./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/constructor_hierarchy_2.sol_2_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:25,122 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:25,163 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6a0e94-e5a2-44b5-9a75-0a9ccb952efd/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:25,166 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:25,166 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:25,178 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:25,179 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:25,179 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:25,179 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:25,179 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:25,179 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:25,180 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:25,180 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:25,180 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:25,180 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:25,180 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:25,180 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:25,180 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:25,180 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:25,180 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:25,181 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:25,181 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:25,181 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:25,181 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:25,181 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:25,181 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:25,181 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:25,356 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:25,364 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:25,366 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:25,367 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:25,368 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:25,369 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6a0e94-e5a2-44b5-9a75-0a9ccb952efd/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/constructor_hierarchy_2.sol_2_no_adts_000.smt2
[2025-05-07 17:26:25,370 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:25,372 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:25,608 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6a0e94-e5a2-44b5-9a75-0a9ccb952efd/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/constructor_hierarchy_2.sol_2_no_adts_000.smt2
[2025-05-07 17:26:25,612 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:25,613 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:25,613 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:25,613 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:25,613 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:25,615 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,644 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25 Unit
[2025-05-07 17:26:25,644 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:25,645 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:25,645 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:25,645 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:25,657 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,657 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,681 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,682 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,687 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,688 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,690 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,692 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,693 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,708 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:25,709 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:25,709 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:25,709 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:25,710 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (1/1) ...
[2025-05-07 17:26:25,712 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:25,723 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:25,733 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:26:25,735 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:26:25,742 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:25,742 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:25,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:25,743 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_4_0 given in one single declaration
[2025-05-07 17:26:25,743 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_4_0
[2025-05-07 17:26:25,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_4_0
[2025-05-07 17:26:25,743 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_6_A_29_0 given in one single declaration
[2025-05-07 17:26:25,743 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_6_A_29_0
[2025-05-07 17:26:25,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_6_A_29_0
[2025-05-07 17:26:25,743 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_30_A_29_0 given in one single declaration
[2025-05-07 17:26:25,743 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_30_A_29_0
[2025-05-07 17:26:25,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_30_A_29_0
[2025-05-07 17:26:25,743 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_8_constructor_28_29_0 given in one single declaration
[2025-05-07 17:26:25,743 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_8_constructor_28_29_0
[2025-05-07 17:26:25,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_8_constructor_28_29_0
[2025-05-07 17:26:25,743 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_29_constructor_28_29_0 given in one single declaration
[2025-05-07 17:26:25,743 INFO  L130     BoogieDeclarations]: Found specification of procedure block_29_constructor_28_29_0
[2025-05-07 17:26:25,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_29_constructor_28_29_0
[2025-05-07 17:26:25,743 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_27__27_29_0 given in one single declaration
[2025-05-07 17:26:25,743 INFO  L130     BoogieDeclarations]: Found specification of procedure block_27__27_29_0
[2025-05-07 17:26:25,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_27__27_29_0
[2025-05-07 17:26:25,744 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_26_constructor_28_29_0 given in one single declaration
[2025-05-07 17:26:25,744 INFO  L130     BoogieDeclarations]: Found specification of procedure block_26_constructor_28_29_0
[2025-05-07 17:26:25,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_26_constructor_28_29_0
[2025-05-07 17:26:25,744 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_28_return_constructor_28_29_0 given in one single declaration
[2025-05-07 17:26:25,744 INFO  L130     BoogieDeclarations]: Found specification of procedure block_28_return_constructor_28_29_0
[2025-05-07 17:26:25,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_28_return_constructor_28_29_0
[2025-05-07 17:26:25,744 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_32_A_29_0 given in one single declaration
[2025-05-07 17:26:25,744 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_32_A_29_0
[2025-05-07 17:26:25,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_32_A_29_0
[2025-05-07 17:26:25,744 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_31_A_29_0 given in one single declaration
[2025-05-07 17:26:25,744 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_31_A_29_0
[2025-05-07 17:26:25,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_31_A_29_0
[2025-05-07 17:26:25,744 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_39_A_29_0 given in one single declaration
[2025-05-07 17:26:25,744 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_39_A_29_0
[2025-05-07 17:26:25,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_39_A_29_0
[2025-05-07 17:26:25,744 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_36_C_13_0 given in one single declaration
