About the Execution of M4M.full for ResAllocation-PT-R003C020
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
13189.790 | 724135.00 | 1485125.00 | 2864.70 | ???????????????? | 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 304K
-rw-r--r-- 1 mcc users 3.7K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 20K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 16K 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 6.3K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.3K May 26 09:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 7.5K May 26 09:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K May 26 09:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.3K May 26 09:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 20K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 116 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 354 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.5K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 22K 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 9 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 138K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool mcc4mcc-full
Input is ResAllocation-PT-R003C020, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r142-qhx2-152673584000364
=====================================================================
--------------------
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 ResAllocation-PT-R003C020-ReachabilityFireability-00
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-01
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-02
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-03
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-04
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-05
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-06
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-07
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-08
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-09
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-10
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-11
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-12
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-13
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-14
FORMULA_NAME ResAllocation-PT-R003C020-ReachabilityFireability-15
=== Now, execution of the tool begins
BK_START 1527971669478
BK_STOP 1527972393613
--------------------
content from stderr:
Prefix is 65b80f64.
Reading known information in /usr/share/mcc4mcc/65b80f64-known.json.
Reading learned information in /usr/share/mcc4mcc/65b80f64-learned.json.
Reading value translations in /usr/share/mcc4mcc/65b80f64-values.json.
Using directory /home/mcc/execution for input, as it contains a model.pnml file.
Using ResAllocation-PT-R003C020 as instance name.
Using ResAllocation as model name.
Using algorithm or tool decision-tree.
Model characteristics are: {'Examination': 'ReachabilityFireability', 'Place/Transition': True, 'Colored': False, 'Relative-Time': 1, 'Relative-Memory': 1, 'Ordinary': True, 'Simple Free Choice': False, 'Extended Free Choice': False, 'State Machine': False, 'Marked Graph': False, 'Connected': True, 'Strongly Connected': True, 'Source Place': False, 'Sink Place': False, 'Source Transition': False, 'Sink Transition': False, 'Loop Free': True, 'Conservative': False, 'Sub-Conservative': False, 'Nested Units': False, 'Safe': True, 'Deadlock': True, 'Reversible': False, 'Quasi Live': True, 'Live': False}.
Known tools are: [{'Time': 182, 'Memory': 111.85, 'Tool': 'lola'}, {'Time': 316, 'Memory': 111.27, 'Tool': 'lola'}, {'Time': 2441, 'Memory': 2206.86, 'Tool': 'marcie'}, {'Time': 2494, 'Memory': 2206.44, 'Tool': 'marcie'}, {'Time': 5187, 'Memory': 240.84, 'Tool': 'gspn'}, {'Time': 7606, 'Memory': 261.94, 'Tool': 'gspn'}, {'Time': 8642, 'Memory': 445.1, 'Tool': 'itstools'}, {'Time': 8862, 'Memory': 503.32, 'Tool': 'itstools'}].
Learned tools are: [{'Tool': 'lola'}].
Learned tool lola is 1.0x far from the best tool lola.
ReachabilityFireability lola ResAllocation-PT-R003C020...
Time: 3600 - MCC
----- Start make prepare stdout -----
----- Start make prepare stderr -----
===========================================================================================
ResAllocation-PT-R003C020: translating PT Petri net model.pnml into LoLA format
===========================================================================================
translating PT Petri net complete
checking for too many tokens
===========================================================================================
ResAllocation-PT-R003C020: translating PT formula ReachabilityFireability into LoLA format
===========================================================================================
translating formula complete
touch formulae;
----- Start make result stdout -----
----- Start make result stderr -----
ReachabilityFireability @ ResAllocation-PT-R003C020 @ 3538 seconds
Makefile:222: recipe for target 'verify' failed
make: [verify] Error 134 (ignored)
----- Start make result stderr -----
----- Start make result stdout -----
lola: LoLA will run for 3538 seconds at most (--timelimit)
lola: NET
lola: reading net from model.pnml.lola
lola: finished parsing
lola: closed net file model.pnml.lola
lola: 200/65536 symbol table entries, 0 collisions
lola: preprocessing...
