./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/string_literal_assignment_1.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:29:01,153 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:29:01,190 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6240e9d-faf7-4222-9b20-d68b239373c1/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:29:01,194 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:29:01,194 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:29:01,207 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:29:01,207 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:29:01,207 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:29:01,207 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:29:01,207 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:29:01,208 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:29:01,208 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:29:01,208 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:01,208 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:29:01,208 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:29:01,209 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:29:01,209 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:29:01,209 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:29:01,209 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:29:01,386 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:29:01,394 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:29:01,397 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:29:01,398 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:29:01,398 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:29:01,399 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6240e9d-faf7-4222-9b20-d68b239373c1/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/string_literal_assignment_1.sol_0_no_adts_000.smt2
[2025-05-07 17:29:01,400 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:29:01,403 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:29:01,590 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6240e9d-faf7-4222-9b20-d68b239373c1/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/types/string_literal_assignment_1.sol_0_no_adts_000.smt2
[2025-05-07 17:29:01,592 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:29:01,593 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:29:01,594 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:29:01,594 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:29:01,594 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:29:01,596 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,630 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01 Unit
[2025-05-07 17:29:01,631 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:29:01,631 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:29:01,632 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:29:01,632 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:29:01,643 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,643 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,669 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,670 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,673 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,674 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,675 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,676 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,677 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,685 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:29:01,686 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:29:01,686 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:29:01,686 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:29:01,687 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (1/1) ...
[2025-05-07 17:29:01,688 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:01,696 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:29:01,704 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 17:29:01,706 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 17:29:01,714 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:29:01,714 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:29:01,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:29:01,715 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_4_0 given in one single declaration
[2025-05-07 17:29:01,715 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_4_0
[2025-05-07 17:29:01,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_4_0
[2025-05-07 17:29:01,715 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_33_0 given in one single declaration
[2025-05-07 17:29:01,715 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_33_0
[2025-05-07 17:29:01,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_33_0
[2025-05-07 17:29:01,715 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_33_0 given in one single declaration
[2025-05-07 17:29:01,715 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_33_0
[2025-05-07 17:29:01,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_33_0
[2025-05-07 17:29:01,715 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_14_C_33_0 given in one single declaration
[2025-05-07 17:29:01,715 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_14_C_33_0
[2025-05-07 17:29:01,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_14_C_33_0
[2025-05-07 17:29:01,715 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_11_C_33_0 given in one single declaration
[2025-05-07 17:29:01,715 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_11_C_33_0
[2025-05-07 17:29:01,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_11_C_33_0
[2025-05-07 17:29:01,716 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_13_C_33_0 given in one single declaration
[2025-05-07 17:29:01,716 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_13_C_33_0
[2025-05-07 17:29:01,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_13_C_33_0
[2025-05-07 17:29:01,716 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_12_C_33_0 given in one single declaration
[2025-05-07 17:29:01,716 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_12_C_33_0
[2025-05-07 17:29:01,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_12_C_33_0
[2025-05-07 17:29:01,716 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:01,716 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__32_33_0
[2025-05-07 17:29:01,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__32_33_0
[2025-05-07 17:29:01,716 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:01,716 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__32_33_0
[2025-05-07 17:29:01,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__32_33_0
[2025-05-07 17:29:01,717 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:01,717 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__32_33_0
[2025-05-07 17:29:01,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__32_33_0
[2025-05-07 17:29:01,717 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_31_33_0 given in one single declaration
[2025-05-07 17:29:01,717 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_31_33_0
[2025-05-07 17:29:01,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_31_33_0
[2025-05-07 17:29:01,717 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:01,717 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__32_33_0
[2025-05-07 17:29:01,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__32_33_0
[2025-05-07 17:29:01,717 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:01,717 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__32_33_0
[2025-05-07 17:29:01,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__32_33_0
[2025-05-07 17:29:01,717 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:01,718 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__32_33_0
[2025-05-07 17:29:01,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__32_33_0
[2025-05-07 17:29:01,718 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__32_33_0 given in one single declaration
[2025-05-07 17:29:01,718 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__32_33_0
[2025-05-07 17:29:01,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__32_33_0
[2025-05-07 17:29:01,718 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:29:01,718 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:29:01,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:29:01,823 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:29:01,825 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:29:01,985 INFO  L?                        ?]: Removed 144 outVars from TransFormulas that were not future-live.
