./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/unary_add.sol_2_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:28:49,392 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:28:49,430 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd4e5a31-51a6-4085-91a9-6293c6709fac/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:28:49,433 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:28:49,433 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:28:49,446 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:28:49,446 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:28:49,446 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:28:49,447 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:28:49,447 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:28:49,447 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:28:49,447 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:28:49,447 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:28:49,447 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:28:49,447 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:28:49,447 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:28:49,447 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:28:49,447 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:28:49,447 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:49,448 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:28:49,448 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:28:49,448 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:28:49,448 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:28:49,448 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:28:49,448 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:28:49,448 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:28:49,448 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:28:49,622 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:28:49,630 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:28:49,632 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:28:49,633 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:28:49,634 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:28:49,635 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd4e5a31-51a6-4085-91a9-6293c6709fac/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/unary_add.sol_2_no_adts_000.smt2
[2025-05-07 17:28:49,636 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:28:49,639 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:28:49,846 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd4e5a31-51a6-4085-91a9-6293c6709fac/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/operators/unary_add.sol_2_no_adts_000.smt2
[2025-05-07 17:28:49,848 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:28:49,850 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:28:49,850 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:28:49,850 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:28:49,850 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:28:49,852 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,881 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49 Unit
[2025-05-07 17:28:49,881 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:28:49,881 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:28:49,881 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:28:49,881 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:28:49,893 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,893 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,913 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,913 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,917 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,918 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,919 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,921 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,922 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,933 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:28:49,934 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:28:49,934 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:28:49,934 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:28:49,935 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (1/1) ...
[2025-05-07 17:28:49,937 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:49,945 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:28:49,954 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:28:49,957 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:28:49,964 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:28:49,965 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:28:49,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:28:49,965 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_8_0 given in one single declaration
[2025-05-07 17:28:49,965 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_8_0
[2025-05-07 17:28:49,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_8_0
[2025-05-07 17:28:49,965 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,965 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__42_43_0
[2025-05-07 17:28:49,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__42_43_0
[2025-05-07 17:28:49,966 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,966 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__42_43_0
[2025-05-07 17:28:49,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__42_43_0
[2025-05-07 17:28:49,966 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,966 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__42_43_0
[2025-05-07 17:28:49,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__42_43_0
[2025-05-07 17:28:49,966 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,966 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__42_43_0
[2025-05-07 17:28:49,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__42_43_0
[2025-05-07 17:28:49,966 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_41_43_0 given in one single declaration
[2025-05-07 17:28:49,966 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_41_43_0
[2025-05-07 17:28:49,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_41_43_0
[2025-05-07 17:28:49,966 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,967 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,967 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,967 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,967 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__42_43_0 given in one single declaration
[2025-05-07 17:28:49,967 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__42_43_0
[2025-05-07 17:28:49,967 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_43_0 given in one single declaration
[2025-05-07 17:28:49,967 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_43_0
[2025-05-07 17:28:49,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_43_0
[2025-05-07 17:28:49,967 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_43_0 given in one single declaration
[2025-05-07 17:28:49,967 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_43_0
[2025-05-07 17:28:49,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_43_0
[2025-05-07 17:28:49,967 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_16_C_43_0 given in one single declaration
[2025-05-07 17:28:49,968 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_16_C_43_0
[2025-05-07 17:28:49,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_16_C_43_0
[2025-05-07 17:28:49,968 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_13_C_43_0 given in one single declaration
[2025-05-07 17:28:49,968 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_13_C_43_0
[2025-05-07 17:28:49,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_13_C_43_0
[2025-05-07 17:28:49,968 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_15_C_43_0 given in one single declaration
[2025-05-07 17:28:49,968 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_15_C_43_0
[2025-05-07 17:28:49,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_15_C_43_0
[2025-05-07 17:28:49,968 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_14_C_43_0 given in one single declaration
[2025-05-07 17:28:49,968 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_14_C_43_0
[2025-05-07 17:28:49,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_14_C_43_0
[2025-05-07 17:28:49,968 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:28:49,968 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:28:49,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:28:50,092 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:28:50,093 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:28:50,290 INFO  L?                        ?]: Removed 163 outVars from TransFormulas that were not future-live.
[2025-05-07 17:28:50,290 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:28:50,298 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:28:50,298 INFO  L312             CfgBuilder]: Removed 10 assume(true) statements.
[2025-05-07 17:28:50,298 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:50 BoogieIcfgContainer
[2025-05-07 17:28:50,299 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:28:50,300 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:28:50,300 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:28:50,302 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:28:50,303 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:49" (1/3) ...
[2025-05-07 17:28:50,303 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314edd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:28:50, skipping insertion in model container
[2025-05-07 17:28:50,303 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:49" (2/3) ...
[2025-05-07 17:28:50,303 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314edd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:28:50, skipping insertion in model container
[2025-05-07 17:28:50,303 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:50" (3/3) ...
