./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/external_calls/call_constructor_2.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:28:35,369 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:28:35,408 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531d4c51-9e5d-4af8-aa7c-70c70b8d1161/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:28:35,411 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:28:35,411 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:28:35,424 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:28:35,425 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:28:35,425 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:28:35,425 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:28:35,425 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:28:35,425 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:28:35,425 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:28:35,426 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:28:35,426 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:28:35,426 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:28:35,426 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:28:35,426 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:28:35,426 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:28:35,426 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:35,426 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:28:35,426 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:28:35,426 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:28:35,427 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:28:35,427 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:28:35,427 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:28:35,427 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:28:35,428 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:28:35,610 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:28:35,615 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:28:35,617 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:28:35,618 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:28:35,618 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:28:35,619 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531d4c51-9e5d-4af8-aa7c-70c70b8d1161/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/external_calls/call_constructor_2.sol_0_no_adts_000.smt2
[2025-05-07 17:28:35,620 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:28:35,622 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:28:35,772 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531d4c51-9e5d-4af8-aa7c-70c70b8d1161/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/external_calls/call_constructor_2.sol_0_no_adts_000.smt2
[2025-05-07 17:28:35,774 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:28:35,775 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:28:35,776 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:28:35,776 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:28:35,776 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:28:35,778 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,799 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35 Unit
[2025-05-07 17:28:35,799 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:28:35,800 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:28:35,800 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:28:35,800 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:28:35,811 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,811 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,829 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,829 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,831 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,832 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,834 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,835 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,835 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,844 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:28:35,844 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:28:35,844 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:28:35,844 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:28:35,845 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (1/1) ...
[2025-05-07 17:28:35,847 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:35,855 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:28:35,864 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:28:35,866 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:28:35,874 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:28:35,874 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:28:35,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:28:35,874 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_2_0 given in one single declaration
[2025-05-07 17:28:35,874 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_2_0
[2025-05-07 17:28:35,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_2_0
[2025-05-07 17:28:35,874 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_31_0 given in one single declaration
[2025-05-07 17:28:35,874 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_31_0
[2025-05-07 17:28:35,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_31_0
[2025-05-07 17:28:35,874 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_14_C_31_0 given in one single declaration
[2025-05-07 17:28:35,874 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_14_C_31_0
[2025-05-07 17:28:35,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_14_C_31_0
[2025-05-07 17:28:35,874 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_constructor_30_31_0 given in one single declaration
[2025-05-07 17:28:35,874 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_constructor_30_31_0
[2025-05-07 17:28:35,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_constructor_30_31_0
[2025-05-07 17:28:35,874 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_return_constructor_30_31_0 given in one single declaration
[2025-05-07 17:28:35,875 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_return_constructor_30_31_0
[2025-05-07 17:28:35,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_return_constructor_30_31_0
[2025-05-07 17:28:35,875 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11__29_31_0 given in one single declaration
[2025-05-07 17:28:35,875 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11__29_31_0
[2025-05-07 17:28:35,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11__29_31_0
[2025-05-07 17:28:35,875 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_constructor_30_31_0 given in one single declaration
[2025-05-07 17:28:35,875 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_constructor_30_31_0
[2025-05-07 17:28:35,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_constructor_30_31_0
[2025-05-07 17:28:35,875 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_constructor_30_31_0 given in one single declaration
[2025-05-07 17:28:35,875 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_constructor_30_31_0
[2025-05-07 17:28:35,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_constructor_30_31_0
[2025-05-07 17:28:35,875 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_16_C_31_0 given in one single declaration
[2025-05-07 17:28:35,875 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_16_C_31_0
[2025-05-07 17:28:35,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_16_C_31_0
[2025-05-07 17:28:35,875 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_15_C_31_0 given in one single declaration
[2025-05-07 17:28:35,875 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_15_C_31_0
[2025-05-07 17:28:35,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_15_C_31_0
[2025-05-07 17:28:35,875 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_17_C_31_0 given in one single declaration
[2025-05-07 17:28:35,875 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_17_C_31_0
[2025-05-07 17:28:35,875 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_17_C_31_0
[2025-05-07 17:28:35,876 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:28:35,876 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:28:35,876 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:28:35,964 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:28:35,966 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:28:36,096 INFO  L?                        ?]: Removed 95 outVars from TransFormulas that were not future-live.
[2025-05-07 17:28:36,096 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:28:36,104 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:28:36,105 INFO  L312             CfgBuilder]: Removed 5 assume(true) statements.
[2025-05-07 17:28:36,105 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:36 BoogieIcfgContainer
[2025-05-07 17:28:36,105 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:28:36,107 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:28:36,107 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:28:36,110 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:28:36,110 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:35" (1/3) ...
[2025-05-07 17:28:36,110 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cd6f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:28:36, skipping insertion in model container
[2025-05-07 17:28:36,110 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:35" (2/3) ...
