fond
Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r208-smll-152732257800489
Last Updated
June 26, 2018

About the Execution of LoLA for RobotManipulation-PT-10000

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15918.480 1016528.00 1019886.00 4912.30 TFTFFF?FTFFFFFFF normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Waiting for the VM to be ready (probing ssh)
......................
/home/mcc/execution
total 176K
-rw-r--r-- 1 mcc users 4.0K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 21K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.8K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 15 18:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:50 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.2K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.5K May 26 09:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 11K May 26 09:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 26 09:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 9.4K May 26 09:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 117 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 355 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 2.7K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 13K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 15 18:50 equiv_col
-rw-r--r-- 1 mcc users 6 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 6.3K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool lola
Input is RobotManipulation-PT-10000, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r208-smll-152732257800489
=====================================================================


--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-00
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-01
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-02
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-03
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-04
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-05
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-06
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-07
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-08
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-09
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-10
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-11
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-12
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-13
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-14
FORMULA_NAME RobotManipulation-PT-10000-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1528116163995

info: Time: 3600 - MCC
===========================================================================================
prep: translating RobotManipulation-PT-10000 Petri net model.pnml into LoLA format
===========================================================================================
prep: translating PT Petri net complete
prep: check for too many tokens
===========================================================================================
prep: translating RobotManipulation-PT-10000 formula LTLCardinality into LoLA format
===========================================================================================
prep: translating PT formula complete
vrfy: Checking LTLCardinality @ RobotManipulation-PT-10000 @ 3570 seconds
lola: LoLA will run for 3570 seconds at most (--timelimit)
lola: NET
lola: reading net from model.pnml.lola
lola: finished parsing
lola: closed net file model.pnml.lola
lola: 26/65536 symbol table entries, 0 collisions
lola: preprocessing...
lola: Size of bit vector: 480
lola: finding significant places
lola: 15 places, 11 transitions, 9 significant places
lola: computing forward-conflicting sets
lola: computing back-conflicting sets
lola: 14 transition conflict sets
lola: TASK
lola: reading formula from RobotManipulation-PT-10000-LTLCardinality.task
