./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA/chc-comp24-LIA-166.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:50,172 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:50,239 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654959e8-f1be-4f7b-8bbb-cbfdb7dfb278/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:50,247 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:50,248 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:50,285 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:50,286 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:50,286 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:50,286 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:50,286 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:50,286 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:50,287 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:50,287 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:50,288 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:50,289 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:50,289 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:50,289 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:50,290 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:50,290 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:50,290 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:50,290 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:50,290 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:50,290 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:50,290 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:50,290 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:50,291 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:50,291 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:50,636 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:50,650 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:50,652 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:50,656 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:50,657 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:50,658 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654959e8-f1be-4f7b-8bbb-cbfdb7dfb278/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA/chc-comp24-LIA-166.smt2
[2025-04-28 21:21:50,662 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:50,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:50,900 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654959e8-f1be-4f7b-8bbb-cbfdb7dfb278/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA/chc-comp24-LIA-166.smt2
[2025-04-28 21:21:50,904 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:50,906 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:50,908 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:50,909 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:50,909 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:50,917 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,944 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50 Unit
[2025-04-28 21:21:50,945 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:50,947 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:50,948 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:50,948 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:50,966 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,966 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,990 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,992 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,994 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,995 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:50,998 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:51,000 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:51,004 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:51,024 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:51,028 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:51,032 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:51,032 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:51,033 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (1/1) ...
[2025-04-28 21:21:51,036 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:51,054 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:51,069 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 21:21:51,073 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 21:21:51,085 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:51,085 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:51,086 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:51,086 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure CHC_COMP_FALSE given in one single declaration
[2025-04-28 21:21:51,086 INFO  L130     BoogieDeclarations]: Found specification of procedure CHC_COMP_FALSE
[2025-04-28 21:21:51,086 INFO  L138     BoogieDeclarations]: Found implementation of procedure CHC_COMP_FALSE
[2025-04-28 21:21:51,086 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure INV_REC_tr^tr given in one single declaration
[2025-04-28 21:21:51,086 INFO  L130     BoogieDeclarations]: Found specification of procedure INV_REC_tr^tr
[2025-04-28 21:21:51,086 INFO  L138     BoogieDeclarations]: Found implementation of procedure INV_REC_tr^tr
[2025-04-28 21:21:51,086 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure INV_REC_tr^tr_PRE given in one single declaration
[2025-04-28 21:21:51,087 INFO  L130     BoogieDeclarations]: Found specification of procedure INV_REC_tr^tr_PRE
[2025-04-28 21:21:51,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure INV_REC_tr^tr_PRE
[2025-04-28 21:21:51,087 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure INV_42 given in one single declaration
[2025-04-28 21:21:51,087 INFO  L130     BoogieDeclarations]: Found specification of procedure INV_42
[2025-04-28 21:21:51,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure INV_42
[2025-04-28 21:21:51,087 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure INV_42_PRE given in one single declaration
[2025-04-28 21:21:51,087 INFO  L130     BoogieDeclarations]: Found specification of procedure INV_42_PRE
[2025-04-28 21:21:51,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure INV_42_PRE
[2025-04-28 21:21:51,088 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:51,088 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:51,088 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:51,147 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:51,151 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:51,289 INFO  L?                        ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:51,289 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:51,301 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:51,302 INFO  L312             CfgBuilder]: Removed 3 assume(true) statements.
[2025-04-28 21:21:51,302 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:51 BoogieIcfgContainer
[2025-04-28 21:21:51,302 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:51,305 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:51,305 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:51,309 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:51,310 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:50" (1/3) ...
[2025-04-28 21:21:51,310 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fe3294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:51, skipping insertion in model container
[2025-04-28 21:21:51,310 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:50" (2/3) ...
[2025-04-28 21:21:51,311 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fe3294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:51, skipping insertion in model container
[2025-04-28 21:21:51,311 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:51" (3/3) ...
