./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_bound_1.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:50,017 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:50,054 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db79058-2e81-4ab4-b384-709289ba8635/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:50,057 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:50,057 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:50,070 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:50,070 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:50,071 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:50,071 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:50,071 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:50,071 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:50,071 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:50,071 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:50,071 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:50,071 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:50,071 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:50,071 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:50,071 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:50,072 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:50,072 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:50,072 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:50,072 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:50,072 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:50,072 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:50,072 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:50,072 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:50,072 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:50,256 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:50,261 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:50,263 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:50,264 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:50,264 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:50,265 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db79058-2e81-4ab4-b384-709289ba8635/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_bound_1.sol_0_no_adts_000.smt2
[2025-05-07 17:26:50,266 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:50,268 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:50,449 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db79058-2e81-4ab4-b384-709289ba8635/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/functions_bound_1.sol_0_no_adts_000.smt2
[2025-05-07 17:26:50,451 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:50,452 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:50,452 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:50,453 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:50,453 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:50,455 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,479 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50 Unit
[2025-05-07 17:26:50,479 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:50,480 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:50,480 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:50,480 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:50,491 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,491 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,510 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,510 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,513 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,514 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,515 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,517 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,518 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,527 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:50,528 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:50,528 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:50,528 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:50,529 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (1/1) ...
[2025-05-07 17:26:50,530 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:50,538 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:50,546 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 17:26:50,548 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 17:26:50,555 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:50,556 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:50,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:50,556 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:26:50,556 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:26:50,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:26:50,556 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_4_C_50_0 given in one single declaration
[2025-05-07 17:26:50,556 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_4_C_50_0
[2025-05-07 17:26:50,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_4_C_50_0
[2025-05-07 17:26:50,556 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_6_C_50_0 given in one single declaration
[2025-05-07 17:26:50,556 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_6_C_50_0
[2025-05-07 17:26:50,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_6_C_50_0
[2025-05-07 17:26:50,557 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_31_C_50_0 given in one single declaration
[2025-05-07 17:26:50,557 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_31_C_50_0
[2025-05-07 17:26:50,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_31_C_50_0
[2025-05-07 17:26:50,557 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_28_C_50_0 given in one single declaration
[2025-05-07 17:26:50,557 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_28_C_50_0
[2025-05-07 17:26:50,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_28_C_50_0
[2025-05-07 17:26:50,557 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_30_C_50_0 given in one single declaration
[2025-05-07 17:26:50,557 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_30_C_50_0
[2025-05-07 17:26:50,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_30_C_50_0
[2025-05-07 17:26:50,558 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_29_C_50_0 given in one single declaration
[2025-05-07 17:26:50,558 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_29_C_50_0
[2025-05-07 17:26:50,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_29_C_50_0
[2025-05-07 17:26:50,558 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_9_function_f__49_50_0 given in one single declaration
[2025-05-07 17:26:50,558 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_9_function_f__49_50_0
[2025-05-07 17:26:50,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_9_function_f__49_50_0
[2025-05-07 17:26:50,558 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_27_function_f__49_50_0 given in one single declaration
[2025-05-07 17:26:50,558 INFO  L130     BoogieDeclarations]: Found specification of procedure block_27_function_f__49_50_0
[2025-05-07 17:26:50,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_27_function_f__49_50_0
[2025-05-07 17:26:50,559 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_8_function_f__49_50_0 given in one single declaration
[2025-05-07 17:26:50,559 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_8_function_f__49_50_0
[2025-05-07 17:26:50,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_8_function_f__49_50_0
[2025-05-07 17:26:50,559 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_25_function_add__26_50_0 given in one single declaration
[2025-05-07 17:26:50,559 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_25_function_add__26_50_0
[2025-05-07 17:26:50,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_25_function_add__26_50_0
[2025-05-07 17:26:50,559 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_7_function_add__26_50_0 given in one single declaration
[2025-05-07 17:26:50,559 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_7_function_add__26_50_0
