Trace number 319033

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, and are wall clock time (not CPU 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 KS 2007-02-08UNSAT 2.5986 2.60057

General information on the benchmark

Nameindustrial/jarvisalo/
eq.atree.braun.7.unsat.cnf
MD5SUM39c753fcd6ac15019fa3a40cd8b8f69d
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.851869
Satisfiable
(Un)Satisfiability was proved
Number of variables505
Number of clauses1696
Sum of the clauses size4422
Maximum clause length13
Minimum clause length1
Number of clauses of size 13
Number of clauses of size 2719
Number of clauses of size 3948
Number of clauses of size 410
Number of clauses of size 510
Number of clauses of size over 56

Solver Data (download as text)

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
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 505 variables and 1696 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 3 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 29 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 502 free variables and 1667 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.084
0.00/0.01	c find_equivalence():: found 161 3-equivalences
0.00/0.01	c find_and_remove_tautogolies():: found and removed 23 tautologies
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from 5.335766 to 3.467153
0.00/0.01	c using k-SAT heuristics (size based diff)
0.00/0.01	c longest clause has size 12
0.00/0.01	c simplify_formula():: removed 0 tautological, 644 satisfied and 0 duplicate clauses
0.00/0.01	c main():: clause / variable ratio: ( 1023 / 505 ) = 2.03
0.00/0.01	c longest clause has size 11
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c dynamic_preselect_setsize :: on
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |********************************
c |****************************************************************| 0 NC: 155 JD: 2
0.79/0.87	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |************************************************
c |****************************************************************| 1 NC: 422 JD: 2
2.10/2.17	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |************
c |****************
c |********************************
c |****************************************************************| 2 NC: 550 JD: 2
2.49/2.59	c |----------------------------------------------------------------|
c |
2.49/2.59	c
2.49/2.59	c main():: nodeCount: 550
2.49/2.59	c main():: dead ends in main: 3
2.49/2.59	c main():: lookAheadCount: 241051
2.49/2.59	c main():: unitResolveCount: 23954
2.49/2.59	c main():: time=2.590000
2.49/2.59	c main():: necessary_assignments: 1933
2.49/2.59	c main():: bin_sat: 0, bin_unsat 0
2.49/2.59	c main():: doublelook: #: 3393, succes #: 2439
2.49/2.59	c main():: doublelook: overall 1.434 of all possible doublelooks executed
2.49/2.59	c main():: doublelook: succesrate: 71.883, average DL_trigger: 169.874
2.49/2.59	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node69/watcher-319033-1172971552 -o ROOT/results/node69/solver-319033-1172971552 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/319033-1172971552/march_ks /tmp/evaluation/319033-1172971552/instance-319033-1172971552.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): 2400 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: 1.05 1.01 0.96 3/64 31438
/proc/meminfo: memFree=1775976/2055920 swapFree=4184096/4192956
[pid=31438] ppid=31436 vsize=792 CPUtime=0
/proc/31438/stat : 31438 (march_ks) R 31436 31438 30141 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 317112918 811008 101 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134677364 0 0 4096 0 0 0 0 17 1 0 0
/proc/31438/statm: 198 101 50 123 0 73 0

[startup+0.055407 s]
/proc/loadavg: 1.05 1.01 0.96 3/64 31438
/proc/meminfo: memFree=1775976/2055920 swapFree=4184096/4192956
[pid=31438] ppid=31436 vsize=1188 CPUtime=0.05
/proc/31438/stat : 31438 (march_ks) R 31436 31438 30141 0 -1 4194304 250 0 0 0 5 0 0 0 18 0 1 0 317112918 1216512 231 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134543286 0 0 4096 0 0 0 0 17 1 0 0
/proc/31438/statm: 297 231 72 123 0 172 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1188

[startup+0.101414 s]
/proc/loadavg: 1.05 1.01 0.96 3/64 31438
/proc/meminfo: memFree=1775976/2055920 swapFree=4184096/4192956
[pid=31438] ppid=31436 vsize=1340 CPUtime=0.09
/proc/31438/stat : 31438 (march_ks) R 31436 31438 30141 0 -1 4194304 261 0 0 0 9 0 0 0 18 0 1 0 317112918 1372160 242 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134539075 0 0 4096 0 0 0 0 17 1 0 0
/proc/31438/statm: 335 242 72 123 0 210 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1340

