20,765 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:28:20,765 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,767 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:20,776 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:28:20,785 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 17:28:20,787 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 17:28:20,796 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:28:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:28:20,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:28:20,796 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_53_0 given in one single declaration
[2025-05-07 17:28:20,796 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_53_0
[2025-05-07 17:28:20,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_53_0
[2025-05-07 17:28:20,796 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_203_0 given in one single declaration
[2025-05-07 17:28:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_203_0
[2025-05-07 17:28:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_203_0
[2025-05-07 17:28:20,797 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_31_C_203_0 given in one single declaration
[2025-05-07 17:28:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_31_C_203_0
[2025-05-07 17:28:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_31_C_203_0
[2025-05-07 17:28:20,797 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_constructor_202_203_0
[2025-05-07 17:28:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_constructor_202_203_0
[2025-05-07 17:28:20,797 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,797 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_constructor_202_203_0
[2025-05-07 17:28:20,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_constructor_202_203_0
[2025-05-07 17:28:20,797 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9__201_203_0 given in one single declaration
[2025-05-07 17:28:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9__201_203_0
[2025-05-07 17:28:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9__201_203_0
[2025-05-07 17:28:20,798 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_constructor_202_203_0
[2025-05-07 17:28:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_constructor_202_203_0
[2025-05-07 17:28:20,798 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_constructor_202_203_0
[2025-05-07 17:28:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_constructor_202_203_0
[2025-05-07 17:28:20,798 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_constructor_202_203_0
[2025-05-07 17:28:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_constructor_202_203_0
[2025-05-07 17:28:20,798 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_return_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:28:20,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:28:20,798 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_27_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,798 INFO  L130     BoogieDeclarations]: Found specification of procedure block_27_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_27_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_21_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,799 INFO  L130     BoogieDeclarations]: Found specification of procedure block_21_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_21_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,799 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,799 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_29_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,799 INFO  L130     BoogieDeclarations]: Found specification of procedure block_29_constructor_202_203_0
[2025-05-07 17:28:20,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_29_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,800 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_30_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,800 INFO  L130     BoogieDeclarations]: Found specification of procedure block_30_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_30_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,800 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,800 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,800 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_constructor_202_203_0
[2025-05-07 17:28:20,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_26_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure block_26_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_26_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_28_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure block_28_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_28_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_25_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,801 INFO  L130     BoogieDeclarations]: Found specification of procedure block_25_constructor_202_203_0
[2025-05-07 17:28:20,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_25_constructor_202_203_0
[2025-05-07 17:28:20,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,802 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_constructor_202_203_0
[2025-05-07 17:28:20,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_constructor_202_203_0
[2025-05-07 17:28:20,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_constructor_202_203_0 given in one single declaration
[2025-05-07 17:28:20,802 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_constructor_202_203_0
[2025-05-07 17:28:20,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_constructor_202_203_0
[2025-05-07 17:28:20,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_33_C_203_0 given in one single declaration
[2025-05-07 17:28:20,802 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:28:20,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:28:20,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_32_C_203_0 given in one single declaration
[2025-05-07 17:28:20,802 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:28:20,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:28:20,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_34_C_203_0 given in one single declaration
[2025-05-07 17:28:20,802 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:28:20,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:28:20,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:28:20,802 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:28:20,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:28:21,046 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:28:21,048 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:28:21,594 INFO  L?                        ?]: Removed 184 outVars from TransFormulas that were not future-live.
[2025-05-07 17:28:21,594 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:28:21,608 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:28:21,608 INFO  L312             CfgBuilder]: Removed 24 assume(true) statements.
[2025-05-07 17:28:21,608 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:21 BoogieIcfgContainer
[2025-05-07 17:28:21,609 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:28:21,611 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:28:21,611 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:28:21,615 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:28:21,616 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:20" (1/3) ...
[2025-05-07 17:28:21,616 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521d3658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:28:21, skipping insertion in model container
[2025-05-07 17:28:21,616 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (2/3) ...
[2025-05-07 17:28:21,617 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521d3658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:28:21, skipping insertion in model container
[2025-05-07 17:28:21,617 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:21" (3/3) ...
[2025-05-07 17:28:21,618 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:28:21,630 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:28:21,632 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 17:28:21,671 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:28:21,683 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;@7ec8254a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:28:21,683 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:28:21,686 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 17:28:21,697 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:21,697 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:21,697 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 17:28:21,698 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:21,702 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:21,702 INFO  L85        PathProgramCache]: Analyzing trace with hash 496494191, now seen corresponding path program 1 times
[2025-05-07 17:28:21,708 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:21,709 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242225761]
[2025-05-07 17:28:21,709 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:21,710 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:21,757 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:21,784 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:21,784 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:21,784 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:21,972 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 17:28:21,973 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:21,973 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242225761]
[2025-05-07 17:28:21,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242225761] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:21,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:21,977 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:21,978 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7548868]
[2025-05-07 17:28:21,979 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:21,983 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:21,983 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:22,017 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:22,017 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:22,020 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 17:28:22,061 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:22,062 INFO  L93              Difference]: Finished difference Result 68 states and 72 transitions.
[2025-05-07 17:28:22,063 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:22,064 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 17:28:22,065 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:22,071 INFO  L225             Difference]: With dead ends: 68
[2025-05-07 17:28:22,071 INFO  L226             Difference]: Without dead ends: 44
[2025-05-07 17:28:22,073 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 17:28:22,076 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 17:28:22,076 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 17:28:22,087 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2025-05-07 17:28:22,099 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2025-05-07 17:28:22,100 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 17:28:22,102 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions.
