./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/assignment_contract_member_variable.sol_1_no_adts_000.smt2 .


--------------------------------------------------------------------------------


This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:29,638 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:29,674 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87f413a8-e13a-4257-b486-a2e93f6f2abd/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:29,677 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:29,678 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:29,690 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:29,691 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:29,691 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:29,691 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:29,691 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:29,691 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:29,691 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:29,691 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:29,691 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:29,692 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:29,692 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:29,692 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:29,693 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:29,693 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:29,879 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:29,885 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:29,887 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:29,888 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:29,888 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:29,889 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87f413a8-e13a-4257-b486-a2e93f6f2abd/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/assignment_contract_member_variable.sol_1_no_adts_000.smt2
[2025-05-07 17:26:29,891 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:29,893 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:30,335 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87f413a8-e13a-4257-b486-a2e93f6f2abd/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/assignment_contract_member_variable.sol_1_no_adts_000.smt2
[2025-05-07 17:26:30,337 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:30,338 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:30,338 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:30,338 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:30,339 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:30,340 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,382 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30 Unit
[2025-05-07 17:26:30,382 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:30,383 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:30,383 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:30,383 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:30,394 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,394 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,417 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,417 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,426 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,428 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,430 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,433 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,435 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,448 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:30,449 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:30,449 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:30,449 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:30,449 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (1/1) ...
[2025-05-07 17:26:30,451 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:30,460 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:30,468 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 17:26:30,470 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 17:26:30,478 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:30,478 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:30,478 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:30,478 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_18_0 given in one single declaration
[2025-05-07 17:26:30,479 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_18_0
[2025-05-07 17:26:30,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_18_0
[2025-05-07 17:26:30,479 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_A_146_0 given in one single declaration
[2025-05-07 17:26:30,479 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_A_146_0
[2025-05-07 17:26:30,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_A_146_0
[2025-05-07 17:26:30,479 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_A_146_0 given in one single declaration
[2025-05-07 17:26:30,479 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_A_146_0
[2025-05-07 17:26:30,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_A_146_0
[2025-05-07 17:26:30,479 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_22_A_146_0 given in one single declaration
[2025-05-07 17:26:30,479 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_22_A_146_0
[2025-05-07 17:26:30,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_22_A_146_0
[2025-05-07 17:26:30,479 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_19_A_146_0 given in one single declaration
[2025-05-07 17:26:30,479 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_19_A_146_0
[2025-05-07 17:26:30,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_19_A_146_0
[2025-05-07 17:26:30,479 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_21_A_146_0 given in one single declaration
[2025-05-07 17:26:30,480 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_21_A_146_0
[2025-05-07 17:26:30,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_21_A_146_0
[2025-05-07 17:26:30,480 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_20_A_146_0 given in one single declaration
[2025-05-07 17:26:30,480 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_20_A_146_0
[2025-05-07 17:26:30,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_20_A_146_0
[2025-05-07 17:26:30,480 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,480 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_a__145_146_0
[2025-05-07 17:26:30,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_a__145_146_0
[2025-05-07 17:26:30,480 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,480 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_function_a__145_146_0
[2025-05-07 17:26:30,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_function_a__145_146_0
[2025-05-07 17:26:30,480 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,480 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_a__145_146_0
[2025-05-07 17:26:30,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_a__145_146_0
[2025-05-07 17:26:30,480 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,480 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_a__145_146_0
[2025-05-07 17:26:30,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_a_144_146_0 given in one single declaration
[2025-05-07 17:26:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_a_144_146_0
[2025-05-07 17:26:30,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_a_144_146_0
[2025-05-07 17:26:30,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_a__145_146_0
[2025-05-07 17:26:30,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,482 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,482 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,482 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,482 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_a__145_146_0 given in one single declaration
[2025-05-07 17:26:30,482 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_a__145_146_0
[2025-05-07 17:26:30,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_a__145_146_0
[2025-05-07 17:26:30,483 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:30,483 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:30,483 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:30,698 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:30,699 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:31,100 INFO  L?                        ?]: Removed 297 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:31,101 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:31,109 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:31,109 INFO  L312             CfgBuilder]: Removed 16 assume(true) statements.