lola: finding significant places
lola: 120 places, 80 transitions, 60 significant places
lola: computing forward-conflicting sets
lola: computing back-conflicting sets
lola: 140 transition conflict sets
lola: TASK
lola: reading formula from ResAllocation-PT-R003C020-ReachabilityFireability.task
lola: A (G ((FIREABLE(t_4_3) OR FIREABLE(t_2_2) OR FIREABLE(t_0_0) OR FIREABLE(t_3_3) OR FIREABLE(t_7_2) OR FIREABLE(t_0_1) OR NOT FIREABLE(t_19_2) OR FIREABLE(t_3_2)))) : A (G (((NOT FIREABLE(t_2_1) AND NOT FIREABLE(t_8_1)) OR (NOT FIREABLE(t_2_3) AND FIREABLE(t_7_2)) OR FIREABLE(t_7_3) OR (FIREABLE(t_5_0) AND (FIREABLE(t_12_1) OR FIREABLE(t_13_2)))))) : E (F ((FIREABLE(t_17_2) AND FIREABLE(t_2_3)))) : E (F (((FIREABLE(t_4_3) OR FIREABLE(t_1_1)) AND (FIREABLE(t_18_2) OR FIREABLE(t_8_3)) AND FIREABLE(t_7_0) AND FIREABLE(t_8_0) AND FIREABLE(t_5_2) AND NOT FIREABLE(t_13_0) AND (NOT FIREABLE(t_9_0) OR NOT FIREABLE(t_15_0))))) : E (F ((FIREABLE(t_2_0) AND FIREABLE(t_9_0) AND NOT FIREABLE(t_9_1) AND ((FIREABLE(t_18_3) AND FIREABLE(t_6_1)) OR NOT FIREABLE(t_10_3)) AND FIREABLE(t_10_2) AND FIREABLE(t_1_3) AND (FIREABLE(t_2_2) OR FIREABLE(t_8_3)) AND FIREABLE(t_11_2)))) : E (F ((FIREABLE(t_9_1) AND NOT FIREABLE(t_5_1) AND FIREABLE(t_11_2) AND FIREABLE(t_19_2)))) : A (G (())) : A (G ((FIREABLE(t_0_1) OR FIREABLE(t_16_2) OR (FIREABLE(t_18_0) AND FIREABLE(t_19_0)) OR (NOT FIREABLE(t_6_3) AND NOT FIREABLE(t_3_0)) OR (NOT FIREABLE(t_18_1) AND NOT FIREABLE(t_11_0)) OR FIREABLE(t_17_1)))) : E (F ((NOT FIREABLE(t_13_3) AND NOT FIREABLE(t_15_3) AND FIREABLE(t_19_1) AND NOT FIREABLE(t_4_0)))) : A (G (((FIREABLE(t_11_0) AND FIREABLE(t_17_3) AND FIREABLE(t_4_1)) OR ((FIREABLE(t_5_3) OR FIREABLE(t_4_1)) AND (FIREABLE(t_16_3) OR FIREABLE(t_14_0))) OR NOT FIREABLE(t_7_0) OR NOT FIREABLE(t_10_3) OR NOT FIREABLE(t_5_3)))) : E (F ((FIREABLE(t_10_2) AND FIREABLE(t_2_2) AND FIREABLE(t_15_2) AND FIREABLE(t_15_3)))) : E (F ((FIREABLE(t_2_2) AND FIREABLE(t_3_0) AND (NOT FIREABLE(t_3_3) OR NOT FIREABLE(t_2_0) OR FIREABLE(t_1_3))))) : E (F (((FIREABLE(t_12_2) OR FIREABLE(t_12_0)) AND (FIREABLE(t_11_2) OR FIREABLE(t_13_0)) AND FIREABLE(t_4_3) AND FIREABLE(t_13_1) AND FIREABLE(t_12_2) AND FIREABLE(t_5_0) AND NOT FIREABLE(t_16_0) AND NOT FIREABLE(t_6_0) AND (FIREABLE(t_11_1) OR FIREABLE(t_12_2) OR FIREABLE(t_10_0) OR FIREABLE(t_6_2))))) : E (F ((FIREABLE(t_17_0) AND FIREABLE(t_9_2)))) : E (F ((FIREABLE(t_16_2) AND FIREABLE(t_7_1)))) : E (F ((FIREABLE(t_6_3) AND FIREABLE(t_15_1) AND NOT FIREABLE(t_10_1))))
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 221 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G ((FIREABLE(t_4_3) OR FIREABLE(t_2_2) OR FIREABLE(t_0_0) OR FIREABLE(t_3_3) OR FIREABLE(t_7_2) OR FIREABLE(t_0_1) OR NOT FIREABLE(t_19_2) OR FIREABLE(t_3_2))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: 8 markings, 7 edges