[2025-05-07 17:28:50,304 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:28:50,314 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:28:50,316 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 19 procedures, 74 locations, 113 edges, 19 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:28:50,344 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:28:50,352 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;@25335e8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:28:50,352 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:28:50,356 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 74 states, 32 states have (on average 1.09375) internal successors, (35), 35 states have internal predecessors, (35), 22 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 20 states have call predecessors, (26), 22 states have call successors, (26)
[2025-05-07 17:28:50,362 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:28:50,362 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:50,362 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 17:28:50,362 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:50,366 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:50,366 INFO  L85        PathProgramCache]: Analyzing trace with hash 60022431, now seen corresponding path program 1 times
[2025-05-07 17:28:50,371 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:50,371 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314127725]
[2025-05-07 17:28:50,371 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:50,371 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:50,409 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:28:50,444 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:28:50,444 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:50,444 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:50,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:50,513 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:50,514 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314127725]
[2025-05-07 17:28:50,514 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314127725] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:50,514 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:50,516 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:28:50,517 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015151345]
[2025-05-07 17:28:50,517 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:50,520 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:28:50,520 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:50,535 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:28:50,536 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:28:50,537 INFO  L87              Difference]: Start difference. First operand  has 74 states, 32 states have (on average 1.09375) internal successors, (35), 35 states have internal predecessors, (35), 22 states have call successors, (26), 18 states have call predecessors, (26), 18 states have return successors, (26), 20 states have call predecessors, (26), 22 states have call successors, (26) 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 17:28:50,563 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:50,564 INFO  L93              Difference]: Finished difference Result 63 states and 70 transitions.
[2025-05-07 17:28:50,564 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:28:50,565 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 17:28:50,565 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:50,570 INFO  L225             Difference]: With dead ends: 63
[2025-05-07 17:28:50,570 INFO  L226             Difference]: Without dead ends: 60
[2025-05-07 17:28:50,571 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 17:28:50,573 INFO  L437           NwaCegarLoop]: 70 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, 70 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 17:28:50,573 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:50,586 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2025-05-07 17:28:50,603 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2025-05-07 17:28:50,604 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 25 states have (on average 1.08) internal successors, (27), 27 states have internal predecessors, (27), 19 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20)
[2025-05-07 17:28:50,609 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions.
[2025-05-07 17:28:50,610 INFO  L79                 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 51
[2025-05-07 17:28:50,615 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:50,616 INFO  L485      AbstractCegarLoop]: Abstraction has 60 states and 67 transitions.
[2025-05-07 17:28:50,616 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 17:28:50,616 INFO  L278                IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions.
[2025-05-07 17:28:50,618 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:28:50,618 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:50,618 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 17:28:50,619 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:28:50,619 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:50,620 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:50,620 INFO  L85        PathProgramCache]: Analyzing trace with hash 997493003, now seen corresponding path program 1 times
[2025-05-07 17:28:50,620 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:50,620 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554995803]
[2025-05-07 17:28:50,620 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:50,620 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:50,645 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:28:50,686 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:28:50,686 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:50,686 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:50,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:50,840 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:50,841 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554995803]
[2025-05-07 17:28:50,841 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554995803] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:50,841 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:50,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:50,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804809772]
[2025-05-07 17:28:50,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:50,842 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:50,842 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:50,842 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:50,842 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:50,843 INFO  L87              Difference]: Start difference. First operand 60 states and 67 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:28:50,885 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:50,885 INFO  L93              Difference]: Finished difference Result 65 states and 73 transitions.
[2025-05-07 17:28:50,885 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:50,886 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), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:28:50,886 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:50,887 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:28:50,887 INFO  L226             Difference]: Without dead ends: 65
[2025-05-07 17:28:50,887 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 17:28:50,887 INFO  L437           NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 328 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 17:28:50,888 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 328 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:50,888 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2025-05-07 17:28:50,892 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2025-05-07 17:28:50,892 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 65 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 29 states have internal predecessors, (29), 20 states have call successors, (21), 15 states have call predecessors, (21), 17 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23)
[2025-05-07 17:28:50,893 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions.
[2025-05-07 17:28:50,893 INFO  L79                 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 51
[2025-05-07 17:28:50,893 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:50,894 INFO  L485      AbstractCegarLoop]: Abstraction has 65 states and 73 transitions.
[2025-05-07 17:28:50,894 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), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:28:50,894 INFO  L278                IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions.
[2025-05-07 17:28:50,895 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:28:50,895 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:50,895 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 17:28:50,895 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:50,895 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:50,895 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:50,895 INFO  L85        PathProgramCache]: Analyzing trace with hash -655379029, now seen corresponding path program 1 times
[2025-05-07 17:28:50,895 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:50,895 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980635997]
[2025-05-07 17:28:50,895 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:50,895 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:50,920 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:28:50,923 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:28:50,923 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:50,923 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:50,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:50,991 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:50,991 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980635997]
[2025-05-07 17:28:50,991 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980635997] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:50,991 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:50,991 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:50,991 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929475448]
[2025-05-07 17:28:50,991 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:50,992 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:50,992 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:50,992 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:50,992 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:50,993 INFO  L87              Difference]: Start difference. First operand 65 states and 73 transitions. Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:28:51,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:51,002 INFO  L93              Difference]: Finished difference Result 69 states and 77 transitions.
