./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_24_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:32,830 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:32,884 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f220d92d-2a94-4cd4-89e3-fdfb5ee14008/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:32,888 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:32,888 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:32,906 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:32,907 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:32,907 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:32,907 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:32,907 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:32,908 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:32,908 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:32,908 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:32,908 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:32,908 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:32,908 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:32,908 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:32,908 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:32,908 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:32,909 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:32,909 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:32,909 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:32,909 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:32,909 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:32,909 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:32,910 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:32,910 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:33,125 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:33,131 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:33,133 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:33,134 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:33,134 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:33,135 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f220d92d-2a94-4cd4-89e3-fdfb5ee14008/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_24_no_adts_000.smt2
[2025-05-07 17:27:33,136 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:33,139 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:33,614 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f220d92d-2a94-4cd4-89e3-fdfb5ee14008/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/range_check.sol_24_no_adts_000.smt2
[2025-05-07 17:27:33,617 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:33,618 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:33,618 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:33,618 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:33,618 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:33,620 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,683 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33 Unit
[2025-05-07 17:27:33,684 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:33,684 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:33,685 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:33,685 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:33,696 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,696 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,730 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,730 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,743 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,745 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,747 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,751 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,753 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,769 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:33,770 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:33,770 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:33,770 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:33,771 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (1/1) ...
[2025-05-07 17:27:33,772 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:33,780 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:33,789 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:27:33,792 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:27:33,799 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:33,799 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:33,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:33,799 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_43_0 given in one single declaration
[2025-05-07 17:27:33,799 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_43_0
[2025-05-07 17:27:33,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_43_0
[2025-05-07 17:27:33,799 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_203_0 given in one single declaration
[2025-05-07 17:27:33,799 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_203_0
[2025-05-07 17:27:33,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_203_0
[2025-05-07 17:27:33,799 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_31_C_203_0 given in one single declaration
[2025-05-07 17:27:33,799 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_31_C_203_0
[2025-05-07 17:27:33,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_31_C_203_0
[2025-05-07 17:27:33,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,800 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_constructor_202_203_0
[2025-05-07 17:27:33,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_constructor_202_203_0
[2025-05-07 17:27:33,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,800 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_constructor_202_203_0
[2025-05-07 17:27:33,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_constructor_202_203_0
[2025-05-07 17:27:33,800 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9__201_203_0 given in one single declaration
[2025-05-07 17:27:33,800 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9__201_203_0
[2025-05-07 17:27:33,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9__201_203_0
[2025-05-07 17:27:33,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,801 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_constructor_202_203_0
[2025-05-07 17:27:33,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_constructor_202_203_0
[2025-05-07 17:27:33,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,801 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_constructor_202_203_0
[2025-05-07 17:27:33,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_constructor_202_203_0
[2025-05-07 17:27:33,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,801 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_constructor_202_203_0
[2025-05-07 17:27:33,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_constructor_202_203_0
[2025-05-07 17:27:33,801 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_return_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,802 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:27:33,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_return_constructor_202_203_0
[2025-05-07 17:27:33,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_27_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,802 INFO  L130     BoogieDeclarations]: Found specification of procedure block_27_constructor_202_203_0
[2025-05-07 17:27:33,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_27_constructor_202_203_0
[2025-05-07 17:27:33,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_21_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,802 INFO  L130     BoogieDeclarations]: Found specification of procedure block_21_constructor_202_203_0
[2025-05-07 17:27:33,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_21_constructor_202_203_0
[2025-05-07 17:27:33,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,802 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_constructor_202_203_0
[2025-05-07 17:27:33,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_constructor_202_203_0
[2025-05-07 17:27:33,802 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,803 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_constructor_202_203_0
[2025-05-07 17:27:33,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_constructor_202_203_0
[2025-05-07 17:27:33,803 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_29_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,803 INFO  L130     BoogieDeclarations]: Found specification of procedure block_29_constructor_202_203_0
[2025-05-07 17:27:33,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_29_constructor_202_203_0
[2025-05-07 17:27:33,803 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,803 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_constructor_202_203_0
[2025-05-07 17:27:33,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_constructor_202_203_0
[2025-05-07 17:27:33,803 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_30_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,803 INFO  L130     BoogieDeclarations]: Found specification of procedure block_30_constructor_202_203_0
[2025-05-07 17:27:33,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_30_constructor_202_203_0