lola: state equation: Generated DNF with 1080 literals and 108 conjunctive subformulas
lola: ========================================
lola: subprocess 1 will run for 235 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (((NOT FIREABLE(t_2_1) AND NOT FIREABLE(t_8_1)) OR (NOT FIREABLE(t_2_3) AND FIREABLE(t_7_2)) OR FIREABLE(t_7_3) OR (FIREABLE(t_5_0) AND (FIREABLE(t_12_1) OR FIREABLE(t_13_2))))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: 5 markings, 4 edges
lola: ========================================
lola: subprocess 2 will run for 252 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((FIREABLE(t_17_2) AND FIREABLE(t_2_3))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: state equation: Generated DNF with 4 literals and 1 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 5 markings, 4 edges
lola: ========================================
lola: subprocess 3 will run for 272 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (((FIREABLE(t_4_3) OR FIREABLE(t_1_1)) AND (FIREABLE(t_18_2) OR FIREABLE(t_8_3)) AND FIREABLE(t_7_0) AND FIREABLE(t_8_0) AND FIREABLE(t_5_2) AND NOT FIREABLE(t_13_0) AND (NOT FIREABLE(t_9_0) OR NOT FIREABLE(t_15_0)))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: state equation: Generated DNF with 96 literals and 8 conjunctive subformulas
lola: state equation: write sara problem file to ResAllocation-PT-R003C020-ReachabilityFireability-3.sara
lola: state equation: calling and running sara
sara: try reading problem file ResAllocation-PT-R003C020-ReachabilityFireability-3.sara.
sara: place or transition ordering is non-deterministic
lola: state equation: solution impossible
lola: SUBRESULT
lola: result: no
lola: produced by: state equation
lola: The predicate is unreachable.
lola: ========================================
lola: subprocess 4 will run for 294 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((FIREABLE(t_2_0) AND FIREABLE(t_9_0) AND NOT FIREABLE(t_9_1) AND ((FIREABLE(t_18_3) AND FIREABLE(t_6_1)) OR NOT FIREABLE(t_10_3)) AND FIREABLE(t_10_2) AND FIREABLE(t_1_3) AND (FIREABLE(t_2_2) OR FIREABLE(t_8_3)) AND FIREABLE(t_11_2))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: state equation: Generated DNF with 198 literals and 12 conjunctive subformulas
lola: state equation: write sara problem file to ResAllocation-PT-R003C020-ReachabilityFireability-4.sara
lola: state equation: calling and running sara
sara: try reading problem file ResAllocation-PT-R003C020-ReachabilityFireability-4.sara.
sara: place or transition ordering is non-deterministic
lola: state equation: solution impossible
lola: SUBRESULT
lola: result: no
lola: produced by: state equation
lola: The predicate is unreachable.