lola: A (X ((G ((3 <= p_sc)) U (r_moving <= r_stopped)))) : A (F ((2 <= r_active))) : A (F (X (((1 <= access) U (3 <= r_stopped))))) : A ((1 <= initialized)) : A ((2 <= off)) : A (X (G ((1 <= p_rdy)))) : A (X ((G ((p_sc <= p_rdy)) U G ((p_rel <= move))))) : A ((F (X ((p_m <= p_sc))) U X ((p_i1 <= p_rel)))) : A ((2 <= access)) : A (X (((p_rdy <= initialize) U X ((1 <= r_moving))))) : A (G (G ((p_i1 <= p_rdy)))) : A (F (F (G ((2 <= p_sc))))) : A (F (F (G (X ((2 <= p_i1)))))) : A (F ((X ((initialize <= move)) U G ((3 <= moved))))) : A ((G (F ((2 <= initialized))) U F ((2 <= p_rdy)))) : A (F (X (F (G ((r_stopped <= r_moving))))))
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:410
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 223 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (1 <= initialized)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (1 <= initialized)
lola: processed formula length: 18
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: processed formula with 1 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-3 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 1 will run for 238 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (2 <= off)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (2 <= off)
lola: processed formula length: 10
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: processed formula with 1 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-4 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 2 will run for 255 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (2 <= access)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (2 <= access)
lola: processed formula length: 13
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: processed formula with 1 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: produced by: preprocessing
lola: The net satisfies the property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-8 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 3 will run for 274 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (F ((3 <= r_stopped))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (F ((3 <= r_stopped))))
lola: processed formula length: 28
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: produced by: LTL model checker
lola: The net satisfies the given formula (language of the product automaton is empty).
lola: 2 markings, 1 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-2 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 4 will run for 297 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (G ((1 <= p_rdy))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (G ((1 <= p_rdy))))
lola: processed formula length: 24
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 3 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 100005 markings, 100005 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-5 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 5 will run for 324 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X ((G ((p_rel <= move)) OR (G ((p_sc <= p_rdy)) AND F (G ((p_rel <= move)))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X ((G ((p_rel <= move)) OR (G ((p_sc <= p_rdy)) AND F (G ((p_rel <= move)))))))
lola: processed formula length: 82
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 8 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: 1397717 markings, 4551185 edges, 279543 markings/sec, 0 secs
lola: 2565783 markings, 9138892 edges, 233613 markings/sec, 5 secs
lola: 3455645 markings, 12712354 edges, 177972 markings/sec, 10 secs
lola: 4390562 markings, 16531071 edges, 186983 markings/sec, 15 secs
lola: 5293103 markings, 20246265 edges, 180508 markings/sec, 20 secs
lola: 6117367 markings, 23664474 edges, 164853 markings/sec, 25 secs
lola: 6968937 markings, 27215898 edges, 170314 markings/sec, 30 secs
lola: 7803607 markings, 30714486 edges, 166934 markings/sec, 35 secs
lola: 8635020 markings, 34219097 edges, 166283 markings/sec, 40 secs
lola: 9453836 markings, 37690405 edges, 163763 markings/sec, 45 secs
lola: 10262177 markings, 41119560 edges, 161668 markings/sec, 50 secs
lola: 11062715 markings, 44536143 edges, 160108 markings/sec, 55 secs
lola: 11860377 markings, 47941042 edges, 159532 markings/sec, 60 secs
lola: 12642498 markings, 51297105 edges, 156424 markings/sec, 65 secs
lola: 13423277 markings, 54653330 edges, 156156 markings/sec, 70 secs
lola: 14132703 markings, 57715134 edges, 141885 markings/sec, 75 secs
