./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-298.smt2 .


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


This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:34,067 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:34,170 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95461926-c32b-4f6f-b040-cd6cf2236bb3/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:34,175 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:34,175 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:34,206 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:34,208 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:34,208 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:34,209 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:34,209 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:34,210 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:34,210 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:34,210 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:34,210 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:34,210 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:34,210 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:34,211 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:34,211 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:34,211 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:34,211 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:34,211 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:34,211 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:34,211 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:34,211 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:34,211 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:34,214 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:34,214 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:34,545 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:34,558 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:34,560 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:34,564 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:34,564 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:34,566 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95461926-c32b-4f6f-b040-cd6cf2236bb3/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-298.smt2
[2025-04-28 21:21:34,567 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:34,574 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:35,406 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95461926-c32b-4f6f-b040-cd6cf2236bb3/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-298.smt2
[2025-04-28 21:21:35,410 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:35,412 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:35,413 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:35,413 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:35,413 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:35,418 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,498 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35 Unit
[2025-04-28 21:21:35,500 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:35,502 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:35,502 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:35,502 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:35,519 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,520 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,586 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,586 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,609 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,612 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,614 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,620 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,632 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,685 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:35,686 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:35,686 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:35,686 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:35,690 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (1/1) ...
[2025-04-28 21:21:35,696 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:35,718 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:35,734 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 21:21:35,739 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 21:21:35,754 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:35,755 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:35,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:35,755 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Assert .HSH0.CLN Main.java, line 13 given in one single declaration
[2025-04-28 21:21:35,755 INFO  L130     BoogieDeclarations]: Found specification of procedure Assert .HSH0.CLN Main.java, line 13
[2025-04-28 21:21:35,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure Assert .HSH0.CLN Main.java, line 13
[2025-04-28 21:21:35,755 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_10 given in one single declaration
[2025-04-28 21:21:35,755 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_10
[2025-04-28 21:21:35,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_10
[2025-04-28 21:21:35,755 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_9 given in one single declaration
[2025-04-28 21:21:35,755 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_9
[2025-04-28 21:21:35,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_9
[2025-04-28 21:21:35,756 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_8 given in one single declaration
[2025-04-28 21:21:35,756 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_8
[2025-04-28 21:21:35,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_8
[2025-04-28 21:21:35,756 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_7 given in one single declaration
[2025-04-28 21:21:35,756 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_7
[2025-04-28 21:21:35,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_7
[2025-04-28 21:21:35,756 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_6 given in one single declaration
[2025-04-28 21:21:35,756 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_6
[2025-04-28 21:21:35,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_6
[2025-04-28 21:21:35,756 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_5 given in one single declaration
[2025-04-28 21:21:35,756 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_5
[2025-04-28 21:21:35,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_5
[2025-04-28 21:21:35,757 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_4 given in one single declaration
[2025-04-28 21:21:35,757 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_4
[2025-04-28 21:21:35,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_4
[2025-04-28 21:21:35,757 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_3 given in one single declaration
[2025-04-28 21:21:35,757 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_3
[2025-04-28 21:21:35,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_3
[2025-04-28 21:21:35,757 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_2 given in one single declaration
[2025-04-28 21:21:35,757 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_2
[2025-04-28 21:21:35,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_2
[2025-04-28 21:21:35,757 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_1 given in one single declaration
[2025-04-28 21:21:35,757 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_1
[2025-04-28 21:21:35,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14_1
[2025-04-28 21:21:35,757 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14 given in one single declaration
[2025-04-28 21:21:35,757 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14
[2025-04-28 21:21:35,761 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block14
[2025-04-28 21:21:35,761 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 21:21:35,761 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_pre
[2025-04-28 21:21:35,761 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_pre
[2025-04-28 21:21:35,761 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:35,761 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:35,762 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:36,603 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:36,606 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:37,649 INFO  L?                        ?]: Removed 188 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:37,649 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:37,666 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:37,666 INFO  L312             CfgBuilder]: Removed 4 assume(true) statements.
[2025-04-28 21:21:37,666 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:37 BoogieIcfgContainer
[2025-04-28 21:21:37,667 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:37,671 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:37,671 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:37,676 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:37,676 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:35" (1/3) ...
[2025-04-28 21:21:37,677 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcf12ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:37, skipping insertion in model container
[2025-04-28 21:21:37,677 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:35" (2/3) ...