lola: ========================================
lola: subprocess 5 will run for 321 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((FIREABLE(t_9_1) AND NOT FIREABLE(t_5_1) AND FIREABLE(t_11_2) AND FIREABLE(t_19_2))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: state equation: Generated DNF with 30 literals and 3 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 5 markings, 4 edges
lola: state equation: write sara problem file to ResAllocation-PT-R003C020-ReachabilityFireability-5.sara
lola: ========================================
lola: subprocess 6 will run for 353 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (()))
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: TRUE
lola: processed formula length: 4
lola: 3 rewrites
lola: formula mentions 0 of 120 places; total mentions: 0
lola: closed formula file ResAllocation-PT-R003C020-ReachabilityFireability.task
lola: processed formula with 0 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: ========================================
lola: subprocess 7 will run for 393 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G ((FIREABLE(t_0_1) OR FIREABLE(t_16_2) OR (FIREABLE(t_18_0) AND FIREABLE(t_19_0)) OR (NOT FIREABLE(t_6_3) AND NOT FIREABLE(t_3_0)) OR (NOT FIREABLE(t_18_1) AND NOT FIREABLE(t_11_0)) OR FIREABLE(t_17_1))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: 5 markings, 4 edges
lola: ========================================
lola: subprocess 8 will run for 442 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((NOT FIREABLE(t_13_3) AND NOT FIREABLE(t_15_3) AND FIREABLE(t_19_1) AND NOT FIREABLE(t_4_0))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: state equation: Generated DNF with 48 literals and 8 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 6 markings, 5 edges
lola: state equation: write sara problem file to ResAllocation-PT-R003C020-ReachabilityFireability-8.sara
lola: ========================================
lola: subprocess 9 will run for 505 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (((FIREABLE(t_11_0) AND FIREABLE(t_17_3) AND FIREABLE(t_4_1)) OR ((FIREABLE(t_5_3) OR FIREABLE(t_4_1)) AND (FIREABLE(t_16_3) OR FIREABLE(t_14_0))) OR NOT FIREABLE(t_7_0) OR NOT FIREABLE(t_10_3) OR NOT FIREABLE(t_5_3))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: state equation: Generated DNF with 84 literals and 12 conjunctive subformulas
lola: state equation: write sara problem file to ResAllocation-PT-R003C020-ReachabilityFireability-9.sara
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 14 markings, 14 edges
lola: ========================================
lola: subprocess 10 will run for 589 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((FIREABLE(t_10_2) AND FIREABLE(t_2_2) AND FIREABLE(t_15_2) AND FIREABLE(t_15_3))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: state equation: Generated DNF with 11 literals and 1 conjunctive subformulas
lola: state equation: write sara problem file to ResAllocation-PT-R003C020-ReachabilityFireability-10.sara
lola: state equation: calling and running sara
sara: try reading problem file ResAllocation-PT-R003C020-ReachabilityFireability-10.sara.
sara: place or transition ordering is non-deterministic
lola: state equation: solution impossible
lola: SUBRESULT
lola: result: no
lola: produced by: state equation
lola: The predicate is unreachable.
lola: ========================================
lola: subprocess 11 will run for 707 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((FIREABLE(t_2_2) AND FIREABLE(t_3_0) AND (NOT FIREABLE(t_3_3) OR NOT FIREABLE(t_2_0) OR FIREABLE(t_1_3)))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 8 bytes per marking, with 4 unused bits
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: state equation: Generated DNF with 21 literals and 4 conjunctive subformulas
lola: state equation: write sara problem file to ResAllocation-PT-R003C020-ReachabilityFireability-11.sara
lola: state equation: calling and running sara
sara: try reading problem file ResAllocation-PT-R003C020-ReachabilityFireability-11.sara.