lola: 14859295 markings, 60848424 edges, 145318 markings/sec, 80 secs
lola: 15578061 markings, 63965640 edges, 143753 markings/sec, 85 secs
lola: 16293510 markings, 67071465 edges, 143090 markings/sec, 90 secs
lola: 17003272 markings, 70157821 edges, 141952 markings/sec, 95 secs
lola: 17711389 markings, 73238281 edges, 141623 markings/sec, 100 secs
lola: 18423237 markings, 76327308 edges, 142370 markings/sec, 105 secs
lola: 19128056 markings, 79398284 edges, 140964 markings/sec, 110 secs
lola: 19824178 markings, 82445890 edges, 139224 markings/sec, 115 secs
lola: 20514845 markings, 85476765 edges, 138133 markings/sec, 120 secs
lola: 21206273 markings, 88505259 edges, 138286 markings/sec, 125 secs
lola: 21899739 markings, 91534281 edges, 138693 markings/sec, 130 secs
lola: 22589562 markings, 94551410 edges, 137965 markings/sec, 135 secs
lola: 23256577 markings, 97507215 edges, 133403 markings/sec, 140 secs
lola: 23930035 markings, 100483595 edges, 134692 markings/sec, 145 secs
lola: 24597555 markings, 103439578 edges, 133504 markings/sec, 150 secs
lola: 25268058 markings, 106396320 edges, 134101 markings/sec, 155 secs
lola: 25933267 markings, 109336989 edges, 133042 markings/sec, 160 secs
lola: 26606764 markings, 112296107 edges, 134699 markings/sec, 165 secs
lola: 27264439 markings, 115219369 edges, 131535 markings/sec, 170 secs
lola: 27921481 markings, 118135335 edges, 131408 markings/sec, 175 secs
lola: 28572989 markings, 121037055 edges, 130302 markings/sec, 180 secs
lola: 29230103 markings, 123946051 edges, 131423 markings/sec, 185 secs
lola: 29884456 markings, 126844203 edges, 130871 markings/sec, 190 secs
lola: 30534956 markings, 129734143 edges, 130100 markings/sec, 195 secs
lola: 31182286 markings, 132612246 edges, 129466 markings/sec, 200 secs
lola: 31826763 markings, 135482987 edges, 128895 markings/sec, 205 secs
lola: 32466951 markings, 138340945 edges, 128038 markings/sec, 210 secs
lola: 33101561 markings, 141187043 edges, 126922 markings/sec, 215 secs
lola: 33741457 markings, 144039754 edges, 127979 markings/sec, 220 secs
lola: 34378902 markings, 146887087 edges, 127489 markings/sec, 225 secs
lola: 35013402 markings, 149729936 edges, 126900 markings/sec, 230 secs
lola: 35650848 markings, 152571776 edges, 127489 markings/sec, 235 secs
lola: 36280466 markings, 155388663 edges, 125924 markings/sec, 240 secs
lola: 36913647 markings, 158215359 edges, 126636 markings/sec, 245 secs
lola: 37539290 markings, 161028914 edges, 125129 markings/sec, 250 secs
lola: 38155490 markings, 163810376 edges, 123240 markings/sec, 255 secs
lola: 38778585 markings, 166606736 edges, 124619 markings/sec, 260 secs
lola: 39401248 markings, 169408825 edges, 124533 markings/sec, 265 secs
lola: 40024409 markings, 172202484 edges, 124632 markings/sec, 270 secs
lola: 40647364 markings, 174992954 edges, 124591 markings/sec, 275 secs
lola: 41265386 markings, 177775299 edges, 123604 markings/sec, 280 secs
lola: 41884647 markings, 180553750 edges, 123852 markings/sec, 285 secs
lola: 42500269 markings, 183329612 edges, 123124 markings/sec, 290 secs
lola: 43126236 markings, 186126706 edges, 125193 markings/sec, 295 secs
lola: 43749032 markings, 188916782 edges, 124559 markings/sec, 300 secs
lola: 44356637 markings, 191663180 edges, 121521 markings/sec, 305 secs
lola: 44963817 markings, 194409849 edges, 121436 markings/sec, 310 secs
lola: 45570598 markings, 197156500 edges, 121356 markings/sec, 315 secs
lola: local time limit reached - aborting
lola:
preliminary result: unknown unknown yes no no no unknown unknown yes unknown unknown unknown unknown unknown unknown unknown
lola: memory consumption: 8889760 KB
lola: time consumption: 324 seconds
lola: Child process aborted or communication problem between parent and child process
lola: subprocess 6 will run for 324 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X ((F ((p_m <= p_sc)) U (p_i1 <= p_rel))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X ((F ((p_m <= p_sc)) U (p_i1 <= p_rel))))
lola: processed formula length: 45
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 3 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 100011 markings, 100011 edges

