./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/loops/do_while_break_2.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:29:20,170 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:29:20,227 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_492ec2a2-0510-469a-acf2-bb68e83308c4/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:29:20,231 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:29:20,231 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:29:20,250 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:29:20,251 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:29:20,251 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:29:20,251 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:29:20,251 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:29:20,252 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:29:20,252 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:29:20,252 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:29:20,252 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:29:20,252 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:29:20,252 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:29:20,252 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:29:20,253 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:29:20,253 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:20,253 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:29:20,253 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:29:20,253 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:29:20,253 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:29:20,253 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:29:20,253 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:29:20,254 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:29:20,254 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:29:20,471 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:29:20,478 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:29:20,480 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:29:20,481 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:29:20,481 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:29:20,482 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_492ec2a2-0510-469a-acf2-bb68e83308c4/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/loops/do_while_break_2.sol_0_no_adts_000.smt2
[2025-05-07 17:29:20,483 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:29:20,486 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:29:20,707 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_492ec2a2-0510-469a-acf2-bb68e83308c4/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/loops/do_while_break_2.sol_0_no_adts_000.smt2
[2025-05-07 17:29:20,709 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:29:20,710 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:29:20,711 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:29:20,711 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:29:20,711 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:29:20,713 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,742 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20 Unit
[2025-05-07 17:29:20,742 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:29:20,743 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:29:20,743 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:29:20,743 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:29:20,755 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,756 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,781 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,781 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,785 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,786 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,788 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,790 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,791 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,802 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:29:20,802 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:29:20,802 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:29:20,802 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:29:20,803 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (1/1) ...
[2025-05-07 17:29:20,805 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:29:20,816 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:29:20,825 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:29:20,827 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:29:20,834 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:29:20,835 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:29:20,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:29:20,835 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:29:20,835 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:29:20,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:29:20,835 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_31_0 given in one single declaration
[2025-05-07 17:29:20,835 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_31_0
[2025-05-07 17:29:20,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_31_0
[2025-05-07 17:29:20,835 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_31_0 given in one single declaration
[2025-05-07 17:29:20,835 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_31_0
[2025-05-07 17:29:20,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_31_0
[2025-05-07 17:29:20,835 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_19_C_31_0 given in one single declaration
[2025-05-07 17:29:20,835 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_19_C_31_0
[2025-05-07 17:29:20,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_19_C_31_0
[2025-05-07 17:29:20,835 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_21_C_31_0 given in one single declaration
[2025-05-07 17:29:20,835 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_21_C_31_0
[2025-05-07 17:29:20,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_21_C_31_0
[2025-05-07 17:29:20,835 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_20_C_31_0 given in one single declaration
[2025-05-07 17:29:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_20_C_31_0
[2025-05-07 17:29:20,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_20_C_31_0
[2025-05-07 17:29:20,836 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_22_C_31_0 given in one single declaration
[2025-05-07 17:29:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_22_C_31_0
[2025-05-07 17:29:20,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_22_C_31_0
[2025-05-07 17:29:20,836 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__30_31_0 given in one single declaration
[2025-05-07 17:29:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__30_31_0
[2025-05-07 17:29:20,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__30_31_0
[2025-05-07 17:29:20,836 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_function_f__30_31_0 given in one single declaration
[2025-05-07 17:29:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_function_f__30_31_0
[2025-05-07 17:29:20,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_function_f__30_31_0
[2025-05-07 17:29:20,836 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__30_31_0 given in one single declaration
[2025-05-07 17:29:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__30_31_0
[2025-05-07 17:29:20,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__30_31_0
[2025-05-07 17:29:20,836 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__30_31_0 given in one single declaration
[2025-05-07 17:29:20,836 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__30_31_0
[2025-05-07 17:29:20,836 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__30_31_0
[2025-05-07 17:29:20,836 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_f_29_31_0 given in one single declaration
[2025-05-07 17:29:20,837 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_f_29_31_0
[2025-05-07 17:29:20,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_f_29_31_0
[2025-05-07 17:29:20,837 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_f_29_31_0 given in one single declaration
[2025-05-07 17:29:20,837 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_f_29_31_0
[2025-05-07 17:29:20,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_f_29_31_0
[2025-05-07 17:29:20,837 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_while_body_f_21_31_0 given in one single declaration
[2025-05-07 17:29:20,837 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_while_body_f_21_31_0
[2025-05-07 17:29:20,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_while_body_f_21_31_0
[2025-05-07 17:29:20,837 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_while_header_f_22_31_0 given in one single declaration
[2025-05-07 17:29:20,837 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_while_header_f_22_31_0
[2025-05-07 17:29:20,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_while_header_f_22_31_0
[2025-05-07 17:29:20,837 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_29_31_0 given in one single declaration
[2025-05-07 17:29:20,837 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_29_31_0
[2025-05-07 17:29:20,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_29_31_0
[2025-05-07 17:29:20,837 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__30_31_0 given in one single declaration
[2025-05-07 17:29:20,837 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__30_31_0
[2025-05-07 17:29:20,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__30_31_0
[2025-05-07 17:29:20,837 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_f__30_31_0 given in one single declaration
[2025-05-07 17:29:20,837 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_f__30_31_0
[2025-05-07 17:29:20,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_f__30_31_0
[2025-05-07 17:29:20,838 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:29:20,838 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:29:20,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:29:20,945 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:29:20,947 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:29:21,117 INFO  L?                        ?]: Removed 116 outVars from TransFormulas that were not future-live.