[2025-05-07 17:26:25,744 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_36_C_13_0
[2025-05-07 17:26:25,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_36_C_13_0
[2025-05-07 17:26:25,744 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_7_constructor_12_29_0 given in one single declaration
[2025-05-07 17:26:25,745 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_7_constructor_12_29_0
[2025-05-07 17:26:25,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_7_constructor_12_29_0
[2025-05-07 17:26:25,745 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_35_return_constructor_12_29_0 given in one single declaration
[2025-05-07 17:26:25,745 INFO  L130     BoogieDeclarations]: Found specification of procedure block_35_return_constructor_12_29_0
[2025-05-07 17:26:25,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_35_return_constructor_12_29_0
[2025-05-07 17:26:25,745 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_34__11_29_0 given in one single declaration
[2025-05-07 17:26:25,745 INFO  L130     BoogieDeclarations]: Found specification of procedure block_34__11_29_0
[2025-05-07 17:26:25,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_34__11_29_0
[2025-05-07 17:26:25,745 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_33_constructor_12_29_0 given in one single declaration
[2025-05-07 17:26:25,745 INFO  L130     BoogieDeclarations]: Found specification of procedure block_33_constructor_12_29_0
[2025-05-07 17:26:25,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_33_constructor_12_29_0
[2025-05-07 17:26:25,745 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_38_C_13_0 given in one single declaration
[2025-05-07 17:26:25,745 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_38_C_13_0
[2025-05-07 17:26:25,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_38_C_13_0
[2025-05-07 17:26:25,745 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_37_C_13_0 given in one single declaration
[2025-05-07 17:26:25,745 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_37_C_13_0
[2025-05-07 17:26:25,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_37_C_13_0
[2025-05-07 17:26:25,745 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:25,745 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:25,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:25,858 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:25,861 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:26,023 INFO  L?                        ?]: Removed 158 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:26,023 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:26,032 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:26,032 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:26:26,032 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:26 BoogieIcfgContainer
[2025-05-07 17:26:26,033 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:26,034 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:26,035 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:26,037 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:26,037 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:25" (1/3) ...
[2025-05-07 17:26:26,038 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6746f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:26, skipping insertion in model container
[2025-05-07 17:26:26,038 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:25" (2/3) ...
[2025-05-07 17:26:26,038 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6746f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:26, skipping insertion in model container
[2025-05-07 17:26:26,038 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:26" (3/3) ...
[2025-05-07 17:26:26,039 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:26,049 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:26,051 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 20 procedures, 82 locations, 125 edges, 20 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:26,096 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:26,107 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;@32f72c8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:26,107 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:26,111 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 82 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 38 states have internal predecessors, (38), 28 states have call successors, (29), 19 states have call predecessors, (29), 19 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29)
[2025-05-07 17:26:26,119 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:26:26,119 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:26,120 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]
[2025-05-07 17:26:26,120 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:26,124 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:26,124 INFO  L85        PathProgramCache]: Analyzing trace with hash 1964265290, now seen corresponding path program 1 times
[2025-05-07 17:26:26,129 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:26,130 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6814511]
[2025-05-07 17:26:26,130 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:26,130 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:26,164 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:26:26,215 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:26:26,215 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:26,215 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:26,372 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:26,373 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:26,373 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6814511]
[2025-05-07 17:26:26,373 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6814511] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:26,373 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:26,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:26:26,377 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157842070]
[2025-05-07 17:26:26,377 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:26,380 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:26:26,380 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:26,398 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:26:26,399 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:26,400 INFO  L87              Difference]: Start difference. First operand  has 82 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 38 states have internal predecessors, (38), 28 states have call successors, (29), 19 states have call predecessors, (29), 19 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) Second operand  has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11)
[2025-05-07 17:26:26,477 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:26,478 INFO  L93              Difference]: Finished difference Result 80 states and 93 transitions.
[2025-05-07 17:26:26,479 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:26:26,480 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 41
[2025-05-07 17:26:26,480 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:26,488 INFO  L225             Difference]: With dead ends: 80
[2025-05-07 17:26:26,488 INFO  L226             Difference]: Without dead ends: 78
[2025-05-07 17:26:26,490 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:26:26,493 INFO  L437           NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:26,494 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 435 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:26,507 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2025-05-07 17:26:26,531 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78.
[2025-05-07 17:26:26,533 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 32 states have (on average 1.09375) internal successors, (35), 35 states have internal predecessors, (35), 26 states have call successors, (27), 19 states have call predecessors, (27), 19 states have return successors, (27), 23 states have call predecessors, (27), 26 states have call successors, (27)
[2025-05-07 17:26:26,536 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions.