FORMULA RobotManipulation-PT-10000-LTLCardinality-7 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: ========================================
lola: subprocess 7 will run for 360 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (((r_moving <= r_stopped) OR (G ((3 <= p_sc)) AND F ((r_moving <= r_stopped))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (((r_moving <= r_stopped) OR (G ((3 <= p_sc)) AND F ((r_moving <= r_stopped))))))
lola: processed formula length: 86
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 6 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: produced by: LTL model checker
lola: The net satisfies the given formula (language of the product automaton is empty).
lola: 3 markings, 2 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-0 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 8 will run for 405 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (((p_rdy <= initialize) U X ((1 <= r_moving)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (((p_rdy <= initialize) U X ((1 <= r_moving)))))
lola: processed formula length: 53
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 5 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 100005 markings, 100005 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-9 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 9 will run for 463 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((p_i1 <= p_rdy)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:631
lola: rewrite Frontend/Parser/formula_rewrite.k:694
lola: processed formula: A (G ((p_i1 <= p_rdy)))
lola: processed formula length: 23
lola: 22 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: rewrite Frontend/Parser/formula_rewrite.k:631
lola: rewrite Frontend/Parser/formula_rewrite.k:694
lola: formula 0: (p_rdy + 1 <= p_i1)
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: 0 markings, 0 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 10 will run for 540 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F ((2 <= r_active)))
lola: ========================================
lola: SUBTASK
lola: checking eventual occurrence
lola: rewrite Frontend/Parser/formula_rewrite.k:659
lola: rewrite Frontend/Parser/formula_rewrite.k:694
lola: processed formula: (r_active <= 1)
lola: processed formula length: 15
lola: 22 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space / EG)
lola: state space: using search routine for EG formula (--search=depth)
lola: state space: using EG preserving stubborn set method (--stubborn=tarjan)
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: state space / EG
lola: The predicate does not eventually occur.
lola: 20009 markings, 20009 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-1 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 11 will run for 649 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G ((2 <= p_sc))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G ((2 <= p_sc))))
lola: processed formula length: 23
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 100005 markings, 100006 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 12 will run for 811 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G ((2 <= p_i1))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G ((2 <= p_i1))))
lola: processed formula length: 23
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 100006 markings, 100007 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 13 will run for 1081 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G ((3 <= moved))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G ((3 <= moved))))
lola: processed formula length: 24
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 100006 markings, 100007 edges