[2025-05-07 17:29:21,118 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:29:21,129 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:29:21,130 INFO  L312             CfgBuilder]: Removed 8 assume(true) statements.
[2025-05-07 17:29:21,130 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:21 BoogieIcfgContainer
[2025-05-07 17:29:21,130 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:29:21,133 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:29:21,133 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:29:21,136 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:29:21,136 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:29:20" (1/3) ...
[2025-05-07 17:29:21,136 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eddbbe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:29:21, skipping insertion in model container
[2025-05-07 17:29:21,137 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:29:20" (2/3) ...
[2025-05-07 17:29:21,137 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eddbbe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:29:21, skipping insertion in model container
[2025-05-07 17:29:21,137 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:29:21" (3/3) ...
[2025-05-07 17:29:21,138 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:29:21,149 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:29:21,152 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 20 procedures, 77 locations, 108 edges, 20 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:29:21,192 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:29:21,204 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;@48324237, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:29:21,204 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:29:21,207 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 77 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 36 states have internal predecessors, (36), 23 states have call successors, (24), 19 states have call predecessors, (24), 19 states have return successors, (24), 21 states have call predecessors, (24), 23 states have call successors, (24)
[2025-05-07 17:29:21,214 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:29:21,214 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:21,215 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:29:21,215 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:21,220 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:21,220 INFO  L85        PathProgramCache]: Analyzing trace with hash 886459804, now seen corresponding path program 1 times
[2025-05-07 17:29:21,226 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:21,227 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026809209]
[2025-05-07 17:29:21,227 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:21,227 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:21,295 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:29:21,369 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:29:21,369 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:21,369 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:21,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:29:21,620 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:21,620 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026809209]
[2025-05-07 17:29:21,620 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026809209] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:21,620 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:21,623 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:29:21,624 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068338602]
[2025-05-07 17:29:21,625 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:21,628 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:29:21,628 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:21,666 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:29:21,666 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:29:21,669 INFO  L87              Difference]: Start difference. First operand  has 77 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 36 states have internal predecessors, (36), 23 states have call successors, (24), 19 states have call predecessors, (24), 19 states have return successors, (24), 21 states have call predecessors, (24), 23 states have call successors, (24) Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:29:21,706 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:21,706 INFO  L93              Difference]: Finished difference Result 79 states and 86 transitions.
[2025-05-07 17:29:21,707 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:29:21,709 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 66
[2025-05-07 17:29:21,709 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:21,714 INFO  L225             Difference]: With dead ends: 79
[2025-05-07 17:29:21,714 INFO  L226             Difference]: Without dead ends: 75
[2025-05-07 17:29:21,716 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 17:29:21,718 INFO  L437           NwaCegarLoop]: 82 mSDtfsCounter, 1 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 239 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 17:29:21,718 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 239 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:21,729 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2025-05-07 17:29:21,743 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73.
[2025-05-07 17:29:21,744 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 73 states, 32 states have (on average 1.03125) internal successors, (33), 33 states have internal predecessors, (33), 21 states have call successors, (22), 19 states have call predecessors, (22), 19 states have return successors, (22), 20 states have call predecessors, (22), 21 states have call successors, (22)
[2025-05-07 17:29:21,747 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions.
[2025-05-07 17:29:21,748 INFO  L79                 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 66
[2025-05-07 17:29:21,749 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:21,749 INFO  L485      AbstractCegarLoop]: Abstraction has 73 states and 77 transitions.
[2025-05-07 17:29:21,749 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:29:21,749 INFO  L278                IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions.
[2025-05-07 17:29:21,751 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:29:21,751 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:21,751 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:29:21,751 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:29:21,751 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:21,752 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:21,752 INFO  L85        PathProgramCache]: Analyzing trace with hash -201747688, now seen corresponding path program 1 times
[2025-05-07 17:29:21,752 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:21,752 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101050194]
[2025-05-07 17:29:21,752 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:21,752 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:21,787 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:29:21,819 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:29:21,819 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:21,819 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:22,102 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:29:22,102 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:22,102 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101050194]
[2025-05-07 17:29:22,102 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101050194] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:22,102 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:22,102 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2025-05-07 17:29:22,102 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720181340]
[2025-05-07 17:29:22,102 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:22,103 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2025-05-07 17:29:22,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:22,104 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2025-05-07 17:29:22,104 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2025-05-07 17:29:22,105 INFO  L87              Difference]: Start difference. First operand 73 states and 77 transitions. Second operand  has 12 states, 10 states have (on average 3.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18)
[2025-05-07 17:29:22,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:22,237 INFO  L93              Difference]: Finished difference Result 78 states and 83 transitions.
