./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-289.smt2 .


--------------------------------------------------------------------------------


This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:47,211 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:47,302 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dce7c96d-109a-4c95-9080-9f1c08d8d03d/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:47,307 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:47,307 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:47,343 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:47,344 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:47,344 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:47,345 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:47,345 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:47,346 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:47,346 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:47,346 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:47,346 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:47,346 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:47,346 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:47,347 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:47,347 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:47,347 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:47,347 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:47,347 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:47,347 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:47,347 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:47,347 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:47,348 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:47,351 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:47,351 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:47,707 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:47,720 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:47,723 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:47,727 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:47,727 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:47,729 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dce7c96d-109a-4c95-9080-9f1c08d8d03d/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-289.smt2
[2025-04-28 21:21:47,732 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:47,736 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:48,021 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dce7c96d-109a-4c95-9080-9f1c08d8d03d/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-289.smt2
[2025-04-28 21:21:48,024 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:48,027 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:48,028 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:48,029 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:48,029 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:48,035 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,075 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48 Unit
[2025-04-28 21:21:48,075 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:48,076 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:48,077 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:48,077 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:48,096 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,096 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,134 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,135 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,143 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,144 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,150 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,154 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,155 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,173 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:48,174 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:48,174 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:48,174 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:48,175 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (1/1) ...
[2025-04-28 21:21:48,178 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:48,193 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:48,212 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)
[2025-04-28 21:21:48,216 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-04-28 21:21:48,229 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:48,230 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:48,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:48,230 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Assert .HSH0.CLN Main.java, line 14 given in one single declaration
[2025-04-28 21:21:48,230 INFO  L130     BoogieDeclarations]: Found specification of procedure Assert .HSH0.CLN Main.java, line 14
[2025-04-28 21:21:48,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure Assert .HSH0.CLN Main.java, line 14
[2025-04-28 21:21:48,230 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_9 given in one single declaration
[2025-04-28 21:21:48,230 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_9
[2025-04-28 21:21:48,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_9
[2025-04-28 21:21:48,231 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_8 given in one single declaration
[2025-04-28 21:21:48,231 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_8
[2025-04-28 21:21:48,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_8
[2025-04-28 21:21:48,231 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_7 given in one single declaration
[2025-04-28 21:21:48,231 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_7
[2025-04-28 21:21:48,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_7
[2025-04-28 21:21:48,232 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_6 given in one single declaration
[2025-04-28 21:21:48,232 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_6
[2025-04-28 21:21:48,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_6
[2025-04-28 21:21:48,233 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_5 given in one single declaration
[2025-04-28 21:21:48,233 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_5
[2025-04-28 21:21:48,233 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_5
[2025-04-28 21:21:48,233 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_4 given in one single declaration
[2025-04-28 21:21:48,233 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_4
[2025-04-28 21:21:48,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_4
[2025-04-28 21:21:48,234 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_3 given in one single declaration
[2025-04-28 21:21:48,234 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_3
[2025-04-28 21:21:48,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_3
[2025-04-28 21:21:48,234 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_2 given in one single declaration
[2025-04-28 21:21:48,234 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_2
[2025-04-28 21:21:48,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_2
[2025-04-28 21:21:48,234 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_1 given in one single declaration
[2025-04-28 21:21:48,234 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_1
[2025-04-28 21:21:48,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5_1
[2025-04-28 21:21:48,234 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5 given in one single declaration
[2025-04-28 21:21:48,234 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5
[2025-04-28 21:21:48,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block5
[2025-04-28 21:21:48,235 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_pre given in one single declaration
[2025-04-28 21:21:48,235 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_pre
[2025-04-28 21:21:48,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_pre
[2025-04-28 21:21:48,235 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:48,235 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:48,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:48,449 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:48,452 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:48,687 INFO  L?                        ?]: Removed 30 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:48,687 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:48,713 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:48,713 INFO  L312             CfgBuilder]: Removed 3 assume(true) statements.
[2025-04-28 21:21:48,714 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:48 BoogieIcfgContainer
[2025-04-28 21:21:48,714 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:48,716 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:48,716 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:48,721 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:48,722 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:48" (1/3) ...