[2025-05-07 17:26:26,536 INFO  L79                 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 41
[2025-05-07 17:26:26,537 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:26,537 INFO  L485      AbstractCegarLoop]: Abstraction has 78 states and 89 transitions.
[2025-05-07 17:26:26,537 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11)
[2025-05-07 17:26:26,537 INFO  L278                IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions.
[2025-05-07 17:26:26,539 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:26:26,539 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:26,539 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]
[2025-05-07 17:26:26,539 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:26,539 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:26,540 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:26,540 INFO  L85        PathProgramCache]: Analyzing trace with hash -1254967090, now seen corresponding path program 1 times
[2025-05-07 17:26:26,540 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:26,540 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679013864]
[2025-05-07 17:26:26,540 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:26,540 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:26,567 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:26:26,577 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:26:26,577 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:26,577 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:26,679 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:26,679 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:26,679 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679013864]
[2025-05-07 17:26:26,679 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679013864] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:26,680 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:26,680 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:26,680 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518191103]
[2025-05-07 17:26:26,680 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:26,681 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:26,681 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:26,681 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:26,681 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:26,681 INFO  L87              Difference]: Start difference. First operand 78 states and 89 transitions. Second operand  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11)
[2025-05-07 17:26:26,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:26,719 INFO  L93              Difference]: Finished difference Result 79 states and 88 transitions.
[2025-05-07 17:26:26,720 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:26,720 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 41
[2025-05-07 17:26:26,720 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:26,722 INFO  L225             Difference]: With dead ends: 79
[2025-05-07 17:26:26,722 INFO  L226             Difference]: Without dead ends: 78
[2025-05-07 17:26:26,722 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:26,723 INFO  L437           NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:26,724 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 236 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:26,725 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2025-05-07 17:26:26,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76.
[2025-05-07 17:26:26,732 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 32 states have (on average 1.0625) internal successors, (34), 34 states have internal predecessors, (34), 24 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (25), 22 states have call predecessors, (25), 24 states have call successors, (25)
[2025-05-07 17:26:26,733 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions.
[2025-05-07 17:26:26,733 INFO  L79                 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 41
[2025-05-07 17:26:26,733 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:26,734 INFO  L485      AbstractCegarLoop]: Abstraction has 76 states and 84 transitions.
[2025-05-07 17:26:26,734 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11)
[2025-05-07 17:26:26,734 INFO  L278                IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions.
[2025-05-07 17:26:26,735 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:26:26,736 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:26,736 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:26,736 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:26,736 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:26,737 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:26,737 INFO  L85        PathProgramCache]: Analyzing trace with hash -1489587782, now seen corresponding path program 1 times
[2025-05-07 17:26:26,737 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:26,737 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339648838]
[2025-05-07 17:26:26,737 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:26,737 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:26,773 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:26:26,777 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:26:26,777 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:26,777 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:26,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:26,841 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:26,841 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339648838]
[2025-05-07 17:26:26,841 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339648838] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:26,841 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:26,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:26,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333531184]
[2025-05-07 17:26:26,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:26,841 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:26,841 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:26,842 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:26,842 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:26,842 INFO  L87              Difference]: Start difference. First operand 76 states and 84 transitions. Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:26:26,867 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:26,867 INFO  L93              Difference]: Finished difference Result 80 states and 88 transitions.
[2025-05-07 17:26:26,867 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:26,868 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 66
[2025-05-07 17:26:26,868 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:26,869 INFO  L225             Difference]: With dead ends: 80
[2025-05-07 17:26:26,869 INFO  L226             Difference]: Without dead ends: 80
[2025-05-07 17:26:26,869 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:26,870 INFO  L437           NwaCegarLoop]: 84 mSDtfsCounter, 1 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:26,870 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 239 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:26,871 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2025-05-07 17:26:26,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78.
[2025-05-07 17:26:26,877 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 35 states have internal predecessors, (35), 24 states have call successors, (25), 19 states have call predecessors, (25), 20 states have return successors, (26), 23 states have call predecessors, (26), 24 states have call successors, (26)
[2025-05-07 17:26:26,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions.
[2025-05-07 17:26:26,878 INFO  L79                 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 66
[2025-05-07 17:26:26,879 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:26,879 INFO  L485      AbstractCegarLoop]: Abstraction has 78 states and 86 transitions.
[2025-05-07 17:26:26,879 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:26:26,879 INFO  L278                IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions.