[2025-05-07 17:29:22,238 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-05-07 17:29:22,238 INFO  L79                 Accepts]: Start accepts. Automaton has  has 12 states, 10 states have (on average 3.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18) Word has length 66
[2025-05-07 17:29:22,238 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:22,239 INFO  L225             Difference]: With dead ends: 78
[2025-05-07 17:29:22,239 INFO  L226             Difference]: Without dead ends: 78
[2025-05-07 17:29:22,239 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2025-05-07 17:29:22,240 INFO  L437           NwaCegarLoop]: 71 mSDtfsCounter, 2 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:29:22,240 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 754 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:29:22,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2025-05-07 17:29:22,245 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78.
[2025-05-07 17:29:22,245 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 35 states have internal predecessors, (35), 22 states have call successors, (23), 19 states have call predecessors, (23), 21 states have return successors, (25), 23 states have call predecessors, (25), 22 states have call successors, (25)
[2025-05-07 17:29:22,246 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions.
[2025-05-07 17:29:22,246 INFO  L79                 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 66
[2025-05-07 17:29:22,246 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:22,246 INFO  L485      AbstractCegarLoop]: Abstraction has 78 states and 83 transitions.
[2025-05-07 17:29:22,246 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 10 states have (on average 3.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18)
[2025-05-07 17:29:22,246 INFO  L278                IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions.
[2025-05-07 17:29:22,248 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2025-05-07 17:29:22,248 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:29:22,248 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:29:22,248 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:29:22,248 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:29:22,248 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:29:22,248 INFO  L85        PathProgramCache]: Analyzing trace with hash -1386628328, now seen corresponding path program 1 times
[2025-05-07 17:29:22,249 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:29:22,249 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834188376]
[2025-05-07 17:29:22,249 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:29:22,249 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:29:22,275 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes.
[2025-05-07 17:29:22,296 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements.
[2025-05-07 17:29:22,297 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:29:22,297 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:29:22,514 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:29:22,515 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:29:22,515 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834188376]
[2025-05-07 17:29:22,515 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834188376] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:29:22,515 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:29:22,515 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:29:22,515 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729283332]
[2025-05-07 17:29:22,515 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:29:22,516 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:29:22,516 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:29:22,517 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:29:22,517 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:29:22,517 INFO  L87              Difference]: Start difference. First operand 78 states and 83 transitions. Second operand  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:29:22,529 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:29:22,529 INFO  L93              Difference]: Finished difference Result 41 states and 41 transitions.
[2025-05-07 17:29:22,530 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:29:22,530 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 66
[2025-05-07 17:29:22,530 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:29:22,530 INFO  L225             Difference]: With dead ends: 41
[2025-05-07 17:29:22,531 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:29:22,531 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 17:29:22,532 INFO  L437           NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 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 17:29:22,532 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:29:22,532 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:29:22,532 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:29:22,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:29:22,532 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:29:22,533 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66
[2025-05-07 17:29:22,533 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:29:22,533 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:29:22,533 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 4 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:29:22,533 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:29:22,533 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:29:22,535 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:29:22,536 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:29:22,538 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-05-07 17:29:22,539 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:29:22,542 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:29:22 BoogieIcfgContainer
[2025-05-07 17:29:22,542 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:29:22,542 INFO  L158              Benchmark]: Toolchain (without parser) took 1832.29ms. Allocated memory is still 234.9MB. Free memory was 156.1MB in the beginning and 151.8MB in the end (delta: 4.3MB). Peak memory consumption was 10.4MB. Max. memory is 33.6GB.
[2025-05-07 17:29:22,543 INFO  L158              Benchmark]: SmtParser took 0.26ms. Allocated memory is still 234.9MB. Free memory is still 173.2MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:22,543 INFO  L158              Benchmark]: ChcToBoogie took 32.06ms. Allocated memory is still 234.9MB. Free memory was 156.1MB in the beginning and 154.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:22,543 INFO  L158              Benchmark]: Boogie Preprocessor took 58.56ms. Allocated memory is still 234.9MB. Free memory was 154.0MB in the beginning and 151.1MB in the end (delta: 2.8MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:29:22,543 INFO  L158              Benchmark]: RCFGBuilder took 327.91ms. Allocated memory is still 234.9MB. Free memory was 151.0MB in the beginning and 128.5MB in the end (delta: 22.5MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:29:22,543 INFO  L158              Benchmark]: TraceAbstraction took 1409.02ms. Allocated memory is still 234.9MB. Free memory was 127.9MB in the beginning and 151.8MB in the end (delta: -23.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:29:22,544 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.26ms. Allocated memory is still 234.9MB. Free memory is still 173.2MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 32.06ms. Allocated memory is still 234.9MB. Free memory was 156.1MB in the beginning and 154.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 58.56ms. Allocated memory is still 234.9MB. Free memory was 154.0MB in the beginning and 151.1MB in the end (delta: 2.8MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 327.91ms. Allocated memory is still 234.9MB. Free memory was 151.0MB in the beginning and 128.5MB in the end (delta: 22.5MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1409.02ms. Allocated memory is still 234.9MB. Free memory was 127.9MB in the beginning and 151.8MB in the end (delta: -23.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 20 procedures, 77 locations, 108 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 1106 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 913 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 193 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 195 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:29:22,554 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