[2025-05-07 17:26:50,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_7_function_add__26_50_0
[2025-05-07 17:26:50,559 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_return_function_add__26_50_0 given in one single declaration
[2025-05-07 17:26:50,560 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_return_function_add__26_50_0
[2025-05-07 17:26:50,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_return_function_add__26_50_0
[2025-05-07 17:26:50,560 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_add_25_50_0 given in one single declaration
[2025-05-07 17:26:50,560 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_add_25_50_0
[2025-05-07 17:26:50,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_add_25_50_0
[2025-05-07 17:26:50,560 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_function_add__26_50_0 given in one single declaration
[2025-05-07 17:26:50,560 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_function_add__26_50_0
[2025-05-07 17:26:50,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_function_add__26_50_0
[2025-05-07 17:26:50,560 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_f_48_50_0 given in one single declaration
[2025-05-07 17:26:50,560 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_f_48_50_0
[2025-05-07 17:26:50,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_f_48_50_0
[2025-05-07 17:26:50,560 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_function_f__49_50_0 given in one single declaration
[2025-05-07 17:26:50,560 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_function_f__49_50_0
[2025-05-07 17:26:50,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_function_f__49_50_0
[2025-05-07 17:26:50,561 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_return_function_f__49_50_0 given in one single declaration
[2025-05-07 17:26:50,561 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_return_function_f__49_50_0
[2025-05-07 17:26:50,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_return_function_f__49_50_0
[2025-05-07 17:26:50,561 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_26_function_f__49_50_0 given in one single declaration
[2025-05-07 17:26:50,561 INFO  L130     BoogieDeclarations]: Found specification of procedure block_26_function_f__49_50_0
[2025-05-07 17:26:50,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_26_function_f__49_50_0
[2025-05-07 17:26:50,561 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:50,561 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:50,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:50,679 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:50,682 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:50,906 INFO  L?                        ?]: Removed 154 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:50,907 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:50,916 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:50,916 INFO  L312             CfgBuilder]: Removed 10 assume(true) statements.
[2025-05-07 17:26:50,916 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:50 BoogieIcfgContainer
[2025-05-07 17:26:50,916 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:50,918 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:50,918 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:50,920 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:50,920 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:50" (1/3) ...
[2025-05-07 17:26:50,921 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5375d60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:50, skipping insertion in model container
[2025-05-07 17:26:50,921 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:50" (2/3) ...
[2025-05-07 17:26:50,921 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5375d60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:50, skipping insertion in model container
[2025-05-07 17:26:50,921 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:50" (3/3) ...
[2025-05-07 17:26:50,922 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:50,932 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:50,933 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 21 procedures, 82 locations, 121 edges, 21 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:50,960 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:50,968 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;@2edb55e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:50,969 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:50,971 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 82 states, 34 states have (on average 1.088235294117647) internal successors, (37), 37 states have internal predecessors, (37), 27 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 24 states have call predecessors, (28), 27 states have call successors, (28)
[2025-05-07 17:26:50,978 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:26:50,978 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:50,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:50,978 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:50,982 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:50,982 INFO  L85        PathProgramCache]: Analyzing trace with hash 2124143630, now seen corresponding path program 1 times
[2025-05-07 17:26:50,987 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:50,987 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309861792]
[2025-05-07 17:26:50,987 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:50,988 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:51,035 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:26:51,096 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:26:51,096 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:51,096 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:51,302 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 17:26:51,302 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:51,303 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309861792]
[2025-05-07 17:26:51,303 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309861792] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:51,303 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:51,305 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:51,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208209466]
[2025-05-07 17:26:51,307 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:51,310 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:51,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:51,337 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:51,338 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:51,340 INFO  L87              Difference]: Start difference. First operand  has 82 states, 34 states have (on average 1.088235294117647) internal successors, (37), 37 states have internal predecessors, (37), 27 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 24 states have call predecessors, (28), 27 states have call successors, (28) Second operand  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:26:51,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:51,383 INFO  L93              Difference]: Finished difference Result 84 states and 95 transitions.
[2025-05-07 17:26:51,384 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:51,386 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 65
[2025-05-07 17:26:51,386 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:51,394 INFO  L225             Difference]: With dead ends: 84
[2025-05-07 17:26:51,394 INFO  L226             Difference]: Without dead ends: 80
[2025-05-07 17:26:51,396 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 17:26:51,399 INFO  L437           NwaCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 266 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 17:26:51,400 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 266 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:51,414 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2025-05-07 17:26:51,436 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78.