[2025-04-28 21:21:51,312 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:51,329 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:51,332 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 7 procedures, 27 locations, 38 edges, 7 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:51,380 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:51,394 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;@d3b2d2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:51,395 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:51,400 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 27 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8)
[2025-04-28 21:21:51,413 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2025-04-28 21:21:51,414 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:51,414 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2025-04-28 21:21:51,415 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:51,421 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:51,421 INFO  L85        PathProgramCache]: Analyzing trace with hash 64220045, now seen corresponding path program 1 times
[2025-04-28 21:21:51,428 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:51,428 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185857603]
[2025-04-28 21:21:51,429 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:51,429 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:51,453 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes.
[2025-04-28 21:21:51,456 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements.
[2025-04-28 21:21:51,456 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:51,456 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:51,490 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 21:21:51,490 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:51,491 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185857603]
[2025-04-28 21:21:51,492 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185857603] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:51,492 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:51,495 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-04-28 21:21:51,498 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467554227]
[2025-04-28 21:21:51,501 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:51,506 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-04-28 21:21:51,506 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:51,544 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-04-28 21:21:51,545 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-04-28 21:21:51,548 INFO  L87              Difference]: Start difference. First operand  has 27 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand  has 2 states, 2 states have (on average 1.5) internal successors, (3), 1 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2025-04-28 21:21:51,576 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:51,577 INFO  L93              Difference]: Finished difference Result 25 states and 27 transitions.
[2025-04-28 21:21:51,578 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-04-28 21:21:51,580 INFO  L79                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 1.5) internal successors, (3), 1 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 5
[2025-04-28 21:21:51,580 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:51,587 INFO  L225             Difference]: With dead ends: 25
[2025-04-28 21:21:51,588 INFO  L226             Difference]: Without dead ends: 25
[2025-04-28 21:21:51,590 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-04-28 21:21:51,594 INFO  L437           NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:51,595 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:51,611 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2025-04-28 21:21:51,631 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2025-04-28 21:21:51,632 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8)
[2025-04-28 21:21:51,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2025-04-28 21:21:51,639 INFO  L79                 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 5
[2025-04-28 21:21:51,639 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:51,639 INFO  L485      AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2025-04-28 21:21:51,639 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 1.5) internal successors, (3), 1 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2025-04-28 21:21:51,640 INFO  L278                IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2025-04-28 21:21:51,641 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2025-04-28 21:21:51,641 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:51,641 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 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 21:21:51,644 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:51,644 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:51,646 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:51,647 INFO  L85        PathProgramCache]: Analyzing trace with hash 1371261195, now seen corresponding path program 1 times
[2025-04-28 21:21:51,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:51,648 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90193911]
[2025-04-28 21:21:51,648 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:51,648 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:51,662 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes.
[2025-04-28 21:21:51,691 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements.
[2025-04-28 21:21:51,691 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:51,692 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:51,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2025-04-28 21:21:51,836 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:51,836 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90193911]
[2025-04-28 21:21:51,836 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90193911] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:51,836 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:51,836 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-04-28 21:21:51,836 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228605715]
[2025-04-28 21:21:51,836 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:51,838 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-04-28 21:21:51,838 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:51,839 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-04-28 21:21:51,839 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-28 21:21:51,839 INFO  L87              Difference]: Start difference. First operand 25 states and 27 transitions. Second operand  has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)
[2025-04-28 21:21:51,879 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:51,879 INFO  L93              Difference]: Finished difference Result 25 states and 26 transitions.
[2025-04-28 21:21:51,880 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-04-28 21:21:51,881 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 26
[2025-04-28 21:21:51,881 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:51,881 INFO  L225             Difference]: With dead ends: 25
[2025-04-28 21:21:51,882 INFO  L226             Difference]: Without dead ends: 24
[2025-04-28 21:21:51,882 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-28 21:21:51,883 INFO  L437           NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:51,883 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:51,884 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2025-04-28 21:21:51,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2025-04-28 21:21:51,888 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 24 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2025-04-28 21:21:51,889 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions.
[2025-04-28 21:21:51,889 INFO  L79                 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 26
[2025-04-28 21:21:51,889 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:51,889 INFO  L485      AbstractCegarLoop]: Abstraction has 24 states and 24 transitions.