sara: place or transition ordering is non-deterministic
sara: warning, failure of lp_solve (at job 47)
lola: sara is running 0 secs || 1275251 markings, 1437954 edges, 255050 markings/sec, 0 secs
lola: sara is running 5 secs || 2541935 markings, 3140591 edges, 253337 markings/sec, 5 secs
lola: sara is running 10 secs || 3716563 markings, 4873829 edges, 234926 markings/sec, 10 secs
lola: sara is running 15 secs || 4823571 markings, 6724260 edges, 221402 markings/sec, 15 secs
lola: sara is running 20 secs || 6130472 markings, 8261630 edges, 261380 markings/sec, 20 secs
lola: sara is running 25 secs || 7373617 markings, 9973270 edges, 248629 markings/sec, 25 secs
lola: sara is running 30 secs || 8567210 markings, 11807474 edges, 238719 markings/sec, 30 secs
lola: sara is running 35 secs || 9724545 markings, 13525215 edges, 231467 markings/sec, 35 secs
lola: sara is running 40 secs || 11076416 markings, 15002197 edges, 270374 markings/sec, 40 secs
lola: sara is running 45 secs || 12463758 markings, 16632349 edges, 277468 markings/sec, 45 secs
lola: sara is running 50 secs || 13786362 markings, 18300009 edges, 264521 markings/sec, 50 secs
lola: sara is running 55 secs || 15052103 markings, 19960297 edges, 253148 markings/sec, 55 secs
lola: sara is running 60 secs || 16189165 markings, 21619177 edges, 227412 markings/sec, 60 secs
lola: sara is running 65 secs || 17562498 markings, 23346858 edges, 274667 markings/sec, 65 secs
lola: sara is running 70 secs || 18842426 markings, 25023109 edges, 255986 markings/sec, 70 secs
lola: sara is running 75 secs || 20219702 markings, 26599231 edges, 275455 markings/sec, 75 secs
lola: sara is running 80 secs || 21584956 markings, 28148576 edges, 273051 markings/sec, 80 secs
lola: sara is running 85 secs || 22943495 markings, 29801068 edges, 271708 markings/sec, 85 secs
lola: sara is running 90 secs || 24378101 markings, 31481466 edges, 286921 markings/sec, 90 secs
lola: sara is running 95 secs || 25709158 markings, 33263653 edges, 266211 markings/sec, 95 secs
lola: sara is running 100 secs || 26944011 markings, 35323549 edges, 246971 markings/sec, 100 secs
lola: sara is running 105 secs || 28138170 markings, 37425237 edges, 238832 markings/sec, 105 secs
lola: sara is running 110 secs || 29292369 markings, 39492138 edges, 230840 markings/sec, 110 secs
lola: sara is running 115 secs || 30308623 markings, 41799105 edges, 203251 markings/sec, 115 secs
lola: sara is running 120 secs || 31141183 markings, 44226149 edges, 166512 markings/sec, 120 secs
lola: sara is running 125 secs || 31965154 markings, 46675556 edges, 164794 markings/sec, 125 secs
lola: sara is running 130 secs || 32784247 markings, 49137038 edges, 163819 markings/sec, 130 secs
lola: sara is running 135 secs || 33578291 markings, 51578959 edges, 158809 markings/sec, 135 secs
lola: sara is running 140 secs || 34393754 markings, 54092587 edges, 163093 markings/sec, 140 secs
lola: sara is running 145 secs || 35211677 markings, 56472231 edges, 163585 markings/sec, 145 secs
lola: sara is running 150 secs || 36042178 markings, 58935431 edges, 166100 markings/sec, 150 secs
lola: sara is running 155 secs || 36844183 markings, 61346988 edges, 160401 markings/sec, 155 secs
lola: sara is running 160 secs || 37620602 markings, 63722302 edges, 155284 markings/sec, 160 secs
lola: sara is running 165 secs || 38496775 markings, 66055535 edges, 175235 markings/sec, 165 secs
lola: sara is running 170 secs || 39707027 markings, 67921968 edges, 242050 markings/sec, 170 secs
lola: sara is running 175 secs || 40928916 markings, 69788888 edges, 244378 markings/sec, 175 secs
lola: sara is running 180 secs || 42183967 markings, 71463722 edges, 251010 markings/sec, 180 secs
lola: sara is running 185 secs || 43390633 markings, 73239778 edges, 241333 markings/sec, 185 secs
lola: sara is running 190 secs || 44526900 markings, 74956458 edges, 227253 markings/sec, 190 secs
lola: sara is running 195 secs || 45505131 markings, 76642665 edges, 195646 markings/sec, 195 secs