[2025-05-07 17:28:22,103 INFO  L79                 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 41
[2025-05-07 17:28:22,103 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:22,103 INFO  L485      AbstractCegarLoop]: Abstraction has 44 states and 46 transitions.
[2025-05-07 17:28:22,103 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 17:28:22,103 INFO  L278                IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions.
[2025-05-07 17:28:22,104 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:22,104 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:22,104 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 17:28:22,105 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:28:22,105 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:22,105 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:22,105 INFO  L85        PathProgramCache]: Analyzing trace with hash -1346841181, now seen corresponding path program 1 times
[2025-05-07 17:28:22,105 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:22,105 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368592310]
[2025-05-07 17:28:22,105 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:22,105 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:22,125 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:22,159 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:22,159 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:22,159 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:22,619 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 17:28:22,620 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:22,620 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368592310]
[2025-05-07 17:28:22,620 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368592310] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:22,620 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:22,620 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:28:22,620 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508040783]
[2025-05-07 17:28:22,620 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:22,621 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:28:22,621 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:22,621 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:28:22,622 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:28:22,622 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 17:28:22,668 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:22,668 INFO  L93              Difference]: Finished difference Result 44 states and 45 transitions.
[2025-05-07 17:28:22,668 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:28:22,669 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 17:28:22,669 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:22,669 INFO  L225             Difference]: With dead ends: 44
[2025-05-07 17:28:22,669 INFO  L226             Difference]: Without dead ends: 42
[2025-05-07 17:28:22,670 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 17:28:22,670 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 17:28:22,671 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 17:28:22,671 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2025-05-07 17:28:22,674 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2025-05-07 17:28:22,674 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 17:28:22,675 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions.
[2025-05-07 17:28:22,675 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 41
[2025-05-07 17:28:22,675 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:22,675 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 41 transitions.
[2025-05-07 17:28:22,675 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 17:28:22,676 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions.
[2025-05-07 17:28:22,676 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:22,676 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:22,676 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 17:28:22,677 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:22,677 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:22,677 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:22,677 INFO  L85        PathProgramCache]: Analyzing trace with hash 1869652263, now seen corresponding path program 1 times
[2025-05-07 17:28:22,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:22,677 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113242171]
[2025-05-07 17:28:22,677 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:22,677 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:22,699 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:22,707 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:22,707 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:22,707 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:22,765 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 17:28:22,765 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:22,765 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113242171]
[2025-05-07 17:28:22,765 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113242171] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:22,765 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:22,765 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:22,765 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118949927]
[2025-05-07 17:28:22,765 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:22,766 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:22,766 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:22,766 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:22,766 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:22,766 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 17:28:22,772 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:22,772 INFO  L93              Difference]: Finished difference Result 34 states and 33 transitions.
[2025-05-07 17:28:22,772 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:22,772 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 17:28:22,772 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:22,773 INFO  L225             Difference]: With dead ends: 34
[2025-05-07 17:28:22,773 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:22,773 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 17:28:22,773 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 17:28:22,773 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 17:28:22,774 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:22,774 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:22,774 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 17:28:22,774 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:22,774 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41
[2025-05-07 17:28:22,774 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:22,774 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:22,774 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 17:28:22,774 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:22,774 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:22,776 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:22,777 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:22,779 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:28:22,780 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:22,783 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:22 BoogieIcfgContainer
[2025-05-07 17:28:22,783 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:22,783 INFO  L158              Benchmark]: Toolchain (without parser) took 2150.54ms. Allocated memory is still 234.9MB. Free memory was 162.4MB in the beginning and 148.3MB in the end (delta: 14.1MB). Peak memory consumption was 13.9MB. Max. memory is 33.6GB.
[2025-05-07 17:28:22,783 INFO  L158              Benchmark]: SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 171.7MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:22,783 INFO  L158              Benchmark]: ChcToBoogie took 53.81ms. Allocated memory is still 234.9MB. Free memory was 162.4MB in the beginning and 151.7MB in the end (delta: 10.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:22,784 INFO  L158              Benchmark]: Boogie Preprocessor took 76.37ms. Allocated memory is still 234.9MB. Free memory was 151.7MB in the beginning and 146.1MB in the end (delta: 5.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:28:22,784 INFO  L158              Benchmark]: RCFGBuilder took 844.19ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 146.1MB in the beginning and 185.3MB in the end (delta: -39.2MB). Peak memory consumption was 41.1MB. Max. memory is 33.6GB.
[2025-05-07 17:28:22,784 INFO  L158              Benchmark]: TraceAbstraction took 1171.45ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 184.4MB in the beginning and 148.3MB in the end (delta: 36.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:22,785 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 171.7MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 53.81ms. Allocated memory is still 234.9MB. Free memory was 162.4MB in the beginning and 151.7MB in the end (delta: 10.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 76.37ms. Allocated memory is still 234.9MB. Free memory was 151.7MB in the beginning and 146.1MB in the end (delta: 5.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 844.19ms. Allocated memory was 234.9MB in the beginning and 302.0MB in the end (delta: 67.1MB). Free memory was 146.1MB in the beginning and 185.3MB in the end (delta: -39.2MB). Peak memory consumption was 41.1MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1171.45ms. Allocated memory was 302.0MB in the beginning and 234.9MB in the end (delta: -67.1MB). Free memory was 184.4MB in the beginning and 148.3MB in the end (delta: 36.1MB). 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, 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, 0.7s 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 17:28:22,796 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
