Trace number 1517906

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
march_nn nnUNSAT 12.6891 12.6928

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S1369720750-015.cnf
MD5SUMa64f61e36a26258a4e57b34bdb756185
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.4644
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 8 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1522 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.513
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 179 duplicate clauses
0.00/0.01	c resolvent_look() :: found 102 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1624 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 360 variabels and 1624 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1624 / 360 ) = 4.51
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c number of free variables = 359
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/999) NodeCount: 23
0.00/0.02	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/999) NodeCount: 216
0.00/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 1234
0.39/0.40	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 4223
1.59/1.61	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 9544
4.09/4.19	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 15757
7.59/7.62	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 20461
10.49/10.56	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 22717
11.99/12.01	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 23484
12.49/12.51	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/999) NodeCount: 23714
12.59/12.65	c |----------------------------------------------------------------|
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c |****************************************************************| (10/999) NodeCount: 23773
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c |****************************************************************| (11/999) NodeCount: 23779
12.59/12.69	c |----------------------------------------------------------------|
c |
12.59/12.69	c
12.59/12.69	c main():: nodeCount: 23779
12.59/12.69	c main():: dead ends in main: 508
12.59/12.69	c main():: lookAheadCount: 1816651
12.59/12.69	c main():: unitResolveCount: 375327
12.59/12.69	c main():: time=12.680000
12.59/12.69	c main():: necessary_assignments: 4841
12.59/12.69	c main():: bin_sat: 0, bin_unsat 0
12.59/12.69	c main():: doublelook: #: 98049, succes #: 71186
12.59/12.69	c main():: doublelook: overall 5.564 of all possible doublelooks executed
12.59/12.69	c main():: doublelook: succesrate: 72.602, average DL_trigger: 48.293
12.59/12.69	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517906-1238292723/watcher-1517906-1238292723 -o /tmp/evaluation-result-1517906-1238292723/solver-1517906-1238292723 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517906-1238292723.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 575
/proc/meminfo: memFree=1158016/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=972 CPUtime=0
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 1101938231 995328 118 1992294400 134512640 135197250 4294956240 18446744073709551615 134702424 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 243 118 67 167 0 74 0

[startup+0.00738301 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 575
/proc/meminfo: memFree=1158016/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=972 CPUtime=0
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 148 0 0 0 0 0 0 0 18 0 1 0 1101938231 995328 131 1992294400 134512640 135197250 4294956240 18446744073709551615 134618960 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 243 131 80 167 0 74 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 972

[startup+0.101392 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 575
/proc/meminfo: memFree=1158016/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=1508 CPUtime=0.09
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 245 0 0 0 9 0 0 0 18 0 1 0 1101938231 1544192 228 1992294400 134512640 135197250 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 377 228 93 167 0 208 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1508

[startup+0.301413 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 575
/proc/meminfo: memFree=1158016/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=1508 CPUtime=0.29
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 257 0 0 0 29 0 0 0 19 0 1 0 1101938231 1544192 240 1992294400 134512640 135197250 4294956240 18446744073709551615 134552793 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 377 240 93 167 0 208 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1508

[startup+0.701457 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 575
/proc/meminfo: memFree=1158016/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=1676 CPUtime=0.69
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 284 0 0 0 69 0 0 0 22 0 1 0 1101938231 1716224 267 1992294400 134512640 135197250 4294956240 18446744073709551615 134542165 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 419 267 93 167 0 250 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1676

[startup+1.50154 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1157304/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=1956 CPUtime=1.49
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 326 0 0 0 149 0 0 0 25 0 1 0 1101938231 2002944 309 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 489 309 93 167 0 320 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1956

[startup+3.10171 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1156920/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=2024 CPUtime=3.09
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 352 0 0 0 309 0 0 0 25 0 1 0 1101938231 2072576 335 1992294400 134512640 135197250 4294956240 18446744073709551615 134552507 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 506 335 93 167 0 337 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2024

