./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/external_calls/call_constructor_1.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:26:43,949 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:26:43,986 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce35f49b-3206-4aea-9bdf-f6175fd634be/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:26:43,989 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:26:43,990 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:26:44,003 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:26:44,003 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:26:44,003 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:26:44,004 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:26:44,004 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:26:44,004 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:26:44,004 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:26:44,004 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:26:44,004 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:26:44,004 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:26:44,005 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:26:44,005 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:26:44,005 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:26:44,005 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:44,005 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:26:44,005 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:26:44,005 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:26:44,005 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:26:44,005 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:26:44,006 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:26:44,006 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:26:44,006 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:26:44,191 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:26:44,197 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:26:44,198 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:26:44,199 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:26:44,199 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:26:44,200 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce35f49b-3206-4aea-9bdf-f6175fd634be/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/external_calls/call_constructor_1.sol_0_no_adts_000.smt2
[2025-05-07 17:26:44,201 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:26:44,203 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:26:44,352 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce35f49b-3206-4aea-9bdf-f6175fd634be/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/external_calls/call_constructor_1.sol_0_no_adts_000.smt2
[2025-05-07 17:26:44,354 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:26:44,355 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:26:44,356 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:26:44,356 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:26:44,356 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:26:44,358 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,378 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44 Unit
[2025-05-07 17:26:44,378 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:26:44,379 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:26:44,379 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:26:44,379 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:26:44,390 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,390 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,408 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,409 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,411 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,412 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,413 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,414 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,414 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,422 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:26:44,422 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:26:44,422 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:26:44,422 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:26:44,423 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (1/1) ...
[2025-05-07 17:26:44,425 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:26:44,433 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:26:44,442 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 17:26:44,444 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 17:26:44,452 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:26:44,452 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:26:44,453 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:26:44,453 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_2_0 given in one single declaration
[2025-05-07 17:26:44,453 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_2_0
[2025-05-07 17:26:44,453 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_2_0
[2025-05-07 17:26:44,453 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_21_0 given in one single declaration
[2025-05-07 17:26:44,453 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_21_0
[2025-05-07 17:26:44,453 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_21_0
[2025-05-07 17:26:44,453 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_8_C_21_0 given in one single declaration
[2025-05-07 17:26:44,453 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_8_C_21_0
[2025-05-07 17:26:44,453 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_8_C_21_0
[2025-05-07 17:26:44,453 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_10_C_21_0 given in one single declaration
[2025-05-07 17:26:44,454 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_10_C_21_0
[2025-05-07 17:26:44,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_10_C_21_0
[2025-05-07 17:26:44,454 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_9_C_21_0 given in one single declaration
[2025-05-07 17:26:44,454 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_9_C_21_0
[2025-05-07 17:26:44,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_9_C_21_0
[2025-05-07 17:26:44,454 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_constructor_20_21_0 given in one single declaration
[2025-05-07 17:26:44,454 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_constructor_20_21_0
[2025-05-07 17:26:44,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_constructor_20_21_0
[2025-05-07 17:26:44,454 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_constructor_20_21_0 given in one single declaration
[2025-05-07 17:26:44,454 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_constructor_20_21_0
[2025-05-07 17:26:44,454 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_constructor_20_21_0
[2025-05-07 17:26:44,454 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5__19_21_0 given in one single declaration
[2025-05-07 17:26:44,455 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5__19_21_0
[2025-05-07 17:26:44,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5__19_21_0
[2025-05-07 17:26:44,455 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_4_constructor_20_21_0 given in one single declaration
[2025-05-07 17:26:44,455 INFO  L130     BoogieDeclarations]: Found specification of procedure block_4_constructor_20_21_0
[2025-05-07 17:26:44,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_4_constructor_20_21_0
[2025-05-07 17:26:44,455 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_return_constructor_20_21_0 given in one single declaration
[2025-05-07 17:26:44,455 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_return_constructor_20_21_0
[2025-05-07 17:26:44,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_return_constructor_20_21_0
[2025-05-07 17:26:44,455 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_11_C_21_0 given in one single declaration
[2025-05-07 17:26:44,455 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_11_C_21_0
[2025-05-07 17:26:44,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_11_C_21_0
[2025-05-07 17:26:44,455 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:26:44,455 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:26:44,455 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:26:44,547 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:26:44,549 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:26:44,701 INFO  L?                        ?]: Removed 95 outVars from TransFormulas that were not future-live.