lola: sara is running 200 secs || 46354462 markings, 78275705 edges, 169866 markings/sec, 200 secs
lola: sara is running 205 secs || 47370712 markings, 80283258 edges, 203250 markings/sec, 205 secs
lola: sara is running 210 secs || 48348297 markings, 82325743 edges, 195517 markings/sec, 210 secs
lola: sara is running 215 secs || 49193290 markings, 84612464 edges, 168999 markings/sec, 215 secs
lola: sara is running 220 secs || 49980645 markings, 87082735 edges, 157471 markings/sec, 220 secs
lola: sara is running 225 secs || 50688542 markings, 89386904 edges, 141579 markings/sec, 225 secs
lola: sara is running 230 secs || 51403685 markings, 91786306 edges, 143029 markings/sec, 230 secs
lola: sara is running 235 secs || 52117564 markings, 94213073 edges, 142776 markings/sec, 235 secs
lola: sara is running 240 secs || 52895712 markings, 96612738 edges, 155630 markings/sec, 240 secs
lola: sara is running 245 secs || 53653082 markings, 99061024 edges, 151474 markings/sec, 245 secs
lola: sara is running 250 secs || 54368858 markings, 101420439 edges, 143155 markings/sec, 250 secs
lola: sara is running 255 secs || 55102213 markings, 103881998 edges, 146671 markings/sec, 255 secs
lola: sara is running 260 secs || 56470197 markings, 105652990 edges, 273597 markings/sec, 260 secs
lola: sara is running 265 secs || 57842826 markings, 107528542 edges, 274526 markings/sec, 265 secs
lola: sara is running 270 secs || 58768477 markings, 110040588 edges, 185130 markings/sec, 270 secs
lola: sara is running 275 secs || 59655914 markings, 112465621 edges, 177487 markings/sec, 275 secs
lola: sara is running 280 secs || 60534794 markings, 114875508 edges, 175776 markings/sec, 280 secs
lola: sara is running 285 secs || 61411183 markings, 117304087 edges, 175278 markings/sec, 285 secs
lola: sara is running 290 secs || 62260932 markings, 119670111 edges, 169950 markings/sec, 290 secs
lola: sara is running 295 secs || 63295570 markings, 121885824 edges, 206928 markings/sec, 295 secs
lola: sara is running 300 secs || 64677940 markings, 123591605 edges, 276474 markings/sec, 300 secs
lola: sara is running 305 secs || 65583719 markings, 125992822 edges, 181156 markings/sec, 305 secs
lola: sara is running 310 secs || 66436016 markings, 128388877 edges, 170459 markings/sec, 310 secs
lola: sara is running 315 secs || 67270398 markings, 130761045 edges, 166876 markings/sec, 315 secs
lola: sara is running 320 secs || 68096252 markings, 133132748 edges, 165171 markings/sec, 320 secs
lola: sara is running 325 secs || 68955288 markings, 135458696 edges, 171807 markings/sec, 325 secs
lola: sara is running 330 secs || 70172210 markings, 137121571 edges, 243384 markings/sec, 330 secs
lola: sara is running 335 secs || 71468611 markings, 138892337 edges, 259280 markings/sec, 335 secs
lola: sara is running 340 secs || 72493452 markings, 140778191 edges, 204968 markings/sec, 340 secs
lola: sara is running 345 secs || 73283506 markings, 142986968 edges, 158011 markings/sec, 345 secs
lola: sara is running 350 secs || 74140153 markings, 145441301 edges, 171329 markings/sec, 350 secs
lola: sara is running 355 secs || 74948165 markings, 147770803 edges, 161602 markings/sec, 355 secs
lola: sara is running 360 secs || 75752291 markings, 150071204 edges, 160825 markings/sec, 360 secs
lola: sara is running 365 secs || 76552083 markings, 152413387 edges, 159958 markings/sec, 365 secs
lola: sara is running 370 secs || 77346361 markings, 154776119 edges, 158856 markings/sec, 370 secs
lola: sara is running 375 secs || 78146553 markings, 157165294 edges, 160038 markings/sec, 375 secs
lola: sara is running 380 secs || 78955765 markings, 159495739 edges, 161842 markings/sec, 380 secs
lola: sara is running 385 secs || 79822846 markings, 161713006 edges, 173416 markings/sec, 385 secs
lola: sara is running 390 secs || 80981575 markings, 163531808 edges, 231746 markings/sec, 390 secs
lola: sara is running 395 secs || 82135189 markings, 165391465 edges, 230723 markings/sec, 395 secs
lola: sara is running 400 secs || 83252650 markings, 167260249 edges, 223492 markings/sec, 400 secs