[2025-05-07 17:28:51,003 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:51,003 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), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:28:51,003 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:51,003 INFO  L225             Difference]: With dead ends: 69
[2025-05-07 17:28:51,004 INFO  L226             Difference]: Without dead ends: 65
[2025-05-07 17:28:51,004 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:51,004 INFO  L437           NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:51,004 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 196 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:51,005 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2025-05-07 17:28:51,008 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63.
[2025-05-07 17:28:51,008 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 18 states have call successors, (19), 15 states have call predecessors, (19), 17 states have return successors, (21), 19 states have call predecessors, (21), 18 states have call successors, (21)
[2025-05-07 17:28:51,009 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions.
[2025-05-07 17:28:51,009 INFO  L79                 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 51
[2025-05-07 17:28:51,009 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:51,009 INFO  L485      AbstractCegarLoop]: Abstraction has 63 states and 68 transitions.
[2025-05-07 17:28:51,009 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), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:28:51,009 INFO  L278                IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions.
[2025-05-07 17:28:51,010 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:28:51,010 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:51,010 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 17:28:51,010 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:51,010 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:51,010 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:51,010 INFO  L85        PathProgramCache]: Analyzing trace with hash 2134234535, now seen corresponding path program 1 times
[2025-05-07 17:28:51,011 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:51,011 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501114437]
[2025-05-07 17:28:51,011 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:51,011 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:51,035 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:28:51,046 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:28:51,046 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:51,046 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:51,215 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:51,215 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:51,215 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501114437]
[2025-05-07 17:28:51,215 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501114437] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:51,215 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:51,215 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:28:51,215 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25746003]
[2025-05-07 17:28:51,216 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:51,216 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:28:51,216 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:51,217 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:28:51,217 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:51,217 INFO  L87              Difference]: Start difference. First operand 63 states and 68 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:28:51,281 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:51,281 INFO  L93              Difference]: Finished difference Result 57 states and 62 transitions.
[2025-05-07 17:28:51,281 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:28:51,282 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), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:28:51,282 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:51,282 INFO  L225             Difference]: With dead ends: 57
[2025-05-07 17:28:51,282 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:51,282 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 17:28:51,283 INFO  L437           NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:51,283 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 310 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:28:51,283 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:51,283 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:51,283 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:28:51,283 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:51,283 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:28:51,283 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:51,284 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:51,284 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), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:28:51,284 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:51,284 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:51,285 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:51,286 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:28:51,288 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2025-05-07 17:28:51,290 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:51,292 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:51 BoogieIcfgContainer
[2025-05-07 17:28:51,292 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:51,292 INFO  L158              Benchmark]: Toolchain (without parser) took 1443.10ms. Allocated memory is still 234.9MB. Free memory was 150.9MB in the beginning and 180.4MB in the end (delta: -29.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:51,293 INFO  L158              Benchmark]: SmtParser took 0.25ms. Allocated memory is still 234.9MB. Free memory is still 172.9MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:51,293 INFO  L158              Benchmark]: ChcToBoogie took 30.96ms. Allocated memory is still 234.9MB. Free memory was 150.9MB in the beginning and 148.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:51,293 INFO  L158              Benchmark]: Boogie Preprocessor took 52.25ms. Allocated memory is still 234.9MB. Free memory was 148.1MB in the beginning and 145.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:51,293 INFO  L158              Benchmark]: RCFGBuilder took 364.59ms. Allocated memory is still 234.9MB. Free memory was 145.0MB in the beginning and 188.8MB in the end (delta: -43.8MB). Peak memory consumption was 41.2MB. Max. memory is 33.6GB.
[2025-05-07 17:28:51,293 INFO  L158              Benchmark]: TraceAbstraction took 992.06ms. Allocated memory is still 234.9MB. Free memory was 188.2MB in the beginning and 180.4MB in the end (delta: 7.8MB). Peak memory consumption was 1.9MB. Max. memory is 33.6GB.
[2025-05-07 17:28:51,294 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.25ms. Allocated memory is still 234.9MB. Free memory is still 172.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 30.96ms. Allocated memory is still 234.9MB. Free memory was 150.9MB in the beginning and 148.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 52.25ms. Allocated memory is still 234.9MB. Free memory was 148.1MB in the beginning and 145.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 364.59ms. Allocated memory is still 234.9MB. Free memory was 145.0MB in the beginning and 188.8MB in the end (delta: -43.8MB). Peak memory consumption was 41.2MB. Max. memory is 33.6GB.
 * TraceAbstraction took 992.06ms. Allocated memory is still 234.9MB. Free memory was 188.2MB in the beginning and 180.4MB in the end (delta: 7.8MB). Peak memory consumption was 1.9MB. 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 19 procedures, 74 locations, 113 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 904 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 644 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 260 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 0.5s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 260 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 17:28:51,303 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