FORMULA RobotManipulation-PT-10000-LTLCardinality-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: ========================================
lola: subprocess 14 will run for 1622 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((F ((2 <= p_rdy)) OR (G (F ((2 <= initialized))) AND F ((2 <= p_rdy)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A ((F ((2 <= p_rdy)) OR (G (F ((2 <= initialized))) AND F ((2 <= p_rdy)))))
lola: processed formula length: 75
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 4 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 120004 markings, 120004 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-14 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 15 will run for 3244 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G ((r_stopped <= r_moving))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G ((r_stopped <= r_moving))))
lola: processed formula length: 35
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: add low 2
lola: add low 6
lola: add low 4
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 100022 markings, 100027 edges
lola: ========================================

FORMULA RobotManipulation-PT-10000-LTLCardinality-15 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: ========================================
lola: ...considering subproblem: A (X ((G ((p_rel <= move)) OR (G ((p_sc <= p_rdy)) AND F (G ((p_rel <= move)))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X ((G ((p_rel <= move)) OR (G ((p_sc <= p_rdy)) AND F (G ((p_rel <= move)))))))
lola: processed formula length: 82
lola: 20 rewrites
lola: closed formula file RobotManipulation-PT-10000-LTLCardinality.task
lola: the resulting Büchi automaton has 8 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: 1590302 markings, 5295434 edges, 318060 markings/sec, 0 secs
lola: 2668428 markings, 9547407 edges, 215625 markings/sec, 5 secs
lola: 3672373 markings, 13597674 edges, 200789 markings/sec, 10 secs
lola: 4635850 markings, 17545048 edges, 192695 markings/sec, 15 secs
lola: 5559151 markings, 21350752 edges, 184660 markings/sec, 20 secs
lola: 6447429 markings, 25041195 edges, 177656 markings/sec, 25 secs
lola: 7315627 markings, 28672246 edges, 173640 markings/sec, 30 secs
lola: 8168327 markings, 32254382 edges, 170540 markings/sec, 35 secs
lola: 9004195 markings, 35783923 edges, 167174 markings/sec, 40 secs
lola: 9824943 markings, 39256638 edges, 164150 markings/sec, 45 secs
lola: 10624668 markings, 42677179 edges, 159945 markings/sec, 50 secs
lola: 11428686 markings, 46091007 edges, 160804 markings/sec, 55 secs
lola: 12214497 markings, 49460395 edges, 157162 markings/sec, 60 secs
lola: 12990181 markings, 52793868 edges, 155137 markings/sec, 65 secs
lola: 13760555 markings, 56110189 edges, 154075 markings/sec, 70 secs
lola: 14524762 markings, 59404863 edges, 152841 markings/sec, 75 secs
lola: 15281082 markings, 62673451 edges, 151264 markings/sec, 80 secs
lola: 16028170 markings, 65918444 edges, 149418 markings/sec, 85 secs
lola: 16769725 markings, 69145340 edges, 148311 markings/sec, 90 secs
lola: 17506138 markings, 72347044 edges, 147283 markings/sec, 95 secs
lola: 18240292 markings, 75539449 edges, 146831 markings/sec, 100 secs
lola: 18969283 markings, 78711189 edges, 145798 markings/sec, 105 secs
lola: 19689385 markings, 81852457 edges, 144020 markings/sec, 110 secs
lola: 20398241 markings, 84961252 edges, 141771 markings/sec, 115 secs
lola: 21100291 markings, 88042282 edges, 140410 markings/sec, 120 secs
lola: 21803976 markings, 91119575 edges, 140737 markings/sec, 125 secs
lola: 22503967 markings, 94180174 edges, 139998 markings/sec, 130 secs
lola: 23182595 markings, 97180907 edges, 135726 markings/sec, 135 secs
lola: 23863781 markings, 100187915 edges, 136237 markings/sec, 140 secs
lola: 24532153 markings, 103157325 edges, 133674 markings/sec, 145 secs
lola: 25209359 markings, 106135626 edges, 135441 markings/sec, 150 secs
lola: 25877284 markings, 109085599 edges, 133585 markings/sec, 155 secs
lola: 26548748 markings, 112042711 edges, 134293 markings/sec, 160 secs
lola: 27209736 markings, 114973592 edges, 132198 markings/sec, 165 secs
lola: 27865792 markings, 117886515 edges, 131211 markings/sec, 170 secs