[2025-05-07 17:26:26,881 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:26:26,881 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:26,881 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:26,881 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:26,881 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:26,882 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:26,882 INFO  L85        PathProgramCache]: Analyzing trace with hash -1058946642, now seen corresponding path program 1 times
[2025-05-07 17:26:26,882 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:26,882 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714028604]
[2025-05-07 17:26:26,882 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:26,882 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:26,908 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:26:26,931 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:26:26,931 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:26,931 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:27,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:27,589 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:27,589 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714028604]
[2025-05-07 17:26:27,589 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714028604] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:27,589 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:27,589 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2025-05-07 17:26:27,589 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060890176]
[2025-05-07 17:26:27,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:27,590 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2025-05-07 17:26:27,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:27,590 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2025-05-07 17:26:27,591 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380
[2025-05-07 17:26:27,591 INFO  L87              Difference]: Start difference. First operand 78 states and 86 transitions. Second operand  has 20 states, 14 states have (on average 2.142857142857143) internal successors, (30), 17 states have internal predecessors, (30), 9 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (18), 14 states have call predecessors, (18), 9 states have call successors, (18)
[2025-05-07 17:26:27,932 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:27,932 INFO  L93              Difference]: Finished difference Result 88 states and 100 transitions.
[2025-05-07 17:26:27,932 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2025-05-07 17:26:27,932 INFO  L79                 Accepts]: Start accepts. Automaton has  has 20 states, 14 states have (on average 2.142857142857143) internal successors, (30), 17 states have internal predecessors, (30), 9 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (18), 14 states have call predecessors, (18), 9 states have call successors, (18) Word has length 66
[2025-05-07 17:26:27,933 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:27,933 INFO  L225             Difference]: With dead ends: 88
[2025-05-07 17:26:27,934 INFO  L226             Difference]: Without dead ends: 74
[2025-05-07 17:26:27,934 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506
[2025-05-07 17:26:27,934 INFO  L437           NwaCegarLoop]: 69 mSDtfsCounter, 5 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:27,934 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1189 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-05-07 17:26:27,935 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2025-05-07 17:26:27,938 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74.
[2025-05-07 17:26:27,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 31 states have (on average 1.064516129032258) internal successors, (33), 33 states have internal predecessors, (33), 23 states have call successors, (23), 18 states have call predecessors, (23), 19 states have return successors, (24), 22 states have call predecessors, (24), 23 states have call successors, (24)
[2025-05-07 17:26:27,938 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions.
[2025-05-07 17:26:27,938 INFO  L79                 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 66
[2025-05-07 17:26:27,939 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:27,939 INFO  L485      AbstractCegarLoop]: Abstraction has 74 states and 80 transitions.
[2025-05-07 17:26:27,939 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 14 states have (on average 2.142857142857143) internal successors, (30), 17 states have internal predecessors, (30), 9 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (18), 14 states have call predecessors, (18), 9 states have call successors, (18)
[2025-05-07 17:26:27,939 INFO  L278                IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions.
[2025-05-07 17:26:27,940 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:26:27,940 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:27,940 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:27,940 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:26:27,940 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:27,940 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:27,940 INFO  L85        PathProgramCache]: Analyzing trace with hash 212285597, now seen corresponding path program 1 times
[2025-05-07 17:26:27,940 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:27,940 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658650865]
[2025-05-07 17:26:27,940 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:27,940 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:27,964 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:26:27,967 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:26:27,967 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:27,967 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:28,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:28,010 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:28,010 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658650865]
[2025-05-07 17:26:28,010 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658650865] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:28,010 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:28,011 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:28,011 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137294490]
[2025-05-07 17:26:28,011 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:28,011 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:28,011 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:28,011 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:28,011 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:28,011 INFO  L87              Difference]: Start difference. First operand 74 states and 80 transitions. Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:26:28,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:28,017 INFO  L93              Difference]: Finished difference Result 76 states and 81 transitions.
[2025-05-07 17:26:28,017 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:28,018 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 66
[2025-05-07 17:26:28,018 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:28,018 INFO  L225             Difference]: With dead ends: 76
[2025-05-07 17:26:28,018 INFO  L226             Difference]: Without dead ends: 67
[2025-05-07 17:26:28,018 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:28,019 INFO  L437           NwaCegarLoop]: 78 mSDtfsCounter, 1 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:28,019 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 225 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:28,020 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67 states.
[2025-05-07 17:26:28,022 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67.