[2025-05-07 17:26:31,109 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:31 BoogieIcfgContainer
[2025-05-07 17:26:31,109 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:31,111 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:31,111 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:31,114 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:31,114 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:30" (1/3) ...
[2025-05-07 17:26:31,114 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2288f1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:31, skipping insertion in model container
[2025-05-07 17:26:31,114 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:30" (2/3) ...
[2025-05-07 17:26:31,114 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2288f1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:31, skipping insertion in model container
[2025-05-07 17:26:31,114 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:31" (3/3) ...
[2025-05-07 17:26:31,115 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:31,125 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:31,127 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 25 procedures, 98 locations, 161 edges, 25 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:31,157 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:31,165 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;@4752ac64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:31,165 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:31,168 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 98 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 47 states have internal predecessors, (47), 28 states have call successors, (38), 24 states have call predecessors, (38), 24 states have return successors, (38), 26 states have call predecessors, (38), 28 states have call successors, (38)
[2025-05-07 17:26:31,174 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:31,174 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:31,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:31,175 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:31,178 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:31,178 INFO  L85        PathProgramCache]: Analyzing trace with hash -803501137, now seen corresponding path program 1 times
[2025-05-07 17:26:31,183 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:31,184 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607872627]
[2025-05-07 17:26:31,184 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:31,184 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:31,221 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:31,243 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:31,243 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:31,243 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:31,319 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 17:26:31,319 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:31,319 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607872627]
[2025-05-07 17:26:31,320 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607872627] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:31,320 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:31,322 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:26:31,323 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325580741]
[2025-05-07 17:26:31,324 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:31,326 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:26:31,327 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:31,345 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:26:31,345 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:26:31,347 INFO  L87              Difference]: Start difference. First operand  has 98 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 47 states have internal predecessors, (47), 28 states have call successors, (38), 24 states have call predecessors, (38), 24 states have return successors, (38), 26 states have call predecessors, (38), 28 states have call successors, (38) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:26:31,374 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:31,375 INFO  L93              Difference]: Finished difference Result 72 states and 81 transitions.
[2025-05-07 17:26:31,375 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:26:31,377 INFO  L79                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 51
[2025-05-07 17:26:31,377 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:31,384 INFO  L225             Difference]: With dead ends: 72
[2025-05-07 17:26:31,384 INFO  L226             Difference]: Without dead ends: 64
[2025-05-07 17:26:31,385 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:26:31,388 INFO  L437           NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:31,389 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:31,407 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2025-05-07 17:26:31,421 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2025-05-07 17:26:31,422 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 29 states have internal predecessors, (29), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22)
[2025-05-07 17:26:31,425 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions.
[2025-05-07 17:26:31,426 INFO  L79                 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 51
[2025-05-07 17:26:31,426 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:31,426 INFO  L485      AbstractCegarLoop]: Abstraction has 64 states and 73 transitions.
[2025-05-07 17:26:31,426 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-05-07 17:26:31,426 INFO  L278                IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions.
[2025-05-07 17:26:31,428 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:31,428 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:31,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:31,428 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:31,428 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:31,429 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:31,429 INFO  L85        PathProgramCache]: Analyzing trace with hash -375014843, now seen corresponding path program 1 times
[2025-05-07 17:26:31,429 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:31,429 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65080381]
[2025-05-07 17:26:31,429 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:31,429 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:31,450 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:31,492 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:31,492 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:31,492 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:31,638 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 17:26:31,638 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:31,638 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65080381]
[2025-05-07 17:26:31,638 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65080381] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:31,638 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:31,638 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:31,638 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431589759]
[2025-05-07 17:26:31,638 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:31,639 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:31,639 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:31,640 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:31,640 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:31,640 INFO  L87              Difference]: Start difference. First operand 64 states and 73 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:26:31,682 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:31,682 INFO  L93              Difference]: Finished difference Result 69 states and 79 transitions.
[2025-05-07 17:26:31,683 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:31,683 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:26:31,683 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:31,684 INFO  L225             Difference]: With dead ends: 69
[2025-05-07 17:26:31,684 INFO  L226             Difference]: Without dead ends: 69
[2025-05-07 17:26:31,684 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:31,684 INFO  L437           NwaCegarLoop]: 73 mSDtfsCounter, 1 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:31,685 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 353 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:31,685 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2025-05-07 17:26:31,690 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69.