[2025-05-07 17:26:44,701 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:26:44,710 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:26:44,711 INFO  L312             CfgBuilder]: Removed 5 assume(true) statements.
[2025-05-07 17:26:44,711 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:44 BoogieIcfgContainer
[2025-05-07 17:26:44,711 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:26:44,713 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:26:44,713 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:26:44,716 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:26:44,716 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:26:44" (1/3) ...
[2025-05-07 17:26:44,716 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3daf03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:26:44, skipping insertion in model container
[2025-05-07 17:26:44,717 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:26:44" (2/3) ...
[2025-05-07 17:26:44,717 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3daf03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:26:44, skipping insertion in model container
[2025-05-07 17:26:44,717 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:26:44" (3/3) ...
[2025-05-07 17:26:44,718 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:26:44,729 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:26:44,731 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 13 procedures, 52 locations, 76 edges, 13 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:26:44,765 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:26:44,777 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;@4ee08b89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:26:44,777 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:26:44,780 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 52 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 25 states have internal predecessors, (25), 16 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17)
[2025-05-07 17:26:44,787 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:26:44,787 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:44,788 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 17:26:44,788 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:44,792 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:44,792 INFO  L85        PathProgramCache]: Analyzing trace with hash 655872566, now seen corresponding path program 1 times
[2025-05-07 17:26:44,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:44,798 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730554133]
[2025-05-07 17:26:44,798 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:44,798 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:44,844 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:26:44,933 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:26:44,933 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:44,934 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:45,153 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 17:26:45,153 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:45,153 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730554133]
[2025-05-07 17:26:45,154 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730554133] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:45,154 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:45,155 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:26:45,156 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769040515]
[2025-05-07 17:26:45,157 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:45,160 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:26:45,160 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:45,189 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:26:45,190 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:26:45,191 INFO  L87              Difference]: Start difference. First operand  has 52 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 25 states have internal predecessors, (25), 16 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) Second operand  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11)
[2025-05-07 17:26:45,313 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:45,314 INFO  L93              Difference]: Finished difference Result 54 states and 62 transitions.
[2025-05-07 17:26:45,315 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:26:45,316 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 41
[2025-05-07 17:26:45,316 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:45,321 INFO  L225             Difference]: With dead ends: 54
[2025-05-07 17:26:45,321 INFO  L226             Difference]: Without dead ends: 54
[2025-05-07 17:26:45,322 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 17:26:45,325 INFO  L437           NwaCegarLoop]: 52 mSDtfsCounter, 2 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:45,325 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 292 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:45,336 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2025-05-07 17:26:45,349 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52.
[2025-05-07 17:26:45,350 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 24 states have internal predecessors, (24), 16 states have call successors, (17), 12 states have call predecessors, (17), 13 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18)
[2025-05-07 17:26:45,352 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions.
[2025-05-07 17:26:45,353 INFO  L79                 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 41
[2025-05-07 17:26:45,354 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:45,354 INFO  L485      AbstractCegarLoop]: Abstraction has 52 states and 59 transitions.
[2025-05-07 17:26:45,354 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11)
[2025-05-07 17:26:45,354 INFO  L278                IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions.