[2025-05-07 17:26:28,022 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 30 states have (on average 1.0) internal successors, (30), 30 states have internal predecessors, (30), 18 states have call successors, (18), 18 states have call predecessors, (18), 18 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2025-05-07 17:26:28,022 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 66 transitions.
[2025-05-07 17:26:28,022 INFO  L79                 Accepts]: Start accepts. Automaton has 67 states and 66 transitions. Word has length 66
[2025-05-07 17:26:28,022 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:28,022 INFO  L485      AbstractCegarLoop]: Abstraction has 67 states and 66 transitions.
[2025-05-07 17:26:28,023 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:26:28,023 INFO  L278                IsEmpty]: Start isEmpty. Operand 67 states and 66 transitions.
[2025-05-07 17:26:28,023 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:26:28,023 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:28,023 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:28,023 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:26:28,023 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:28,024 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:28,024 INFO  L85        PathProgramCache]: Analyzing trace with hash 1006585014, now seen corresponding path program 1 times
[2025-05-07 17:26:28,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:28,024 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953461929]
[2025-05-07 17:26:28,024 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:28,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:28,047 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:26:28,058 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:26:28,058 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:28,058 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:28,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:26:28,143 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:28,143 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953461929]
[2025-05-07 17:26:28,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953461929] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:28,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:28,143 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:26:28,143 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675160896]
[2025-05-07 17:26:28,143 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:28,144 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:26:28,144 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:28,144 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:26:28,144 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:26:28,145 INFO  L87              Difference]: Start difference. First operand 67 states and 66 transitions. Second operand  has 7 states, 5 states have (on average 6.0) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:26:28,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:28,176 INFO  L93              Difference]: Finished difference Result 28 states and 27 transitions.
[2025-05-07 17:26:28,176 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:26:28,176 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 5 states have (on average 6.0) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 66
[2025-05-07 17:26:28,176 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:28,177 INFO  L225             Difference]: With dead ends: 28
[2025-05-07 17:26:28,177 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:28,177 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:26:28,178 INFO  L437           NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:28,178 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 135 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:28,178 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:28,178 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:28,178 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:26:28,178 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:28,179 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66
[2025-05-07 17:26:28,179 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:28,179 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:28,179 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 5 states have (on average 6.0) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (18), 1 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:26:28,179 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:28,179 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:28,181 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:28,181 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:26:28,184 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2025-05-07 17:26:28,185 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:28,188 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:28 BoogieIcfgContainer
[2025-05-07 17:26:28,188 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:28,189 INFO  L158              Benchmark]: Toolchain (without parser) took 2576.24ms. Allocated memory is still 234.9MB. Free memory was 156.4MB in the beginning and 183.5MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:28,189 INFO  L158              Benchmark]: SmtParser took 0.23ms. Allocated memory is still 234.9MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:28,189 INFO  L158              Benchmark]: ChcToBoogie took 31.27ms. Allocated memory is still 234.9MB. Free memory was 156.4MB in the beginning and 154.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:28,189 INFO  L158              Benchmark]: Boogie Preprocessor took 62.89ms. Allocated memory is still 234.9MB. Free memory was 154.2MB in the beginning and 151.4MB in the end (delta: 2.9MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:28,189 INFO  L158              Benchmark]: RCFGBuilder took 324.06ms. Allocated memory is still 234.9MB. Free memory was 151.4MB in the beginning and 123.6MB in the end (delta: 27.8MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:26:28,190 INFO  L158              Benchmark]: TraceAbstraction took 2153.71ms. Allocated memory is still 234.9MB. Free memory was 122.9MB in the beginning and 183.5MB in the end (delta: -60.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:28,190 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.23ms. Allocated memory is still 234.9MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 31.27ms. Allocated memory is still 234.9MB. Free memory was 156.4MB in the beginning and 154.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 62.89ms. Allocated memory is still 234.9MB. Free memory was 154.2MB in the beginning and 151.4MB in the end (delta: 2.9MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 324.06ms. Allocated memory is still 234.9MB. Free memory was 151.4MB in the beginning and 123.6MB in the end (delta: 27.8MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 2153.71ms. Allocated memory is still 234.9MB. Free memory was 122.9MB in the beginning and 183.5MB in the end (delta: -60.6MB). There was no memory consumed. 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 20 procedures, 82 locations, 125 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 2459 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2030 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 383 IncrementalHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 429 mSDtfsCounter, 383 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:26:28,201 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