[2025-05-07 17:27:33,803 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,803 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_constructor_202_203_0
[2025-05-07 17:27:33,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_constructor_202_203_0
[2025-05-07 17:27:33,804 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,804 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_constructor_202_203_0
[2025-05-07 17:27:33,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_constructor_202_203_0
[2025-05-07 17:27:33,804 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,804 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_constructor_202_203_0
[2025-05-07 17:27:33,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_constructor_202_203_0
[2025-05-07 17:27:33,804 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,804 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_constructor_202_203_0
[2025-05-07 17:27:33,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_constructor_202_203_0
[2025-05-07 17:27:33,804 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_26_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,804 INFO  L130     BoogieDeclarations]: Found specification of procedure block_26_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_26_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,805 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_28_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,805 INFO  L130     BoogieDeclarations]: Found specification of procedure block_28_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_28_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_25_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,805 INFO  L130     BoogieDeclarations]: Found specification of procedure block_25_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_25_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,805 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_constructor_202_203_0
[2025-05-07 17:27:33,805 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_constructor_202_203_0 given in one single declaration
[2025-05-07 17:27:33,806 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_constructor_202_203_0
[2025-05-07 17:27:33,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_constructor_202_203_0
[2025-05-07 17:27:33,806 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_33_C_203_0 given in one single declaration
[2025-05-07 17:27:33,806 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:27:33,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_33_C_203_0
[2025-05-07 17:27:33,806 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_32_C_203_0 given in one single declaration
[2025-05-07 17:27:33,806 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:27:33,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_32_C_203_0
[2025-05-07 17:27:33,806 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_34_C_203_0 given in one single declaration
[2025-05-07 17:27:33,806 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:27:33,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_34_C_203_0
[2025-05-07 17:27:33,806 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:33,806 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:33,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:34,064 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:34,066 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:34,544 INFO  L?                        ?]: Removed 184 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:34,544 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:34,554 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:34,555 INFO  L312             CfgBuilder]: Removed 24 assume(true) statements.
[2025-05-07 17:27:34,555 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:34 BoogieIcfgContainer
[2025-05-07 17:27:34,555 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:34,557 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:34,557 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:34,559 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:34,560 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:33" (1/3) ...
[2025-05-07 17:27:34,560 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138d712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:34, skipping insertion in model container
[2025-05-07 17:27:34,560 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:33" (2/3) ...
[2025-05-07 17:27:34,560 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138d712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:34, skipping insertion in model container
[2025-05-07 17:27:34,560 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:34" (3/3) ...
[2025-05-07 17:27:34,561 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:34,572 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:34,573 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 32 procedures, 128 locations, 228 edges, 32 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:34,608 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:34,618 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;@6f4c76dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:34,618 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:34,622 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 128 states, 60 states have (on average 1.05) internal successors, (63), 63 states have internal predecessors, (63), 35 states have call successors, (55), 31 states have call predecessors, (55), 31 states have return successors, (55), 33 states have call predecessors, (55), 35 states have call successors, (55)
[2025-05-07 17:27:34,631 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:34,631 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:34,632 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:34,632 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:34,636 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:34,636 INFO  L85        PathProgramCache]: Analyzing trace with hash -26799834, now seen corresponding path program 1 times
[2025-05-07 17:27:34,641 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:34,642 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925101168]
[2025-05-07 17:27:34,642 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:34,642 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:34,678 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:34,705 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:34,705 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:34,705 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:34,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:34,875 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:34,876 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925101168]
[2025-05-07 17:27:34,876 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925101168] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:34,876 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:34,878 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:34,879 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241315379]
[2025-05-07 17:27:34,880 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:34,883 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:34,883 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:34,918 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:34,919 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:34,921 INFO  L87              Difference]: Start difference. First operand  has 128 states, 60 states have (on average 1.05) internal successors, (63), 63 states have internal predecessors, (63), 35 states have call successors, (55), 31 states have call predecessors, (55), 31 states have return successors, (55), 33 states have call predecessors, (55), 35 states have call successors, (55) Second operand  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:27:34,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:34,960 INFO  L93              Difference]: Finished difference Result 68 states and 72 transitions.
[2025-05-07 17:27:34,961 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:34,962 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 41
[2025-05-07 17:27:34,963 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:34,969 INFO  L225             Difference]: With dead ends: 68
[2025-05-07 17:27:34,969 INFO  L226             Difference]: Without dead ends: 44
[2025-05-07 17:27:34,971 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:34,973 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 17:27:34,974 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 17:27:34,987 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2025-05-07 17:27:35,004 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2025-05-07 17:27:35,006 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 20 states have internal predecessors, (20), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13)
[2025-05-07 17:27:35,009 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions.
[2025-05-07 17:27:35,010 INFO  L79                 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 41
[2025-05-07 17:27:35,010 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,010 INFO  L485      AbstractCegarLoop]: Abstraction has 44 states and 46 transitions.
[2025-05-07 17:27:35,010 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:27:35,011 INFO  L278                IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions.