[2025-05-07 17:26:31,691 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 69 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 31 states have internal predecessors, (31), 21 states have call successors, (23), 16 states have call predecessors, (23), 18 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25)
[2025-05-07 17:26:31,691 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions.
[2025-05-07 17:26:31,692 INFO  L79                 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 51
[2025-05-07 17:26:31,692 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:31,692 INFO  L485      AbstractCegarLoop]: Abstraction has 69 states and 79 transitions.
[2025-05-07 17:26:31,692 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:26:31,692 INFO  L278                IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions.
[2025-05-07 17:26:31,693 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:31,693 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:31,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:31,693 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:31,693 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:31,694 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:31,694 INFO  L85        PathProgramCache]: Analyzing trace with hash -1827779565, now seen corresponding path program 1 times
[2025-05-07 17:26:31,694 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:31,694 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385048227]
[2025-05-07 17:26:31,694 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:31,694 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:31,718 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:31,734 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:31,734 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:31,734 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:31,844 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 17:26:31,844 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:31,845 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385048227]
[2025-05-07 17:26:31,845 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385048227] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:31,845 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:31,845 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:31,845 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637422678]
[2025-05-07 17:26:31,845 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:31,845 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:31,845 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:31,846 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:31,846 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:31,846 INFO  L87              Difference]: Start difference. First operand 69 states and 79 transitions. Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:26:31,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:31,855 INFO  L93              Difference]: Finished difference Result 73 states and 83 transitions.
[2025-05-07 17:26:31,856 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:31,856 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 51
[2025-05-07 17:26:31,856 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:31,856 INFO  L225             Difference]: With dead ends: 73
[2025-05-07 17:26:31,857 INFO  L226             Difference]: Without dead ends: 69
[2025-05-07 17:26:31,857 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 17:26:31,857 INFO  L437           NwaCegarLoop]: 73 mSDtfsCounter, 1 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 212 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 17:26:31,857 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 212 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:31,858 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2025-05-07 17:26:31,861 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67.
[2025-05-07 17:26:31,861 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 19 states have call successors, (21), 16 states have call predecessors, (21), 18 states have return successors, (23), 20 states have call predecessors, (23), 19 states have call successors, (23)
[2025-05-07 17:26:31,862 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions.
[2025-05-07 17:26:31,862 INFO  L79                 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 51
[2025-05-07 17:26:31,862 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:31,862 INFO  L485      AbstractCegarLoop]: Abstraction has 67 states and 74 transitions.
[2025-05-07 17:26:31,862 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2025-05-07 17:26:31,862 INFO  L278                IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions.
[2025-05-07 17:26:31,863 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:31,863 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:31,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:31,863 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:31,863 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:31,864 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:31,864 INFO  L85        PathProgramCache]: Analyzing trace with hash -1098649201, now seen corresponding path program 1 times
[2025-05-07 17:26:31,864 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:31,864 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32004213]
[2025-05-07 17:26:31,864 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:31,864 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:31,887 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:31,905 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:31,905 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:31,906 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:32,046 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 17:26:32,047 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:32,047 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32004213]
[2025-05-07 17:26:32,047 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32004213] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:32,047 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:32,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:32,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322173512]
[2025-05-07 17:26:32,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:32,048 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:32,048 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:32,048 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:32,048 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:32,048 INFO  L87              Difference]: Start difference. First operand 67 states and 74 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:26:32,081 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:32,081 INFO  L93              Difference]: Finished difference Result 72 states and 80 transitions.
[2025-05-07 17:26:32,082 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:32,082 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:26:32,082 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:32,083 INFO  L225             Difference]: With dead ends: 72
[2025-05-07 17:26:32,083 INFO  L226             Difference]: Without dead ends: 72
[2025-05-07 17:26:32,083 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:32,083 INFO  L437           NwaCegarLoop]: 67 mSDtfsCounter, 1 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:32,083 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 323 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:32,084 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2025-05-07 17:26:32,087 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 67.
[2025-05-07 17:26:32,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 19 states have call successors, (21), 16 states have call predecessors, (21), 18 states have return successors, (23), 20 states have call predecessors, (23), 19 states have call successors, (23)
[2025-05-07 17:26:32,088 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions.