[2025-05-07 17:26:45,355 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:26:45,355 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:45,355 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 17:26:45,356 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:26:45,356 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:45,356 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:45,356 INFO  L85        PathProgramCache]: Analyzing trace with hash -603010084, now seen corresponding path program 1 times
[2025-05-07 17:26:45,356 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:45,356 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348476274]
[2025-05-07 17:26:45,356 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:45,356 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:45,378 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:26:45,384 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:26:45,384 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:45,384 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:45,447 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 17:26:45,447 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:45,447 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348476274]
[2025-05-07 17:26:45,447 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348476274] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:45,447 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:45,447 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:45,447 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13324388]
[2025-05-07 17:26:45,447 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:45,449 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:45,449 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:45,449 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:45,449 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:45,450 INFO  L87              Difference]: Start difference. First operand 52 states and 59 transitions. Second operand  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:26:45,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:45,459 INFO  L93              Difference]: Finished difference Result 54 states and 60 transitions.
[2025-05-07 17:26:45,459 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:45,459 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), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 41
[2025-05-07 17:26:45,459 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:45,460 INFO  L225             Difference]: With dead ends: 54
[2025-05-07 17:26:45,460 INFO  L226             Difference]: Without dead ends: 50
[2025-05-07 17:26:45,460 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 17:26:45,461 INFO  L437           NwaCegarLoop]: 57 mSDtfsCounter, 1 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 163 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 17:26:45,461 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 163 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:45,461 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2025-05-07 17:26:45,465 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2025-05-07 17:26:45,465 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 14 states have call successors, (15), 12 states have call predecessors, (15), 13 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16)
[2025-05-07 17:26:45,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions.
[2025-05-07 17:26:45,465 INFO  L79                 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 41
[2025-05-07 17:26:45,466 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:45,466 INFO  L485      AbstractCegarLoop]: Abstraction has 50 states and 54 transitions.
[2025-05-07 17:26:45,466 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), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:26:45,466 INFO  L278                IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions.
[2025-05-07 17:26:45,466 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:26:45,467 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:45,467 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 17:26:45,467 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:26:45,467 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:45,467 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:45,467 INFO  L85        PathProgramCache]: Analyzing trace with hash 80607584, now seen corresponding path program 1 times
[2025-05-07 17:26:45,467 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:45,467 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736487308]
[2025-05-07 17:26:45,467 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:45,467 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:45,487 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:26:45,500 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:26:45,501 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:45,501 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:45,706 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 17:26:45,706 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:45,706 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736487308]
[2025-05-07 17:26:45,706 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736487308] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:45,706 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:45,707 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2025-05-07 17:26:45,707 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611216140]
[2025-05-07 17:26:45,707 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:45,707 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2025-05-07 17:26:45,707 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:45,708 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2025-05-07 17:26:45,708 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2025-05-07 17:26:45,708 INFO  L87              Difference]: Start difference. First operand 50 states and 54 transitions. Second operand  has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (11), 1 states have call predecessors, (11), 9 states have return successors, (11), 8 states have call predecessors, (11), 5 states have call successors, (11)
[2025-05-07 17:26:45,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:45,855 INFO  L93              Difference]: Finished difference Result 53 states and 57 transitions.
[2025-05-07 17:26:45,856 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-05-07 17:26:45,856 INFO  L79                 Accepts]: Start accepts. Automaton has  has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (11), 1 states have call predecessors, (11), 9 states have return successors, (11), 8 states have call predecessors, (11), 5 states have call successors, (11) Word has length 41
[2025-05-07 17:26:45,857 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:45,857 INFO  L225             Difference]: With dead ends: 53
[2025-05-07 17:26:45,857 INFO  L226             Difference]: Without dead ends: 42
[2025-05-07 17:26:45,858 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182
[2025-05-07 17:26:45,858 INFO  L437           NwaCegarLoop]: 46 mSDtfsCounter, 3 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:26:45,858 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:26:45,859 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2025-05-07 17:26:45,861 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2025-05-07 17:26:45,861 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2025-05-07 17:26:45,861 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions.
[2025-05-07 17:26:45,862 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 41
[2025-05-07 17:26:45,862 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:45,862 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 41 transitions.