[startup+6.30106 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1156728/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=2276 CPUtime=6.29
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 396 0 0 0 629 0 0 0 25 0 1 0 1101938231 2330624 379 1992294400 134512640 135197250 4294956240 18446744073709551615 134539373 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 569 379 93 167 0 400 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2276

Solver just ended. Dumping a history of the last processes samples

[startup+9.5014 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1156536/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=2276 CPUtime=9.49
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 435 0 0 0 949 0 0 0 25 0 1 0 1101938231 2330624 418 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 569 418 93 167 0 400 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 2276

[startup+11.1016 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1156344/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=2504 CPUtime=11.09
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 453 0 0 0 1109 0 0 0 25 0 1 0 1101938231 2564096 436 1992294400 134512640 135197250 4294956240 18446744073709551615 134570751 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 626 436 93 167 0 457 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 2504

[startup+11.9017 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1156344/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=2504 CPUtime=11.89
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 463 0 0 0 1189 0 0 0 25 0 1 0 1101938231 2564096 446 1992294400 134512640 135197250 4294956240 18446744073709551615 134542146 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 626 446 93 167 0 457 0
Current children cumulated CPU time (s) 11.89
Current children cumulated vsize (KiB) 2504

[startup+12.3017 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1156280/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=2504 CPUtime=12.29
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 467 0 0 0 1229 0 0 0 25 0 1 0 1101938231 2564096 450 1992294400 134512640 135197250 4294956240 18446744073709551615 134553013 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 626 450 93 167 0 457 0
Current children cumulated CPU time (s) 12.29
Current children cumulated vsize (KiB) 2504

[startup+12.5017 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1156280/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=2504 CPUtime=12.49
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 469 0 0 0 1249 0 0 0 25 0 1 0 1101938231 2564096 452 1992294400 134512640 135197250 4294956240 18446744073709551615 134594042 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 626 452 93 167 0 457 0
Current children cumulated CPU time (s) 12.49
Current children cumulated vsize (KiB) 2504

[startup+12.6017 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 576
/proc/meminfo: memFree=1156280/2055920 swapFree=4173368/4192956
[pid=575] ppid=573 vsize=2504 CPUtime=12.59
/proc/575/stat : 575 (march_nn) R 573 575 32279 0 -1 4194304 471 0 0 0 1259 0 0 0 25 0 1 0 1101938231 2564096 454 1992294400 134512640 135197250 4294956240 18446744073709551615 134542426 0 0 4096 0 0 0 0 17 1 0 0
/proc/575/statm: 626 454 93 167 0 457 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 2504

Child status: 20
Real time (s): 12.6928
CPU time (s): 12.6891
CPU user time (s): 12.6821
CPU system time (s): 0.006998
CPU usage (%): 99.9705
Max. virtual memory (cumulated for all children) (KiB): 2504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.6821
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 474
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 18

runsolver used 0.012998 second user time and 0.043993 second system time

The end

Launcher Data 

Begin job on node19 at 2009-03-29 04:12:03
IDJOB=1517906
IDBENCH=70635
IDSOLVER=522
FILE ID=node19/1517906-1238292723
PBS_JOBID= 9060975
Free space on /tmp= 66404 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S1369720750-015.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517906-1238292723/watcher-1517906-1238292723 -o /tmp/evaluation-result-1517906-1238292723/solver-1517906-1238292723 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517906-1238292723.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= a64f61e36a26258a4e57b34bdb756185
RANDOM SEED=405566177

node19.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.235
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.235
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1158496 kB
Buffers:         99408 kB
Cached:         690448 kB
SwapCached:      13360 kB
Active:          93956 kB
Inactive:       711024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1158496 kB
SwapTotal:     4192956 kB
SwapFree:      4173368 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          15596 kB
Slab:            78384 kB
Committed_AS:  2942320 kB
PageTables:       1456 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66404 MiB
End job on node19 at 2009-03-29 04:12:16