[2025-05-07 17:28:36,111 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cd6f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:28:36, skipping insertion in model container
[2025-05-07 17:28:36,111 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:36" (3/3) ...
[2025-05-07 17:28:36,112 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:28:36,123 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:28:36,125 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 17:28:36,154 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:28:36,162 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;@3fe94bfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:28:36,162 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:28:36,165 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 17:28:36,171 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:36,171 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:36,171 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 17:28:36,172 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:36,176 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:36,176 INFO  L85        PathProgramCache]: Analyzing trace with hash -1870202148, now seen corresponding path program 1 times
[2025-05-07 17:28:36,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:36,182 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801013660]
[2025-05-07 17:28:36,182 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:36,182 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:36,223 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:36,245 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:36,245 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:36,245 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:36,410 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:36,410 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:36,410 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801013660]
[2025-05-07 17:28:36,411 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801013660] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:36,411 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:36,412 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:36,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772087848]
[2025-05-07 17:28:36,414 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:36,416 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:36,416 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:36,433 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:36,433 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:36,435 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 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 17:28:36,458 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:36,458 INFO  L93              Difference]: Finished difference Result 52 states and 58 transitions.
[2025-05-07 17:28:36,460 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:36,460 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 17:28:36,461 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:36,465 INFO  L225             Difference]: With dead ends: 52
[2025-05-07 17:28:36,465 INFO  L226             Difference]: Without dead ends: 48
[2025-05-07 17:28:36,466 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:36,468 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 17:28:36,477 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 17:28:36,486 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2025-05-07 17:28:36,502 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2025-05-07 17:28:36,503 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 48 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 22 states have internal predecessors, (22), 14 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (15), 13 states have call predecessors, (15), 14 states have call successors, (15)
[2025-05-07 17:28:36,506 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions.
[2025-05-07 17:28:36,507 INFO  L79                 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 41
[2025-05-07 17:28:36,507 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:36,508 INFO  L485      AbstractCegarLoop]: Abstraction has 48 states and 52 transitions.
[2025-05-07 17:28:36,508 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 17:28:36,508 INFO  L278                IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions.
[2025-05-07 17:28:36,512 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:36,513 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:36,513 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 17:28:36,513 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:28:36,513 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:36,514 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:36,514 INFO  L85        PathProgramCache]: Analyzing trace with hash -1475345964, now seen corresponding path program 1 times
[2025-05-07 17:28:36,514 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:36,515 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541591302]
[2025-05-07 17:28:36,515 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:36,515 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:36,545 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:36,564 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:36,564 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:36,564 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:36,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:36,649 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:36,649 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541591302]
[2025-05-07 17:28:36,649 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541591302] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:36,649 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:36,649 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:36,649 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343692865]
[2025-05-07 17:28:36,649 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:36,650 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:36,650 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:36,651 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:36,651 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:36,651 INFO  L87              Difference]: Start difference. First operand 48 states and 52 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 17:28:36,669 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:36,669 INFO  L93              Difference]: Finished difference Result 50 states and 53 transitions.
[2025-05-07 17:28:36,670 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:36,670 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 17:28:36,670 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:36,671 INFO  L225             Difference]: With dead ends: 50
[2025-05-07 17:28:36,671 INFO  L226             Difference]: Without dead ends: 46
[2025-05-07 17:28:36,671 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:36,671 INFO  L437           NwaCegarLoop]: 51 mSDtfsCounter, 1 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:36,672 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 143 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:36,672 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2025-05-07 17:28:36,675 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46.
[2025-05-07 17:28:36,675 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 12 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13)
[2025-05-07 17:28:36,675 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions.
[2025-05-07 17:28:36,676 INFO  L79                 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 41
[2025-05-07 17:28:36,676 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:36,676 INFO  L485      AbstractCegarLoop]: Abstraction has 46 states and 47 transitions.
[2025-05-07 17:28:36,676 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 17:28:36,676 INFO  L278                IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions.
[2025-05-07 17:28:36,677 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:36,677 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:36,677 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 17:28:36,677 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:36,677 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:36,677 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:36,677 INFO  L85        PathProgramCache]: Analyzing trace with hash 1741147480, now seen corresponding path program 1 times
[2025-05-07 17:28:36,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:36,677 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092395146]
[2025-05-07 17:28:36,677 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:36,678 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:36,698 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:36,715 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:36,715 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:36,715 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:36,806 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:36,806 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:36,806 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092395146]
[2025-05-07 17:28:36,807 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092395146] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:36,807 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:36,807 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:28:36,807 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139016497]
[2025-05-07 17:28:36,807 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:36,807 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:28:36,807 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:36,807 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:28:36,808 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:28:36,808 INFO  L87              Difference]: Start difference. First operand 46 states and 47 transitions. Second operand  has 7 states, 5 states have (on average 3.8) internal successors, (19), 7 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 17:28:36,864 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:36,864 INFO  L93              Difference]: Finished difference Result 48 states and 48 transitions.