[startup+0.301446 s]
/proc/loadavg: 1.05 1.01 0.96 3/64 31438
/proc/meminfo: memFree=1775976/2055920 swapFree=4184096/4192956
[pid=31438] ppid=31436 vsize=1340 CPUtime=0.29
/proc/31438/stat : 31438 (march_ks) R 31436 31438 30141 0 -1 4194304 289 0 0 0 29 0 0 0 19 0 1 0 317112918 1372160 270 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 1 0 0
/proc/31438/statm: 335 270 72 123 0 210 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1340

[startup+0.701511 s]
/proc/loadavg: 1.05 1.01 0.96 3/64 31438
/proc/meminfo: memFree=1775976/2055920 swapFree=4184096/4192956
[pid=31438] ppid=31436 vsize=1472 CPUtime=0.69
/proc/31438/stat : 31438 (march_ks) R 31436 31438 30141 0 -1 4194304 303 0 0 0 69 0 0 0 22 0 1 0 317112918 1507328 284 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538202 0 0 4096 0 0 0 0 17 1 0 0
/proc/31438/statm: 368 284 72 123 0 243 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1472

[startup+1.50164 s]
/proc/loadavg: 1.04 1.01 0.96 2/65 31439
/proc/meminfo: memFree=1775072/2055920 swapFree=4184096/4192956
[pid=31438] ppid=31436 vsize=1472 CPUtime=1.49
/proc/31438/stat : 31438 (march_ks) R 31436 31438 30141 0 -1 4194304 318 0 0 0 149 0 0 0 25 0 1 0 317112918 1507328 299 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538413 0 0 4096 0 0 0 0 17 1 0 0
/proc/31438/statm: 368 299 72 123 0 243 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1472

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

[startup+2.30177 s]
/proc/loadavg: 1.04 1.01 0.96 2/65 31439
/proc/meminfo: memFree=1774880/2055920 swapFree=4184096/4192956
[pid=31438] ppid=31436 vsize=1604 CPUtime=2.29
/proc/31438/stat : 31438 (march_ks) R 31436 31438 30141 0 -1 4194304 328 0 0 0 229 0 0 0 25 0 1 0 317112918 1642496 309 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538435 0 0 4096 0 0 0 0 17 1 0 0
/proc/31438/statm: 401 309 72 123 0 276 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 1604

[startup+2.5018 s]
/proc/loadavg: 1.04 1.01 0.96 2/65 31439
/proc/meminfo: memFree=1774880/2055920 swapFree=4184096/4192956
[pid=31438] ppid=31436 vsize=1604 CPUtime=2.49
/proc/31438/stat : 31438 (march_ks) R 31436 31438 30141 0 -1 4194304 331 0 0 0 249 0 0 0 25 0 1 0 317112918 1642496 312 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134527043 0 0 4096 0 0 0 0 17 1 0 0
/proc/31438/statm: 401 312 72 123 0 276 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 1604

Child status: 20
Real time (s): 2.60057
CPU time (s): 2.5986
CPU user time (s): 2.5946
CPU system time (s): 0.003999
CPU usage (%): 99.9246
Max. virtual memory (cumulated for all children) (KiB): 1604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.59461
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 334
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= 8
involuntary context switches= 9

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node69 on Sun Mar  4 01:25:52 UTC 2007

IDJOB= 319033
IDBENCH= 20469
IDSOLVER= 111
FILE ID= node69/319033-1172971552

PBS_JOBID= 4012039

Free space on /tmp= 66546 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/jarvisalo/eq.atree.braun.7.unsat.cnf
COMMAND LINE= /tmp/evaluation/319033-1172971552/march_ks /tmp/evaluation/319033-1172971552/instance-319033-1172971552.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node69/watcher-319033-1172971552 -o ROOT/results/node69/solver-319033-1172971552 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/319033-1172971552/march_ks /tmp/evaluation/319033-1172971552/instance-319033-1172971552.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  39c753fcd6ac15019fa3a40cd8b8f69d

RANDOM SEED= 989499463

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node69.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.261
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		: 3000.261
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:       1776448 kB
Buffers:          5508 kB
Cached:         211152 kB
SwapCached:       2776 kB
Active:          54784 kB
Inactive:       171356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1776448 kB
SwapTotal:     4192956 kB
SwapFree:      4184096 kB
Dirty:            2296 kB
Writeback:           0 kB
Mapped:          15472 kB
Slab:            39288 kB
Committed_AS:   799956 kB
PageTables:       1472 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= 66546 MiB

End job on node69 on Sun Mar  4 01:25:55 UTC 2007