lola: 28516083 markings, 120780404 edges, 130058 markings/sec, 175 secs
lola: 29170764 markings, 123680096 edges, 130936 markings/sec, 180 secs
lola: 29822119 markings, 126562950 edges, 130271 markings/sec, 185 secs
lola: 30467657 markings, 129432215 edges, 129108 markings/sec, 190 secs
lola: 31110901 markings, 132290114 edges, 128649 markings/sec, 195 secs
lola: 31749199 markings, 135135312 edges, 127660 markings/sec, 200 secs
lola: 32384407 markings, 137971177 edges, 127042 markings/sec, 205 secs
lola: 33013849 markings, 140789767 edges, 125888 markings/sec, 210 secs
lola: 33642985 markings, 143602297 edges, 125827 markings/sec, 215 secs
lola: 34273772 markings, 146415694 edges, 126157 markings/sec, 220 secs
lola: 34900282 markings, 149222376 edges, 125302 markings/sec, 225 secs
lola: 35529623 markings, 152024136 edges, 125868 markings/sec, 230 secs
lola: 36144428 markings, 154787948 edges, 122961 markings/sec, 235 secs
lola: 36770385 markings, 157571772 edges, 125191 markings/sec, 240 secs
lola: 37385940 markings, 160338711 edges, 123111 markings/sec, 245 secs
lola: 37991886 markings, 163075958 edges, 121189 markings/sec, 250 secs
lola: 38604060 markings, 165822652 edges, 122435 markings/sec, 255 secs
lola: 39216309 markings, 168570707 edges, 122450 markings/sec, 260 secs
lola: 39825760 markings, 171307908 edges, 121890 markings/sec, 265 secs
lola: 40433091 markings, 174031767 edges, 121466 markings/sec, 270 secs
lola: 41039108 markings, 176754497 edges, 121203 markings/sec, 275 secs
lola: 41640519 markings, 179462177 edges, 120282 markings/sec, 280 secs
lola: 42241089 markings, 182169095 edges, 120114 markings/sec, 285 secs
lola: 42850264 markings, 184890721 edges, 121835 markings/sec, 290 secs
lola: 43454870 markings, 187599228 edges, 120921 markings/sec, 295 secs
lola: 44054014 markings, 190299340 edges, 119829 markings/sec, 300 secs
lola: 44644984 markings, 192968700 edges, 118194 markings/sec, 305 secs
lola: 45234714 markings, 195638113 edges, 117946 markings/sec, 310 secs
lola: 45827639 markings, 198311365 edges, 118585 markings/sec, 315 secs
lola: 46415473 markings, 200968653 edges, 117567 markings/sec, 320 secs
lola: 46997816 markings, 203605678 edges, 116469 markings/sec, 325 secs
lola: 47581312 markings, 206246544 edges, 116699 markings/sec, 330 secs
lola: 48166627 markings, 208888463 edges, 117063 markings/sec, 335 secs
lola: 48744855 markings, 211510893 edges, 115646 markings/sec, 340 secs
lola: 49309182 markings, 214061403 edges, 112865 markings/sec, 345 secs
lola: 49882664 markings, 216650157 edges, 114696 markings/sec, 350 secs
lola: 50459351 markings, 219265159 edges, 115337 markings/sec, 355 secs
lola: 51035124 markings, 221871386 edges, 115155 markings/sec, 360 secs
lola: 51615241 markings, 224490090 edges, 116023 markings/sec, 365 secs
lola: 52168647 markings, 227005270 edges, 110681 markings/sec, 370 secs
lola: 52742143 markings, 229607476 edges, 114699 markings/sec, 375 secs
lola: 53307715 markings, 232194630 edges, 113114 markings/sec, 380 secs
lola: 53875590 markings, 234774332 edges, 113575 markings/sec, 385 secs
lola: 54441667 markings, 237360515 edges, 113215 markings/sec, 390 secs
lola: 54993468 markings, 239874920 edges, 110360 markings/sec, 395 secs
lola: 55511809 markings, 242240559 edges, 103668 markings/sec, 400 secs
lola: 56074138 markings, 244799065 edges, 112466 markings/sec, 405 secs
lola: 56641847 markings, 247380828 edges, 113542 markings/sec, 410 secs
lola: 57228118 markings, 250042407 edges, 117254 markings/sec, 415 secs
lola: 57813187 markings, 252696173 edges, 117014 markings/sec, 420 secs
lola: 58394660 markings, 255345986 edges, 116295 markings/sec, 425 secs
lola: 58980676 markings, 257998952 edges, 117203 markings/sec, 430 secs
lola: 59559326 markings, 260628835 edges, 115730 markings/sec, 435 secs
lola: 60129059 markings, 263230952 edges, 113947 markings/sec, 440 secs
lola: 60704518 markings, 265853210 edges, 115092 markings/sec, 445 secs
lola: 61278063 markings, 268476417 edges, 114709 markings/sec, 450 secs
lola: 61855923 markings, 271098382 edges, 115572 markings/sec, 455 secs
lola: 62417088 markings, 273676336 edges, 112233 markings/sec, 460 secs
