./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/shadowing_1.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:29:08,209 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:29:08,252 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce23a84-ad63-4685-a19d-242d9ef1e88b/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:29:08,255 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:29:08,256 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:29:08,273 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:29:08,274 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:29:08,274 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:29:08,274 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:29:08,274 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:29:08,275 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:29:08,275 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:29:08,275 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:29:08,275 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:29:08,275 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:29:08,275 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:29:08,275 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:29:08,275 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:29:08,275 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:08,276 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:29:08,276 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:29:08,276 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:29:08,276 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:29:08,276 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:29:08,276 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:29:08,277 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:29:08,277 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:29:08,477 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:29:08,484 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:29:08,486 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:29:08,488 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:29:08,488 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:29:08,489 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce23a84-ad63-4685-a19d-242d9ef1e88b/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/shadowing_1.sol_0_no_adts_000.smt2
[2025-05-07 17:29:08,489 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:29:08,492 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:29:08,735 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce23a84-ad63-4685-a19d-242d9ef1e88b/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/special/shadowing_1.sol_0_no_adts_000.smt2
[2025-05-07 17:29:08,737 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:29:08,738 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:29:08,739 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:29:08,739 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:29:08,739 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:29:08,741 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,771 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08 Unit
[2025-05-07 17:29:08,771 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:29:08,771 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:29:08,771 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:29:08,772 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:29:08,782 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,783 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,804 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,804 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,808 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,809 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,810 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,812 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,813 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,824 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:29:08,825 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:29:08,825 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:29:08,825 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:29:08,826 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (1/1) ...
[2025-05-07 17:29:08,827 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:08,836 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:29:08,846 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 17:29:08,849 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 17:29:08,860 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:29:08,860 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:29:08,860 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:29:08,860 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_8_0 given in one single declaration
[2025-05-07 17:29:08,860 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_8_0
[2025-05-07 17:29:08,860 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_8_0
[2025-05-07 17:29:08,860 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,860 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__78_79_0
[2025-05-07 17:29:08,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__78_79_0
[2025-05-07 17:29:08,861 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,861 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__78_79_0
[2025-05-07 17:29:08,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__78_79_0
[2025-05-07 17:29:08,861 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,861 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__78_79_0
[2025-05-07 17:29:08,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__78_79_0
[2025-05-07 17:29:08,861 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,861 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__78_79_0
[2025-05-07 17:29:08,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__78_79_0
[2025-05-07 17:29:08,861 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_77_79_0 given in one single declaration
[2025-05-07 17:29:08,861 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_77_79_0
[2025-05-07 17:29:08,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_77_79_0
[2025-05-07 17:29:08,862 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,862 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__78_79_0
[2025-05-07 17:29:08,862 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__78_79_0
[2025-05-07 17:29:08,862 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,862 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_function_f__78_79_0
[2025-05-07 17:29:08,862 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_function_f__78_79_0
[2025-05-07 17:29:08,862 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,862 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__78_79_0
[2025-05-07 17:29:08,862 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__78_79_0
[2025-05-07 17:29:08,862 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,862 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__78_79_0
[2025-05-07 17:29:08,862 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__78_79_0
[2025-05-07 17:29:08,863 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__78_79_0 given in one single declaration
[2025-05-07 17:29:08,863 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__78_79_0
[2025-05-07 17:29:08,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__78_79_0
[2025-05-07 17:29:08,863 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_79_0 given in one single declaration
[2025-05-07 17:29:08,863 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_79_0
[2025-05-07 17:29:08,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_79_0
[2025-05-07 17:29:08,863 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_79_0 given in one single declaration
[2025-05-07 17:29:08,863 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_79_0
[2025-05-07 17:29:08,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_79_0
[2025-05-07 17:29:08,863 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_13_C_79_0 given in one single declaration
[2025-05-07 17:29:08,863 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_13_C_79_0
[2025-05-07 17:29:08,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_13_C_79_0
[2025-05-07 17:29:08,863 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_15_C_79_0 given in one single declaration
[2025-05-07 17:29:08,863 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_15_C_79_0
[2025-05-07 17:29:08,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_15_C_79_0
[2025-05-07 17:29:08,864 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_14_C_79_0 given in one single declaration
[2025-05-07 17:29:08,864 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_14_C_79_0
[2025-05-07 17:29:08,864 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_14_C_79_0
[2025-05-07 17:29:08,864 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_16_C_79_0 given in one single declaration
[2025-05-07 17:29:08,864 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_16_C_79_0
[2025-05-07 17:29:08,864 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_16_C_79_0
[2025-05-07 17:29:08,864 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:29:08,864 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:29:08,864 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:29:09,018 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:29:09,020 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:29:09,264 INFO  L?                        ?]: Removed 234 outVars from TransFormulas that were not future-live.