[2025-05-07 17:26:51,437 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 34 states have internal predecessors, (34), 25 states have call successors, (26), 20 states have call predecessors, (26), 20 states have return successors, (26), 23 states have call predecessors, (26), 25 states have call successors, (26)
[2025-05-07 17:26:51,441 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions.
[2025-05-07 17:26:51,442 INFO  L79                 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 65
[2025-05-07 17:26:51,443 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:51,443 INFO  L485      AbstractCegarLoop]: Abstraction has 78 states and 86 transitions.
[2025-05-07 17:26:51,444 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:26:51,444 INFO  L278                IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions.
[2025-05-07 17:26:51,446 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:26:51,446 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:51,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:51,446 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:51,446 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:51,447 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:51,447 INFO  L85        PathProgramCache]: Analyzing trace with hash 1395013266, now seen corresponding path program 1 times
[2025-05-07 17:26:51,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:51,447 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466658441]
[2025-05-07 17:26:51,447 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:51,447 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:51,482 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:26:51,505 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:26:51,505 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:51,506 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:51,660 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 17:26:51,660 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:51,661 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466658441]
[2025-05-07 17:26:51,661 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466658441] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:51,661 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:51,661 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:26:51,661 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253952245]
[2025-05-07 17:26:51,661 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:51,662 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:26:51,662 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:51,663 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:26:51,663 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:26:51,663 INFO  L87              Difference]: Start difference. First operand 78 states and 86 transitions. Second operand  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:26:51,728 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:51,728 INFO  L93              Difference]: Finished difference Result 78 states and 85 transitions.
[2025-05-07 17:26:51,729 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:26:51,729 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18) Word has length 65
[2025-05-07 17:26:51,729 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:51,730 INFO  L225             Difference]: With dead ends: 78
[2025-05-07 17:26:51,730 INFO  L226             Difference]: Without dead ends: 76
[2025-05-07 17:26:51,731 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:26:51,731 INFO  L437           NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:51,731 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 465 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:51,732 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2025-05-07 17:26:51,737 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76.
[2025-05-07 17:26:51,738 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 32 states have (on average 1.03125) internal successors, (33), 33 states have internal predecessors, (33), 23 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (24), 22 states have call predecessors, (24), 23 states have call successors, (24)
[2025-05-07 17:26:51,739 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions.
[2025-05-07 17:26:51,739 INFO  L79                 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 65
[2025-05-07 17:26:51,739 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:51,739 INFO  L485      AbstractCegarLoop]: Abstraction has 76 states and 81 transitions.
[2025-05-07 17:26:51,739 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 7 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:26:51,739 INFO  L278                IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions.
[2025-05-07 17:26:51,741 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:26:51,741 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:51,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:51,741 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:51,741 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:51,742 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:51,742 INFO  L85        PathProgramCache]: Analyzing trace with hash -285935587, now seen corresponding path program 1 times
[2025-05-07 17:26:51,742 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:51,742 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790445304]
[2025-05-07 17:26:51,742 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:51,742 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:51,767 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:26:51,788 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:26:51,788 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:51,789 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:52,214 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 17:26:52,215 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:52,215 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790445304]
[2025-05-07 17:26:52,215 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790445304] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:52,215 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:52,215 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:26:52,215 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933351757]
[2025-05-07 17:26:52,215 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:52,215 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:26:52,215 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:52,216 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:26:52,216 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:52,216 INFO  L87              Difference]: Start difference. First operand 76 states and 81 transitions. Second operand  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:26:52,280 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:52,280 INFO  L93              Difference]: Finished difference Result 74 states and 78 transitions.
[2025-05-07 17:26:52,281 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:26:52,281 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:26:52,281 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:52,282 INFO  L225             Difference]: With dead ends: 74
[2025-05-07 17:26:52,282 INFO  L226             Difference]: Without dead ends: 71
[2025-05-07 17:26:52,282 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:26:52,283 INFO  L437           NwaCegarLoop]: 74 mSDtfsCounter, 1 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:52,283 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 501 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:52,283 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2025-05-07 17:26:52,286 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2025-05-07 17:26:52,286 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 31 states have internal predecessors, (31), 21 states have call successors, (21), 19 states have call predecessors, (21), 19 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21)
[2025-05-07 17:26:52,287 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions.