[2025-05-07 17:26:45,862 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (11), 1 states have call predecessors, (11), 9 states have return successors, (11), 8 states have call predecessors, (11), 5 states have call successors, (11)
[2025-05-07 17:26:45,862 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions.
[2025-05-07 17:26:45,862 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:26:45,862 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:26:45,863 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 17:26:45,863 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:26:45,863 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:26:45,863 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:26:45,863 INFO  L85        PathProgramCache]: Analyzing trace with hash 917327546, now seen corresponding path program 1 times
[2025-05-07 17:26:45,863 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:26:45,863 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329535617]
[2025-05-07 17:26:45,864 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:26:45,864 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:26:45,884 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:26:45,894 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:26:45,894 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:26:45,894 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:26:45,945 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 17:26:45,945 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:26:45,945 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329535617]
[2025-05-07 17:26:45,945 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329535617] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:26:45,945 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:26:45,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:26:45,946 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707087049]
[2025-05-07 17:26:45,946 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:26:45,946 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:26:45,946 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:26:45,946 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:26:45,947 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:26:45,947 INFO  L87              Difference]: Start difference. First operand 42 states and 41 transitions. Second operand  has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:26:45,953 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:26:45,954 INFO  L93              Difference]: Finished difference Result 34 states and 33 transitions.
[2025-05-07 17:26:45,954 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:26:45,954 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), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 41
[2025-05-07 17:26:45,954 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:26:45,954 INFO  L225             Difference]: With dead ends: 34
[2025-05-07 17:26:45,954 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:26:45,955 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 17:26:45,955 INFO  L437           NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 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 17:26:45,956 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:26:45,956 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:26:45,956 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:26:45,957 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 17:26:45,957 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:26:45,957 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41
[2025-05-07 17:26:45,957 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:26:45,957 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:26:45,957 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), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11)
[2025-05-07 17:26:45,957 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:26:45,957 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:26:45,959 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:26:45,960 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:26:45,963 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2025-05-07 17:26:45,965 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:26:45,967 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:26:45 BoogieIcfgContainer
[2025-05-07 17:26:45,967 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:26:45,968 INFO  L158              Benchmark]: Toolchain (without parser) took 1612.73ms. Allocated memory is still 234.9MB. Free memory was 158.2MB in the beginning and 188.1MB in the end (delta: -29.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:45,968 INFO  L158              Benchmark]: SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 171.7MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:45,969 INFO  L158              Benchmark]: ChcToBoogie took 22.89ms. Allocated memory is still 234.9MB. Free memory was 158.1MB in the beginning and 156.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:45,969 INFO  L158              Benchmark]: Boogie Preprocessor took 42.53ms. Allocated memory is still 234.9MB. Free memory was 156.4MB in the beginning and 153.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:45,969 INFO  L158              Benchmark]: RCFGBuilder took 288.97ms. Allocated memory is still 234.9MB. Free memory was 153.7MB in the beginning and 134.0MB in the end (delta: 19.7MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
[2025-05-07 17:26:45,969 INFO  L158              Benchmark]: TraceAbstraction took 1254.44ms. Allocated memory is still 234.9MB. Free memory was 133.5MB in the beginning and 188.1MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:26:45,970 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.21ms. Allocated memory is still 234.9MB. Free memory is still 171.7MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 22.89ms. Allocated memory is still 234.9MB. Free memory was 158.1MB in the beginning and 156.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 42.53ms. Allocated memory is still 234.9MB. Free memory was 156.4MB in the beginning and 153.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 288.97ms. Allocated memory is still 234.9MB. Free memory was 153.7MB in the beginning and 134.0MB in the end (delta: 19.7MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1254.44ms. Allocated memory is still 234.9MB. Free memory was 133.5MB in the beginning and 188.1MB in the end (delta: -54.6MB). 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 13 procedures, 52 locations, 76 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 1026 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 838 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 149 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 188 mSDtfsCounter, 149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:26:45,982 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