[2025-05-07 17:27:35,012 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:35,012 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,012 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,012 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:35,013 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,013 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,013 INFO  L85        PathProgramCache]: Analyzing trace with hash -1870135206, now seen corresponding path program 1 times
[2025-05-07 17:27:35,013 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,013 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741655949]
[2025-05-07 17:27:35,014 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,014 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,039 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:35,096 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:35,096 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,096 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,566 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,566 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,566 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741655949]
[2025-05-07 17:27:35,566 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741655949] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,566 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,566 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:27:35,566 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862451679]
[2025-05-07 17:27:35,566 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,567 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:27:35,567 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,568 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:27:35,568 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:35,568 INFO  L87              Difference]: Start difference. First operand 44 states and 46 transitions. Second operand  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11)
[2025-05-07 17:27:35,612 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,612 INFO  L93              Difference]: Finished difference Result 44 states and 45 transitions.
[2025-05-07 17:27:35,612 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:27:35,613 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 41
[2025-05-07 17:27:35,613 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,613 INFO  L225             Difference]: With dead ends: 44
[2025-05-07 17:27:35,614 INFO  L226             Difference]: Without dead ends: 42
[2025-05-07 17:27:35,614 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:27:35,615 INFO  L437           NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,615 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,615 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2025-05-07 17:27:35,618 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2025-05-07 17:27:35,619 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2025-05-07 17:27:35,619 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions.
[2025-05-07 17:27:35,619 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 41
[2025-05-07 17:27:35,620 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,620 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 41 transitions.
[2025-05-07 17:27:35,620 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11)
[2025-05-07 17:27:35,620 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions.
[2025-05-07 17:27:35,621 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:27:35,621 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:35,621 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:35,621 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:35,621 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:35,621 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:35,622 INFO  L85        PathProgramCache]: Analyzing trace with hash 1346358238, now seen corresponding path program 1 times
[2025-05-07 17:27:35,622 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:35,622 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177244619]
[2025-05-07 17:27:35,622 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:35,622 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:35,639 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:27:35,643 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:27:35,643 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:35,643 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:35,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:35,687 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:35,687 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177244619]
[2025-05-07 17:27:35,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177244619] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:35,687 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:35,687 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:35,687 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556941299]
[2025-05-07 17:27:35,687 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:35,688 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:35,688 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:35,689 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:35,689 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:35,689 INFO  L87              Difference]: Start difference. First operand 42 states and 41 transitions. Second operand  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:27:35,695 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:35,696 INFO  L93              Difference]: Finished difference Result 34 states and 33 transitions.
[2025-05-07 17:27:35,696 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:35,696 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 41
[2025-05-07 17:27:35,696 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:35,696 INFO  L225             Difference]: With dead ends: 34
[2025-05-07 17:27:35,696 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:35,697 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:35,697 INFO  L437           NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:35,697 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:35,698 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:35,698 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:35,698 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:27:35,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:35,698 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41
[2025-05-07 17:27:35,698 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:35,698 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:35,698 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:27:35,698 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:35,699 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:35,700 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:35,701 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:35,703 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:27:35,704 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:35,707 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:35 BoogieIcfgContainer
[2025-05-07 17:27:35,707 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:35,707 INFO  L158              Benchmark]: Toolchain (without parser) took 2089.60ms. Allocated memory is still 234.9MB. Free memory was 162.2MB in the beginning and 143.6MB in the end (delta: 18.7MB). Peak memory consumption was 13.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:35,707 INFO  L158              Benchmark]: SmtParser took 0.23ms. 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 17:27:35,708 INFO  L158              Benchmark]: ChcToBoogie took 65.74ms. Allocated memory is still 234.9MB. Free memory was 162.2MB in the beginning and 151.4MB in the end (delta: 10.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:35,708 INFO  L158              Benchmark]: Boogie Preprocessor took 84.82ms. Allocated memory is still 234.9MB. Free memory was 151.4MB in the beginning and 145.7MB in the end (delta: 5.7MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:35,708 INFO  L158              Benchmark]: RCFGBuilder took 785.39ms. Allocated memory is still 234.9MB. Free memory was 145.7MB in the beginning and 117.5MB in the end (delta: 28.2MB). Peak memory consumption was 41.5MB. Max. memory is 33.6GB.
[2025-05-07 17:27:35,708 INFO  L158              Benchmark]: TraceAbstraction took 1150.05ms. Allocated memory is still 234.9MB. Free memory was 117.5MB in the beginning and 143.6MB in the end (delta: -26.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:35,709 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.23ms. Allocated memory is still 234.9MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 65.74ms. Allocated memory is still 234.9MB. Free memory was 162.2MB in the beginning and 151.4MB in the end (delta: 10.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 84.82ms. Allocated memory is still 234.9MB. Free memory was 151.4MB in the beginning and 145.7MB in the end (delta: 5.7MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 785.39ms. Allocated memory is still 234.9MB. Free memory was 145.7MB in the beginning and 117.5MB in the end (delta: 28.2MB). Peak memory consumption was 41.5MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1150.05ms. Allocated memory is still 234.9MB. Free memory was 117.5MB in the beginning and 143.6MB in the end (delta: -26.0MB). 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 17:27:35,719 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