[2025-05-07 17:26:52,287 INFO  L79                 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 68
[2025-05-07 17:26:52,287 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:52,287 INFO  L485      AbstractCegarLoop]: Abstraction has 71 states and 73 transitions.
[2025-05-07 17:26:52,287 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:26:52,287 INFO  L278                IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions.
[2025-05-07 17:26:52,288 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:26:52,288 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:52,288 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:52,288 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:52,288 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:52,289 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:52,289 INFO  L85        PathProgramCache]: Analyzing trace with hash 280791965, now seen corresponding path program 1 times
[2025-05-07 17:26:52,289 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:52,289 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035182007]
[2025-05-07 17:26:52,289 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:52,289 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:52,312 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:26:52,325 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:26:52,325 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:52,325 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:52,431 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 17:26:52,431 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:52,431 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035182007]
[2025-05-07 17:26:52,431 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035182007] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:52,431 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:52,431 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:52,431 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316724486]
[2025-05-07 17:26:52,431 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:52,432 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:52,432 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:52,432 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:52,433 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:52,433 INFO  L87              Difference]: Start difference. First operand 71 states and 73 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:26:52,452 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:52,452 INFO  L93              Difference]: Finished difference Result 41 states and 40 transitions.
[2025-05-07 17:26:52,452 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:52,453 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:26:52,453 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:52,453 INFO  L225             Difference]: With dead ends: 41
[2025-05-07 17:26:52,453 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:52,453 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 17:26:52,454 INFO  L437           NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:52,454 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:52,454 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:52,455 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:52,455 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 17:26:52,455 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:52,455 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68
[2025-05-07 17:26:52,455 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:52,455 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:52,455 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:26:52,455 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:52,455 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:52,457 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:52,457 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:26:52,459 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2025-05-07 17:26:52,461 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:52,463 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:52 BoogieIcfgContainer
[2025-05-07 17:26:52,463 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:52,464 INFO  L158              Benchmark]: Toolchain (without parser) took 2011.96ms. Allocated memory is still 234.9MB. Free memory was 153.8MB in the beginning and 154.2MB in the end (delta: -403.7kB). Peak memory consumption was 11.2MB. Max. memory is 33.6GB.
[2025-05-07 17:26:52,464 INFO  L158              Benchmark]: SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:52,464 INFO  L158              Benchmark]: ChcToBoogie took 27.00ms. Allocated memory is still 234.9MB. Free memory was 153.8MB in the beginning and 151.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:52,464 INFO  L158              Benchmark]: Boogie Preprocessor took 47.51ms. Allocated memory is still 234.9MB. Free memory was 151.3MB in the beginning and 148.3MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:52,464 INFO  L158              Benchmark]: RCFGBuilder took 388.55ms. Allocated memory is still 234.9MB. Free memory was 148.3MB in the beginning and 190.8MB in the end (delta: -42.5MB). Peak memory consumption was 43.0MB. Max. memory is 33.6GB.
[2025-05-07 17:26:52,465 INFO  L158              Benchmark]: TraceAbstraction took 1545.71ms. Allocated memory is still 234.9MB. Free memory was 190.4MB in the beginning and 154.2MB in the end (delta: 36.2MB). Peak memory consumption was 35.3MB. Max. memory is 33.6GB.
[2025-05-07 17:26:52,465 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 27.00ms. Allocated memory is still 234.9MB. Free memory was 153.8MB in the beginning and 151.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 47.51ms. Allocated memory is still 234.9MB. Free memory was 151.3MB in the beginning and 148.3MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 388.55ms. Allocated memory is still 234.9MB. Free memory was 148.3MB in the beginning and 190.8MB in the end (delta: -42.5MB). Peak memory consumption was 43.0MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1545.71ms. Allocated memory is still 234.9MB. Free memory was 190.4MB in the beginning and 154.2MB in the end (delta: 36.2MB). Peak memory consumption was 35.3MB. 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 21 procedures, 82 locations, 121 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 1411 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1128 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 283 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 17:26:52,476 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