[2025-04-28 21:21:51,890 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)
[2025-04-28 21:21:51,890 INFO  L278                IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions.
[2025-04-28 21:21:51,891 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2025-04-28 21:21:51,891 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:51,891 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 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 21:21:51,891 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-04-28 21:21:51,891 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:51,894 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:51,894 INFO  L85        PathProgramCache]: Analyzing trace with hash -974505810, now seen corresponding path program 1 times
[2025-04-28 21:21:51,895 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:51,895 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766480842]
[2025-04-28 21:21:51,895 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:51,895 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:51,916 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes.
[2025-04-28 21:21:51,954 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements.
[2025-04-28 21:21:51,954 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:51,954 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:52,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2025-04-28 21:21:52,323 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:52,323 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766480842]
[2025-04-28 21:21:52,323 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766480842] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:52,323 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:52,323 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-04-28 21:21:52,323 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933656501]
[2025-04-28 21:21:52,324 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:52,324 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-04-28 21:21:52,324 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:52,325 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-04-28 21:21:52,325 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-28 21:21:52,373 INFO  L87              Difference]: Start difference. First operand 24 states and 24 transitions. Second operand  has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)
[2025-04-28 21:21:52,393 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:52,393 INFO  L93              Difference]: Finished difference Result 18 states and 18 transitions.
[2025-04-28 21:21:52,394 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-04-28 21:21:52,394 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 26
[2025-04-28 21:21:52,395 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:52,395 INFO  L225             Difference]: With dead ends: 18
[2025-04-28 21:21:52,395 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:52,395 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-28 21:21:52,397 INFO  L437           NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:52,397 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:52,398 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:52,398 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:52,399 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 21:21:52,399 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:52,399 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2025-04-28 21:21:52,399 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:52,399 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:52,400 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)
[2025-04-28 21:21:52,400 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:52,401 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:52,405 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:52,405 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-04-28 21:21:52,410 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-04-28 21:21:52,415 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:52,423 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:52 BoogieIcfgContainer
[2025-04-28 21:21:52,425 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:52,426 INFO  L158              Benchmark]: Toolchain (without parser) took 1519.43ms. Allocated memory is still 234.9MB. Free memory was 162.1MB in the beginning and 198.4MB in the end (delta: -36.3MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,429 INFO  L158              Benchmark]: SmtParser took 1.95ms. Allocated memory is still 234.9MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,429 INFO  L158              Benchmark]: ChcToBoogie took 37.61ms. Allocated memory is still 234.9MB. Free memory was 162.1MB in the beginning and 161.3MB in the end (delta: 838.9kB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,430 INFO  L158              Benchmark]: Boogie Preprocessor took 79.44ms. Allocated memory is still 234.9MB. Free memory was 161.3MB in the beginning and 159.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,430 INFO  L158              Benchmark]: RCFGBuilder took 274.88ms. Allocated memory is still 234.9MB. Free memory was 159.6MB in the beginning and 150.6MB in the end (delta: 9.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:52,430 INFO  L158              Benchmark]: TraceAbstraction took 1119.70ms. Allocated memory is still 234.9MB. Free memory was 149.7MB in the beginning and 198.4MB in the end (delta: -48.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:52,432 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 1.95ms. Allocated memory is still 234.9MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 37.61ms. Allocated memory is still 234.9MB. Free memory was 162.1MB in the beginning and 161.3MB in the end (delta: 838.9kB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 79.44ms. Allocated memory is still 234.9MB. Free memory was 161.3MB in the beginning and 159.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 274.88ms. Allocated memory is still 234.9MB. Free memory was 159.6MB in the beginning and 150.6MB in the end (delta: 9.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1119.70ms. Allocated memory is still 234.9MB. Free memory was 149.7MB in the beginning and 198.4MB in the end (delta: -48.7MB). 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 7 procedures, 27 locations, 38 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, 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, 173 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 68 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 6/6 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 21:21:52,455 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