[2025-05-07 17:29:01,985 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:29:01,996 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:29:01,996 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:29:01,997 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:01 BoogieIcfgContainer
[2025-05-07 17:29:01,997 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:29:01,999 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:29:02,000 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:29:02,003 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:29:02,004 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:01" (1/3) ...
[2025-05-07 17:29:02,004 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2827982b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:29:02, skipping insertion in model container
[2025-05-07 17:29:02,004 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:01" (2/3) ...
[2025-05-07 17:29:02,005 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2827982b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:29:02, skipping insertion in model container
[2025-05-07 17:29:02,005 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:01" (3/3) ...
[2025-05-07 17:29:02,006 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:29:02,030 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:29:02,033 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 17 procedures, 66 locations, 97 edges, 17 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:29:02,073 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:29:02,084 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;@4b866cb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:29:02,084 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:29:02,086 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22)
[2025-05-07 17:29:02,093 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:02,093 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:02,093 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 17:29:02,094 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:02,097 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:02,097 INFO  L85        PathProgramCache]: Analyzing trace with hash 1953841432, now seen corresponding path program 1 times
[2025-05-07 17:29:02,102 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:02,102 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489437250]
[2025-05-07 17:29:02,103 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:02,103 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:02,143 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:02,191 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:02,192 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:02,192 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:02,420 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 17:29:02,421 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:02,421 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489437250]
[2025-05-07 17:29:02,421 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489437250] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:02,421 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:02,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-05-07 17:29:02,425 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667666555]
[2025-05-07 17:29:02,425 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:02,432 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-05-07 17:29:02,432 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:02,450 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-05-07 17:29:02,451 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:29:02,452 INFO  L87              Difference]: Start difference. First operand  has 66 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 20 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (22), 18 states have call predecessors, (22), 20 states have call successors, (22) Second operand  has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:29:02,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:02,508 INFO  L93              Difference]: Finished difference Result 65 states and 72 transitions.
[2025-05-07 17:29:02,509 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-05-07 17:29:02,510 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:29:02,511 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:02,517 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:29:02,517 INFO  L226             Difference]: Without dead ends: 60
[2025-05-07 17:29:02,519 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:29:02,521 INFO  L437           NwaCegarLoop]: 67 mSDtfsCounter, 1 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:29:02,522 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 254 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:02,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2025-05-07 17:29:02,549 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58.
[2025-05-07 17:29:02,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 17 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 16 states have call predecessors, (18), 17 states have call successors, (18)
[2025-05-07 17:29:02,553 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions.
[2025-05-07 17:29:02,554 INFO  L79                 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 51
[2025-05-07 17:29:02,555 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:02,555 INFO  L485      AbstractCegarLoop]: Abstraction has 58 states and 62 transitions.
[2025-05-07 17:29:02,555 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:29:02,555 INFO  L278                IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions.
[2025-05-07 17:29:02,556 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:02,557 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:02,557 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 17:29:02,557 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:29:02,557 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:02,558 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:02,558 INFO  L85        PathProgramCache]: Analyzing trace with hash 1224711068, now seen corresponding path program 1 times
[2025-05-07 17:29:02,558 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:02,558 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638014378]
[2025-05-07 17:29:02,558 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:02,558 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:02,592 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:02,619 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:02,619 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:02,619 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:02,744 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 17:29:02,744 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:02,744 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638014378]
[2025-05-07 17:29:02,744 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638014378] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:02,744 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:02,744 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:29:02,744 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569736347]
[2025-05-07 17:29:02,744 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:02,745 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:29:02,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:02,746 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:29:02,746 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:29:02,746 INFO  L87              Difference]: Start difference. First operand 58 states and 62 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), 5 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:29:02,782 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:02,782 INFO  L93              Difference]: Finished difference Result 62 states and 66 transitions.
[2025-05-07 17:29:02,782 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:29:02,782 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), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:29:02,782 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:02,783 INFO  L225             Difference]: With dead ends: 62
[2025-05-07 17:29:02,783 INFO  L226             Difference]: Without dead ends: 62
[2025-05-07 17:29:02,784 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 17:29:02,784 INFO  L437           NwaCegarLoop]: 59 mSDtfsCounter, 1 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 285 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 17:29:02,785 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 285 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:02,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2025-05-07 17:29:02,790 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2025-05-07 17:29:02,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 17 states have call successors, (18), 15 states have call predecessors, (18), 17 states have return successors, (20), 18 states have call predecessors, (20), 17 states have call successors, (20)
[2025-05-07 17:29:02,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions.