[2025-05-07 17:28:36,865 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:28:36,865 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), 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 17:28:36,865 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:36,865 INFO  L225             Difference]: With dead ends: 48
[2025-05-07 17:28:36,865 INFO  L226             Difference]: Without dead ends: 42
[2025-05-07 17:28:36,865 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 17:28:36,866 INFO  L437           NwaCegarLoop]: 43 mSDtfsCounter, 2 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:36,866 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 241 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:36,867 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2025-05-07 17:28:36,868 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2025-05-07 17:28:36,869 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 17:28:36,869 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions.
[2025-05-07 17:28:36,869 INFO  L79                 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 41
[2025-05-07 17:28:36,869 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:36,869 INFO  L485      AbstractCegarLoop]: Abstraction has 42 states and 41 transitions.
[2025-05-07 17:28:36,869 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), 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 17:28:36,869 INFO  L278                IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions.
[2025-05-07 17:28:36,870 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-05-07 17:28:36,870 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:36,870 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 17:28:36,870 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:36,870 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:36,870 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:36,870 INFO  L85        PathProgramCache]: Analyzing trace with hash 578615650, now seen corresponding path program 1 times
[2025-05-07 17:28:36,871 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:36,871 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464745582]
[2025-05-07 17:28:36,871 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:36,871 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:36,884 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes.
[2025-05-07 17:28:36,894 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements.
[2025-05-07 17:28:36,894 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:36,894 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:37,085 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:28:37,085 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:37,085 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464745582]
[2025-05-07 17:28:37,085 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464745582] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:37,085 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:37,085 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2025-05-07 17:28:37,085 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870335802]
[2025-05-07 17:28:37,085 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:37,086 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2025-05-07 17:28:37,086 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:37,086 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2025-05-07 17:28:37,086 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2025-05-07 17:28:37,086 INFO  L87              Difference]: Start difference. First operand 42 states and 41 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 17:28:37,190 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:37,190 INFO  L93              Difference]: Finished difference Result 34 states and 33 transitions.
[2025-05-07 17:28:37,190 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-05-07 17:28:37,190 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 17:28:37,190 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:37,190 INFO  L225             Difference]: With dead ends: 34
[2025-05-07 17:28:37,190 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:37,191 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 17:28:37,192 INFO  L437           NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:37,192 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 274 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:28:37,193 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:37,193 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:37,193 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:28:37,193 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:37,193 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41
[2025-05-07 17:28:37,193 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:37,193 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:37,193 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 17:28:37,193 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:37,194 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:37,196 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:37,196 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:28:37,198 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2025-05-07 17:28:37,200 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:37,202 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:37 BoogieIcfgContainer
[2025-05-07 17:28:37,202 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:37,203 INFO  L158              Benchmark]: Toolchain (without parser) took 1427.45ms. Allocated memory is still 234.9MB. Free memory was 159.9MB in the beginning and 189.8MB in the end (delta: -29.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:37,203 INFO  L158              Benchmark]: SmtParser took 0.17ms. Allocated memory is still 234.9MB. Free memory is still 173.5MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:37,203 INFO  L158              Benchmark]: ChcToBoogie took 23.29ms. Allocated memory is still 234.9MB. Free memory was 159.9MB in the beginning and 158.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:37,203 INFO  L158              Benchmark]: Boogie Preprocessor took 44.11ms. Allocated memory is still 234.9MB. Free memory was 158.1MB in the beginning and 155.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:37,203 INFO  L158              Benchmark]: RCFGBuilder took 260.74ms. Allocated memory is still 234.9MB. Free memory was 155.4MB in the beginning and 135.0MB in the end (delta: 20.5MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
[2025-05-07 17:28:37,204 INFO  L158              Benchmark]: TraceAbstraction took 1095.66ms. Allocated memory is still 234.9MB. Free memory was 134.4MB in the beginning and 189.8MB in the end (delta: -55.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:37,204 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.17ms. Allocated memory is still 234.9MB. Free memory is still 173.5MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 23.29ms. Allocated memory is still 234.9MB. Free memory was 159.9MB in the beginning and 158.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 44.11ms. Allocated memory is still 234.9MB. Free memory was 158.1MB in the beginning and 155.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 260.74ms. Allocated memory is still 234.9MB. Free memory was 155.4MB in the beginning and 135.0MB in the end (delta: 20.5MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1095.66ms. Allocated memory is still 234.9MB. Free memory was 134.4MB in the beginning and 189.8MB in the end (delta: -55.4MB). 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 821 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 643 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 178 mSDtfsCounter, 103 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, 0 StatesRemovedByMinimization, 0 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, 245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:28:37,214 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