[2025-04-28 21:21:48,723 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a950e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:48, skipping insertion in model container
[2025-04-28 21:21:48,723 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:48" (2/3) ...
[2025-04-28 21:21:48,723 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a950e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:48, skipping insertion in model container
[2025-04-28 21:21:48,724 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:48" (3/3) ...
[2025-04-28 21:21:48,725 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:48,745 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:48,749 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 14 procedures, 53 locations, 65 edges, 14 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:48,816 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:48,838 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;@3ad3342d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:48,841 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:48,849 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 53 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2025-04-28 21:21:48,864 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2025-04-28 21:21:48,864 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:48,865 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]
[2025-04-28 21:21:48,866 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:48,872 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:48,872 INFO  L85        PathProgramCache]: Analyzing trace with hash -1595600856, now seen corresponding path program 1 times
[2025-04-28 21:21:48,881 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:48,882 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116298912]
[2025-04-28 21:21:48,882 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:48,883 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:48,993 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes.
[2025-04-28 21:21:49,101 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements.
[2025-04-28 21:21:49,102 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:49,102 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:49,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:49,448 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:49,448 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116298912]
[2025-04-28 21:21:49,451 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116298912] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:49,451 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:49,457 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-28 21:21:49,458 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806805287]
[2025-04-28 21:21:49,459 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:49,464 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-04-28 21:21:49,466 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:49,496 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-04-28 21:21:49,497 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:49,499 INFO  L87              Difference]: Start difference. First operand  has 53 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand  has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13)
[2025-04-28 21:21:49,568 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:49,568 INFO  L93              Difference]: Finished difference Result 45 states and 44 transitions.
[2025-04-28 21:21:49,569 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-04-28 21:21:49,571 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 50
[2025-04-28 21:21:49,571 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:49,575 INFO  L225             Difference]: With dead ends: 45
[2025-04-28 21:21:49,575 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:49,612 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
[2025-04-28 21:21:49,618 INFO  L437           NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:49,618 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:49,634 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:49,648 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:49,649 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)
[2025-04-28 21:21:49,663 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:49,665 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50
[2025-04-28 21:21:49,665 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:49,665 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:49,665 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13)
[2025-04-28 21:21:49,665 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:49,666 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:49,672 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:49,672 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:49,680 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2025-04-28 21:21:49,690 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:49,698 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:49 BoogieIcfgContainer
[2025-04-28 21:21:49,698 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:49,699 INFO  L158              Benchmark]: Toolchain (without parser) took 1671.71ms. Allocated memory is still 234.9MB. Free memory was 160.5MB in the beginning and 197.2MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:49,704 INFO  L158              Benchmark]: SmtParser took 1.84ms. Allocated memory is still 234.9MB. Free memory is still 172.9MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:49,705 INFO  L158              Benchmark]: ChcToBoogie took 47.45ms. Allocated memory is still 234.9MB. Free memory was 160.5MB in the beginning and 159.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:49,705 INFO  L158              Benchmark]: Boogie Preprocessor took 96.88ms. Allocated memory is still 234.9MB. Free memory was 159.0MB in the beginning and 156.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:49,705 INFO  L158              Benchmark]: RCFGBuilder took 540.00ms. Allocated memory is still 234.9MB. Free memory was 156.6MB in the beginning and 136.9MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:49,706 INFO  L158              Benchmark]: TraceAbstraction took 981.77ms. Allocated memory is still 234.9MB. Free memory was 136.2MB in the beginning and 197.2MB in the end (delta: -61.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:49,707 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 1.84ms. Allocated memory is still 234.9MB. Free memory is still 172.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 47.45ms. Allocated memory is still 234.9MB. Free memory was 160.5MB in the beginning and 159.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 96.88ms. Allocated memory is still 234.9MB. Free memory was 159.0MB in the beginning and 156.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 540.00ms. Allocated memory is still 234.9MB. Free memory was 156.6MB in the beginning and 136.9MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 981.77ms. Allocated memory is still 234.9MB. Free memory was 136.2MB in the beginning and 197.2MB in the end (delta: -61.1MB). 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 14 procedures, 53 locations, 65 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 44 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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!
[2025-04-28 21:21:49,736 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