[2025-05-07 17:29:09,264 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:29:09,275 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:29:09,275 INFO  L312             CfgBuilder]: Removed 10 assume(true) statements.
[2025-05-07 17:29:09,276 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:09 BoogieIcfgContainer
[2025-05-07 17:29:09,276 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:29:09,278 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:29:09,278 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:29:09,281 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:29:09,282 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:08" (1/3) ...
[2025-05-07 17:29:09,282 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af4b8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:29:09, skipping insertion in model container
[2025-05-07 17:29:09,282 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:08" (2/3) ...
[2025-05-07 17:29:09,282 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af4b8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:29:09, skipping insertion in model container
[2025-05-07 17:29:09,282 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:09" (3/3) ...
[2025-05-07 17:29:09,284 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:29:09,299 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:29:09,301 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 17:29:09,336 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:29:09,347 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;@19c419fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:29:09,347 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:29:09,350 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 17:29:09,357 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:09,357 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:09,358 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 17:29:09,358 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:09,361 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:09,362 INFO  L85        PathProgramCache]: Analyzing trace with hash -1161480212, now seen corresponding path program 1 times
[2025-05-07 17:29:09,367 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:09,367 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393088779]
[2025-05-07 17:29:09,367 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:09,368 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:09,420 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:09,476 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:09,477 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:09,477 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:09,571 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 17:29:09,572 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:09,572 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393088779]
[2025-05-07 17:29:09,572 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393088779] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:09,572 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:09,574 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-05-07 17:29:09,575 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138907526]
[2025-05-07 17:29:09,576 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:09,579 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-05-07 17:29:09,579 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:09,597 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-05-07 17:29:09,597 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-05-07 17:29:09,599 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 17:29:09,631 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:09,631 INFO  L93              Difference]: Finished difference Result 63 states and 70 transitions.
[2025-05-07 17:29:09,632 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-05-07 17:29:09,633 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 17:29:09,633 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:09,640 INFO  L225             Difference]: With dead ends: 63
[2025-05-07 17:29:09,640 INFO  L226             Difference]: Without dead ends: 60
[2025-05-07 17:29:09,642 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 17:29:09,645 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 17:29:09,645 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 17:29:09,662 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2025-05-07 17:29:09,682 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2025-05-07 17:29:09,683 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 17:29:09,686 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions.
[2025-05-07 17:29:09,687 INFO  L79                 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 51
[2025-05-07 17:29:09,689 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:09,689 INFO  L485      AbstractCegarLoop]: Abstraction has 60 states and 67 transitions.
[2025-05-07 17:29:09,689 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 17:29:09,689 INFO  L278                IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions.
[2025-05-07 17:29:09,691 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:09,692 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:09,692 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 17:29:09,692 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:29:09,692 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:09,693 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:09,693 INFO  L85        PathProgramCache]: Analyzing trace with hash -1260365348, now seen corresponding path program 1 times
[2025-05-07 17:29:09,693 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:09,693 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268616244]
[2025-05-07 17:29:09,693 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:09,693 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:09,733 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:09,781 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:09,781 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:09,781 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:09,979 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 17:29:09,979 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:09,979 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268616244]
[2025-05-07 17:29:09,979 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268616244] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:09,979 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:09,979 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:29:09,979 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70965884]
[2025-05-07 17:29:09,979 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:09,980 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:29:09,980 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:09,981 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:29:09,981 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:29:09,982 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 17:29:10,025 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:10,025 INFO  L93              Difference]: Finished difference Result 65 states and 73 transitions.
[2025-05-07 17:29:10,025 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:29:10,026 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 17:29:10,026 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:10,027 INFO  L225             Difference]: With dead ends: 65
[2025-05-07 17:29:10,027 INFO  L226             Difference]: Without dead ends: 65
[2025-05-07 17:29:10,027 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 17:29:10,028 INFO  L437           NwaCegarLoop]: 66 mSDtfsCounter, 1 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 318 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 17:29:10,028 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 318 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:10,029 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2025-05-07 17:29:10,034 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2025-05-07 17:29:10,034 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 17:29:10,035 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions.