[2025-05-07 17:29:02,792 INFO  L79                 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 51
[2025-05-07 17:29:02,792 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:02,792 INFO  L485      AbstractCegarLoop]: Abstraction has 62 states and 66 transitions.
[2025-05-07 17:29:02,792 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), 5 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:29:02,792 INFO  L278                IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions.
[2025-05-07 17:29:02,793 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:02,793 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:02,794 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 17:29:02,794 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:29:02,794 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:02,794 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:02,794 INFO  L85        PathProgramCache]: Analyzing trace with hash 2127041452, now seen corresponding path program 1 times
[2025-05-07 17:29:02,794 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:02,794 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798350458]
[2025-05-07 17:29:02,795 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:02,795 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:02,815 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:02,830 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:02,830 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:02,830 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:02,965 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 17:29:02,965 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:02,965 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798350458]
[2025-05-07 17:29:02,965 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798350458] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:02,965 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:02,965 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:29:02,965 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840275132]
[2025-05-07 17:29:02,965 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:02,966 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:29:02,966 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:02,966 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:29:02,967 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:29:02,967 INFO  L87              Difference]: Start difference. First operand 62 states and 66 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), 6 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:29:03,031 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:03,031 INFO  L93              Difference]: Finished difference Result 32 states and 32 transitions.
[2025-05-07 17:29:03,032 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:29:03,032 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), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:29:03,032 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:03,032 INFO  L225             Difference]: With dead ends: 32
[2025-05-07 17:29:03,032 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:29:03,032 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 17:29:03,033 INFO  L437           NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 180 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 17:29:03,034 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 180 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:03,034 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:29:03,034 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:29:03,035 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 17:29:03,035 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:29:03,035 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:29:03,035 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:03,035 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:29:03,035 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), 6 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:29:03,035 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:29:03,035 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:29:03,037 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:29:03,038 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:29:03,040 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:29:03,042 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:29:03,044 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:29:03 BoogieIcfgContainer
[2025-05-07 17:29:03,045 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:29:03,045 INFO  L158              Benchmark]: Toolchain (without parser) took 1452.09ms. Allocated memory is still 234.9MB. Free memory was 154.5MB in the beginning and 104.6MB in the end (delta: 49.9MB). Peak memory consumption was 58.9MB. Max. memory is 33.6GB.
[2025-05-07 17:29:03,045 INFO  L158              Benchmark]: SmtParser took 0.27ms. Allocated memory is still 234.9MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:03,046 INFO  L158              Benchmark]: ChcToBoogie took 37.16ms. Allocated memory is still 234.9MB. Free memory was 154.5MB in the beginning and 151.4MB in the end (delta: 3.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:29:03,046 INFO  L158              Benchmark]: Boogie Preprocessor took 54.15ms. Allocated memory is still 234.9MB. Free memory was 151.4MB in the beginning and 147.1MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:03,046 INFO  L158              Benchmark]: RCFGBuilder took 310.70ms. Allocated memory is still 234.9MB. Free memory was 147.0MB in the beginning and 121.5MB in the end (delta: 25.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:29:03,046 INFO  L158              Benchmark]: TraceAbstraction took 1045.16ms. Allocated memory is still 234.9MB. Free memory was 120.8MB in the beginning and 104.6MB in the end (delta: 16.2MB). Peak memory consumption was 25.4MB. Max. memory is 33.6GB.
[2025-05-07 17:29:03,047 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.27ms. Allocated memory is still 234.9MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 37.16ms. Allocated memory is still 234.9MB. Free memory was 154.5MB in the beginning and 151.4MB in the end (delta: 3.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 54.15ms. Allocated memory is still 234.9MB. Free memory was 151.4MB in the beginning and 147.1MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 310.70ms. Allocated memory is still 234.9MB. Free memory was 147.0MB in the beginning and 121.5MB in the end (delta: 25.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1045.16ms. Allocated memory is still 234.9MB. Free memory was 120.8MB in the beginning and 104.6MB in the end (delta: 16.2MB). Peak memory consumption was 25.4MB. 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 17 procedures, 66 locations, 97 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 719 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 565 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 154 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:29:03,057 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