[2025-04-28 21:21:37,678 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcf12ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:37, skipping insertion in model container
[2025-04-28 21:21:37,678 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:37" (3/3) ...
[2025-04-28 21:21:37,679 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:37,700 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:37,703 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 15 procedures, 60 locations, 85 edges, 15 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:37,769 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:37,792 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;@1db0336b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:37,794 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:37,799 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 60 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 31 states have internal predecessors, (31), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (18), 14 states have call predecessors, (18), 18 states have call successors, (18)
[2025-04-28 21:21:37,815 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2025-04-28 21:21:37,816 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:37,817 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]
[2025-04-28 21:21:37,817 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:37,824 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:37,825 INFO  L85        PathProgramCache]: Analyzing trace with hash -1315703108, now seen corresponding path program 1 times
[2025-04-28 21:21:37,835 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:37,835 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275360206]
[2025-04-28 21:21:37,835 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:37,836 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:38,140 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes.
[2025-04-28 21:21:38,563 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements.
[2025-04-28 21:21:38,563 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:38,563 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:39,592 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 21:21:39,592 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:39,592 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275360206]
[2025-04-28 21:21:39,593 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275360206] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:39,593 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:39,597 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-28 21:21:39,599 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374734562]
[2025-04-28 21:21:39,601 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:39,607 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-04-28 21:21:39,611 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:39,694 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-04-28 21:21:39,698 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:39,701 INFO  L87              Difference]: Start difference. First operand  has 60 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 31 states have internal predecessors, (31), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (18), 14 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2025-04-28 21:21:39,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:39,810 INFO  L93              Difference]: Finished difference Result 52 states and 59 transitions.
[2025-04-28 21:21:39,817 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-04-28 21:21:39,819 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 53
[2025-04-28 21:21:39,819 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:39,832 INFO  L225             Difference]: With dead ends: 52
[2025-04-28 21:21:39,832 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:39,834 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 21:21:39,839 INFO  L437           NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 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 21:21:39,840 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:39,856 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:39,867 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:39,871 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 21:21:39,876 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:39,877 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53
[2025-04-28 21:21:39,877 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:39,878 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:39,878 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)
[2025-04-28 21:21:39,878 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:39,878 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:39,885 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:39,885 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:39,894 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2025-04-28 21:21:39,901 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:39,908 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:39 BoogieIcfgContainer
[2025-04-28 21:21:39,909 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:39,910 INFO  L158              Benchmark]: Toolchain (without parser) took 4497.95ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 155.6MB in the beginning and 208.5MB in the end (delta: -52.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:39,911 INFO  L158              Benchmark]: SmtParser took 0.36ms. Allocated memory is still 234.9MB. Free memory is still 170.6MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:39,912 INFO  L158              Benchmark]: ChcToBoogie took 87.37ms. Allocated memory is still 234.9MB. Free memory was 155.6MB in the beginning and 149.7MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:39,913 INFO  L158              Benchmark]: Boogie Preprocessor took 183.68ms. Allocated memory is still 234.9MB. Free memory was 149.7MB in the beginning and 144.8MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:39,913 INFO  L158              Benchmark]: RCFGBuilder took 1980.75ms. Allocated memory is still 234.9MB. Free memory was 143.8MB in the beginning and 98.9MB in the end (delta: 44.9MB). Peak memory consumption was 93.2MB. Max. memory is 33.6GB.
[2025-04-28 21:21:39,914 INFO  L158              Benchmark]: TraceAbstraction took 2237.45ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 98.9MB in the beginning and 208.5MB in the end (delta: -109.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:39,917 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.36ms. Allocated memory is still 234.9MB. Free memory is still 170.6MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 87.37ms. Allocated memory is still 234.9MB. Free memory was 155.6MB in the beginning and 149.7MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 183.68ms. Allocated memory is still 234.9MB. Free memory was 149.7MB in the beginning and 144.8MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 1980.75ms. Allocated memory is still 234.9MB. Free memory was 143.8MB in the beginning and 98.9MB in the end (delta: 44.9MB). Peak memory consumption was 93.2MB. Max. memory is 33.6GB.
 * TraceAbstraction took 2237.45ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 98.9MB in the beginning and 208.5MB in the end (delta: -109.6MB). There was no memory consumed. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 15 procedures, 60 locations, 85 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, 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, 172 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 113 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 59 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=60occurred 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 61 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 21:21:39,938 INFO  L540       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
sat