lola: sara is running 405 secs || 84434689 markings, 169094808 edges, 236408 markings/sec, 405 secs
lola: sara is running 410 secs || 85527712 markings, 171055837 edges, 218605 markings/sec, 410 secs
lola: sara is running 415 secs || 86377661 markings, 173490913 edges, 169990 markings/sec, 415 secs
lola: sara is running 420 secs || 87181462 markings, 175816957 edges, 160760 markings/sec, 420 secs
lola: sara is running 425 secs || 87986252 markings, 178170037 edges, 160958 markings/sec, 425 secs
lola: sara is running 430 secs || 88756867 markings, 180442824 edges, 154123 markings/sec, 430 secs
lola: sara is running 435 secs || 89552267 markings, 182841475 edges, 159080 markings/sec, 435 secs
lola: sara is running 440 secs || 90307406 markings, 185134719 edges, 151028 markings/sec, 440 secs
lola: sara is running 445 secs || 91082591 markings, 187498328 edges, 155037 markings/sec, 445 secs
lola: sara is running 450 secs || 91855455 markings, 189857674 edges, 154573 markings/sec, 450 secs
lola: sara is running 455 secs || 92560257 markings, 192042614 edges, 140960 markings/sec, 455 secs
lola: sara is running 460 secs || 93241344 markings, 194172188 edges, 136217 markings/sec, 460 secs
lola: sara is running 465 secs || 93916810 markings, 196316705 edges, 135093 markings/sec, 465 secs
lola: sara is running 470 secs || 94628326 markings, 198611500 edges, 142303 markings/sec, 470 secs
lola: sara is running 475 secs || 95288849 markings, 200728749 edges, 132105 markings/sec, 475 secs
lola: sara is running 480 secs || 96011766 markings, 203030468 edges, 144583 markings/sec, 480 secs
lola: sara is running 485 secs || 96755001 markings, 205346295 edges, 148647 markings/sec, 485 secs
lola: sara is running 490 secs || 97506537 markings, 207621386 edges, 150307 markings/sec, 490 secs
lola: sara is running 495 secs || 98217997 markings, 209899137 edges, 142292 markings/sec, 495 secs
lola: sara is running 500 secs || 99149286 markings, 211857565 edges, 186258 markings/sec, 500 secs
lola: sara is running 505 secs || 100461301 markings, 213633818 edges, 262403 markings/sec, 505 secs
lola: sara is running 510 secs || 101429194 markings, 215904320 edges, 193579 markings/sec, 510 secs
lola: sara is running 515 secs || 102340836 markings, 218043717 edges, 182328 markings/sec, 515 secs
lola: sara is running 520 secs || 103344926 markings, 220191789 edges, 200818 markings/sec, 520 secs
lola: sara is running 525 secs || 104334498 markings, 222325369 edges, 197914 markings/sec, 525 secs
lola: sara is running 530 secs || 105312943 markings, 224443164 edges, 195689 markings/sec, 530 secs
lola: sara is running 535 secs || 106263784 markings, 226503325 edges, 190168 markings/sec, 535 secs
lola: sara is running 540 secs || 107260784 markings, 228637338 edges, 199400 markings/sec, 540 secs
lola: sara is running 545 secs || 108350314 markings, 230655632 edges, 217906 markings/sec, 545 secs
lola: sara is running 550 secs || 109230072 markings, 232967083 edges, 175952 markings/sec, 550 secs
lola: sara is running 555 secs || 110194080 markings, 235065928 edges, 192802 markings/sec, 555 secs
lola: sara is running 560 secs || 111134042 markings, 237133561 edges, 187992 markings/sec, 560 secs
lola: sara is running 565 secs || 112087792 markings, 239223654 edges, 190750 markings/sec, 565 secs
lola: sara is running 570 secs || 113045058 markings, 241313983 edges, 191453 markings/sec, 570 secs
lola: sara is running 575 secs || 114160096 markings, 243182650 edges, 223008 markings/sec, 575 secs
lola: sara is running 580 secs || 115375621 markings, 244990489 edges, 243105 markings/sec, 580 secs
lola: sara is running 585 secs || 116381363 markings, 247117467 edges, 201148 markings/sec, 585 secs
lola: sara is running 590 secs || 117202730 markings, 249388428 edges, 164273 markings/sec, 590 secs
lola: sara is running 595 secs || 118130498 markings, 251525639 edges, 185554 markings/sec, 595 secs
lola: sara is running 600 secs || 119066244 markings, 253589579 edges, 187149 markings/sec, 600 secs