lola: 62979407 markings, 276258038 edges, 112464 markings/sec, 465 secs
lola: 63547722 markings, 278853325 edges, 113663 markings/sec, 470 secs
lola: 64113866 markings, 281445471 edges, 113229 markings/sec, 475 secs
lola: 64692575 markings, 284057402 edges, 115742 markings/sec, 480 secs
lola: 65251757 markings, 286622122 edges, 111836 markings/sec, 485 secs
lola: 65819331 markings, 289207561 edges, 113515 markings/sec, 490 secs
lola: 66385675 markings, 291789109 edges, 113269 markings/sec, 495 secs
lola: 66945705 markings, 294349327 edges, 112006 markings/sec, 500 secs
lola: 67502592 markings, 296903861 edges, 111377 markings/sec, 505 secs
lola: 68057608 markings, 299457588 edges, 111003 markings/sec, 510 secs
lola: 68604565 markings, 301984627 edges, 109391 markings/sec, 515 secs
lola: 69155264 markings, 304517898 edges, 110140 markings/sec, 520 secs
lola: 69714668 markings, 307068403 edges, 111881 markings/sec, 525 secs
lola: 70269915 markings, 309604586 edges, 111049 markings/sec, 530 secs
lola: 70823513 markings, 312139666 edges, 110720 markings/sec, 535 secs
lola: 71379646 markings, 314684496 edges, 111227 markings/sec, 540 secs
lola: 71930308 markings, 317212045 edges, 110132 markings/sec, 545 secs
lola: 72483942 markings, 319746050 edges, 110727 markings/sec, 550 secs
lola: 73013185 markings, 322164121 edges, 105849 markings/sec, 555 secs
lola: 73524359 markings, 324500796 edges, 102235 markings/sec, 560 secs
lola: 74022677 markings, 326792663 edges, 99664 markings/sec, 565 secs
lola: 74506169 markings, 329011528 edges, 96698 markings/sec, 570 secs
lola: 75013460 markings, 331325836 edges, 101458 markings/sec, 575 secs
lola: 75524367 markings, 333679417 edges, 102181 markings/sec, 580 secs
lola: 76007164 markings, 335886523 edges, 96559 markings/sec, 585 secs
lola: 76507917 markings, 338189923 edges, 100151 markings/sec, 590 secs
lola: 77022295 markings, 340562826 edges, 102876 markings/sec, 595 secs
lola: 77535587 markings, 342924860 edges, 102658 markings/sec, 600 secs
lola: 78051634 markings, 345287495 edges, 103209 markings/sec, 605 secs
lola: 78559153 markings, 347636700 edges, 101504 markings/sec, 610 secs
lola: 79100135 markings, 350123963 edges, 108196 markings/sec, 615 secs
lola: 79635346 markings, 352596530 edges, 107042 markings/sec, 620 secs
lola: 80169275 markings, 355059370 edges, 106786 markings/sec, 625 secs
lola: 80707451 markings, 357537494 edges, 107635 markings/sec, 630 secs
lola: 81240077 markings, 359995358 edges, 106525 markings/sec, 635 secs
lola: 81778937 markings, 362466064 edges, 107772 markings/sec, 640 secs
lola: 82313834 markings, 364932140 edges, 106979 markings/sec, 645 secs
lola: 82857231 markings, 367414943 edges, 108679 markings/sec, 650 secs
lola: 83391461 markings, 369876549 edges, 106846 markings/sec, 655 secs
lola: 83732331 markings, 371446068 edges, 68174 markings/sec, 660 secs
lola: 83749791 markings, 371529186 edges, 3492 markings/sec, 665 secs
lola: 83782632 markings, 371680977 edges, 6568 markings/sec, 670 secs
lola: 83790342 markings, 371718118 edges, 1542 markings/sec, 675 secs
lola: 83794247 markings, 371736966 edges, 781 markings/sec, 680 secs
lola: Child process aborted or communication problem between parent and child process

FORMULA RobotManipulation-PT-10000-LTLCardinality-6 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: RESULT
lola:
SUMMARY: yes no yes no no no unknown no yes no no no no no no no
lola:
preliminary result: yes no yes no no no unknown no yes no no no no no no no
lola: memory consumption: 17120 KB
lola: time consumption: 1016 seconds

BK_STOP 1528117180523

--------------------
content from stderr:

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="RobotManipulation-PT-10000"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="lola"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

tar xzf /home/mcc/BenchKit/INPUTS/RobotManipulation-PT-10000.tgz
mv RobotManipulation-PT-10000 execution
cd execution
pwd
ls -lh

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3637"
echo " Executing tool lola"
echo " Input is RobotManipulation-PT-10000, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r208-smll-152732257800489"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;