[2025-05-07 17:29:10,035 INFO  L79                 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 51
[2025-05-07 17:29:10,036 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:10,036 INFO  L485      AbstractCegarLoop]: Abstraction has 65 states and 73 transitions.
[2025-05-07 17:29:10,036 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 17:29:10,036 INFO  L278                IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions.
[2025-05-07 17:29:10,037 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:29:10,037 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:10,037 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 17:29:10,037 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:29:10,037 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:10,037 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:10,038 INFO  L85        PathProgramCache]: Analyzing trace with hash -1184718466, now seen corresponding path program 1 times
[2025-05-07 17:29:10,038 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:10,038 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579573466]
[2025-05-07 17:29:10,038 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:10,038 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:10,067 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:29:10,090 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:29:10,090 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:10,090 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:10,330 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 17:29:10,330 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:10,331 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579573466]
[2025-05-07 17:29:10,331 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579573466] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:10,331 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:10,331 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:29:10,331 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694572330]
[2025-05-07 17:29:10,331 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:10,331 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:29:10,331 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:10,332 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:29:10,332 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:29:10,332 INFO  L87              Difference]: Start difference. First operand 65 states and 73 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 17:29:10,400 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:10,400 INFO  L93              Difference]: Finished difference Result 59 states and 67 transitions.
[2025-05-07 17:29:10,401 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:29:10,401 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 17:29:10,401 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:10,402 INFO  L225             Difference]: With dead ends: 59
[2025-05-07 17:29:10,402 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:29:10,402 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 17:29:10,403 INFO  L437           NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 356 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 17:29:10,403 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 356 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:29:10,403 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:29:10,404 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:29:10,404 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 17:29:10,404 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:29:10,404 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51
[2025-05-07 17:29:10,404 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:10,404 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:29:10,404 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 17:29:10,404 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:29:10,404 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:29:10,407 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:29:10,407 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:29:10,410 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:29:10,413 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:29:10,416 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:29:10 BoogieIcfgContainer
[2025-05-07 17:29:10,416 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:29:10,416 INFO  L158              Benchmark]: Toolchain (without parser) took 1677.87ms. Allocated memory is still 234.9MB. Free memory was 145.0MB in the beginning and 81.3MB in the end (delta: 63.7MB). Peak memory consumption was 77.5MB. Max. memory is 33.6GB.
[2025-05-07 17:29:10,417 INFO  L158              Benchmark]: SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 173.3MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:10,417 INFO  L158              Benchmark]: ChcToBoogie took 32.11ms. Allocated memory is still 234.9MB. Free memory was 145.0MB in the beginning and 141.6MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:10,417 INFO  L158              Benchmark]: Boogie Preprocessor took 53.03ms. Allocated memory is still 234.9MB. Free memory was 141.6MB in the beginning and 138.2MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:10,417 INFO  L158              Benchmark]: RCFGBuilder took 451.01ms. Allocated memory is still 234.9MB. Free memory was 138.2MB in the beginning and 172.1MB in the end (delta: -33.9MB). Peak memory consumption was 43.1MB. Max. memory is 33.6GB.
[2025-05-07 17:29:10,418 INFO  L158              Benchmark]: TraceAbstraction took 1137.77ms. Allocated memory is still 234.9MB. Free memory was 171.6MB in the beginning and 81.3MB in the end (delta: 90.3MB). Peak memory consumption was 84.7MB. Max. memory is 33.6GB.
[2025-05-07 17:29:10,419 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.20ms. Allocated memory is still 234.9MB. Free memory is still 173.3MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 32.11ms. Allocated memory is still 234.9MB. Free memory was 145.0MB in the beginning and 141.6MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 53.03ms. Allocated memory is still 234.9MB. Free memory was 141.6MB in the beginning and 138.2MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 451.01ms. Allocated memory is still 234.9MB. Free memory was 138.2MB in the beginning and 172.1MB in the end (delta: -33.9MB). Peak memory consumption was 43.1MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1137.77ms. Allocated memory is still 234.9MB. Free memory was 171.6MB in the beginning and 81.3MB in the end (delta: 90.3MB). Peak memory consumption was 84.7MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 19 procedures, 74 locations, 113 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 744 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 546 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 198 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 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 17:29:10,430 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