lola: sara is running 605 secs || 119990781 markings, 255659738 edges, 184907 markings/sec, 605 secs
lola: sara is running 610 secs || 120922151 markings, 257740504 edges, 186274 markings/sec, 610 secs
lola: sara is running 615 secs || 121823415 markings, 259772164 edges, 180253 markings/sec, 615 secs
lola: sara is running 620 secs || 122733200 markings, 261818546 edges, 181957 markings/sec, 620 secs
lola: sara is running 625 secs || 123639222 markings, 263850758 edges, 181204 markings/sec, 625 secs
lola: sara is running 630 secs || 124555002 markings, 265908759 edges, 183156 markings/sec, 630 secs
lola: sara is running 635 secs || 125432294 markings, 267916831 edges, 175458 markings/sec, 635 secs
lola: sara is running 640 secs || 126715527 markings, 269468425 edges, 256647 markings/sec, 640 secs
lola: sara is running 645 secs || 127793342 markings, 271124571 edges, 215563 markings/sec, 645 secs
lola: sara is running 650 secs || 128706536 markings, 272691320 edges, 182639 markings/sec, 650 secs
lola: sara is running 655 secs || 129501355 markings, 274089775 edges, 158964 markings/sec, 655 secs
lola: sara is running 660 secs || 130329798 markings, 275960011 edges, 165689 markings/sec, 660 secs
lola: sara is running 665 secs || 131114909 markings, 277754953 edges, 157022 markings/sec, 665 secs
lola: sara is running 670 secs || 131783737 markings, 279351789 edges, 133766 markings/sec, 670 secs
lola: sara is running 675 secs || 132524175 markings, 281037216 edges, 148088 markings/sec, 675 secs
lola: sara is running 680 secs || 133408809 markings, 283131023 edges, 176927 markings/sec, 680 secs
lola: sara is running 685 secs || 134271003 markings, 285198449 edges, 172439 markings/sec, 685 secs
lola: sara is running 690 secs || 135118295 markings, 287241364 edges, 169458 markings/sec, 690 secs
lola: sara is running 695 secs || 135946247 markings, 289302027 edges, 165590 markings/sec, 695 secs
lola: sara is running 700 secs || 136805447 markings, 291240277 edges, 171840 markings/sec, 700 secs
lola: local time limit reached - aborting
lola: Child process aborted or communication problem between parent and child process
terminate called after throwing an instance of 'std::runtime_error'
what(): parse error at position 0: unexpected character, last read: '\ufffd'
Aborted (core dumped)
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-0 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-1 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-2 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-3 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-4 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-5 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-6 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-7 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-8 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-9 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-10 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-11 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-12 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-13 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-14 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA ResAllocation-PT-R003C020-ReachabilityFireability-15 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
----- Kill lola and sara stdout -----
----- Kill lola and sara stderr -----
----- Finished stdout -----
----- Finished 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="ResAllocation-PT-R003C020"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="mcc4mcc-full"
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/ResAllocation-PT-R003C020.tgz
mv ResAllocation-PT-R003C020 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 mcc4mcc-full"
echo " Input is ResAllocation-PT-R003C020, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r142-qhx2-152673584000364"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '
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 ;