[2025-05-07 17:26:32,088 INFO  L79                 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 51
[2025-05-07 17:26:32,088 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:32,089 INFO  L485      AbstractCegarLoop]: Abstraction has 67 states and 74 transitions.
[2025-05-07 17:26:32,089 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:26:32,089 INFO  L278                IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions.
[2025-05-07 17:26:32,089 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:26:32,090 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:32,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:32,090 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:26:32,090 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:32,090 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:32,090 INFO  L85        PathProgramCache]: Analyzing trace with hash 1157014085, now seen corresponding path program 1 times
[2025-05-07 17:26:32,090 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:32,090 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577373482]
[2025-05-07 17:26:32,090 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:32,091 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:32,112 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:26:32,127 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:26:32,127 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:32,127 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:32,388 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 17:26:32,388 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:32,388 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577373482]
[2025-05-07 17:26:32,388 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577373482] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:32,388 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:32,388 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:26:32,389 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346556807]
[2025-05-07 17:26:32,389 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:32,389 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:26:32,389 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:32,390 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:26:32,390 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:32,390 INFO  L87              Difference]: Start difference. First operand 67 states and 74 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)
[2025-05-07 17:26:32,450 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:32,450 INFO  L93              Difference]: Finished difference Result 37 states and 40 transitions.
[2025-05-07 17:26:32,451 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:26:32,451 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 51
[2025-05-07 17:26:32,451 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:32,451 INFO  L225             Difference]: With dead ends: 37
[2025-05-07 17:26:32,452 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:32,452 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:32,452 INFO  L437           NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:32,453 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:32,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:32,454 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:32,454 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 17:26:32,454 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:32,454 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:26:32,454 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:32,454 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:32,454 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)
[2025-05-07 17:26:32,454 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:32,454 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:32,457 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:32,457 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:26:32,460 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2025-05-07 17:26:32,463 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:32,466 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:32 BoogieIcfgContainer
[2025-05-07 17:26:32,466 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:32,467 INFO  L158              Benchmark]: Toolchain (without parser) took 2129.04ms. Allocated memory is still 234.9MB. Free memory was 186.6MB in the beginning and 161.0MB in the end (delta: 25.6MB). Peak memory consumption was 27.4MB. Max. memory is 33.6GB.
[2025-05-07 17:26:32,467 INFO  L158              Benchmark]: SmtParser took 0.23ms. Allocated memory is still 234.9MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:32,467 INFO  L158              Benchmark]: ChcToBoogie took 44.24ms. Allocated memory is still 234.9MB. Free memory was 186.6MB in the beginning and 178.4MB in the end (delta: 8.2MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:32,468 INFO  L158              Benchmark]: Boogie Preprocessor took 65.42ms. Allocated memory is still 234.9MB. Free memory was 178.4MB in the beginning and 174.3MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:32,468 INFO  L158              Benchmark]: RCFGBuilder took 660.73ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 174.3MB in the beginning and 253.7MB in the end (delta: -79.4MB). Peak memory consumption was 74.5MB. Max. memory is 33.6GB.
[2025-05-07 17:26:32,468 INFO  L158              Benchmark]: TraceAbstraction took 1355.44ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 253.7MB in the beginning and 161.0MB in the end (delta: 92.7MB). Peak memory consumption was 5.7MB. Max. memory is 33.6GB.
[2025-05-07 17:26:32,469 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 172.5MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 44.24ms. Allocated memory is still 234.9MB. Free memory was 186.6MB in the beginning and 178.4MB in the end (delta: 8.2MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 65.42ms. Allocated memory is still 234.9MB. Free memory was 178.4MB in the beginning and 174.3MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 660.73ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 174.3MB in the beginning and 253.7MB in the end (delta: -79.4MB). Peak memory consumption was 74.5MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1355.44ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 253.7MB in the beginning and 161.0MB in the end (delta: 92.7MB). Peak memory consumption was 5.7MB. 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 25 procedures, 98 locations, 161 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 1196 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 867 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 329 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 250 ConstructedInterpolants, 0 QuantifiedInterpolants, 328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 17:26:32,481 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
