Trace number 1626399

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
SAT07 reference solver: March KS 2007-02-08SAT 3.22451 3.2254

General information on the benchmark

NameRANDOM/MEDIUM/5SAT/SATISFIABLE/100/
unif-k5-r21.3-v100-c2130-S393518083-009.cnf
MD5SUM81856c3d33444497a06d91594d737387
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.102983
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of clauses2130
Sum of the clauses size10650
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 52130
Number of clauses of size over 50

Solver Data 

0.00/0.03	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.03	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.03	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.03	c main()::
0.00/0.03	c initFormula():: searching for DIMACS p-line....
0.00/0.03	c full lookahead due to high density!
0.00/0.03	c initFormula():: the DIMACS p-line indicates a CNF of 100 variables and 2130 clauses.
0.00/0.03	c parseCNF():: parsing....
0.00/0.03	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.03	c runParser():: parsing was successful, warming up engines...
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.03	c preprocessing fase I completed:: there are now 100 free variables and 2130 clauses.
0.00/0.03	c stat :: sign balance is biased by 0.041
0.00/0.03	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.03	c using k-SAT heuristics (size based diff)
0.00/0.03	c longest clause has size 5
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 7 duplicate clauses
0.00/0.03	c resolvent_look() :: found 3 resolvents
0.00/0.03	c main():: clause / variable ratio: ( 2133 / 100 ) = 21.33
0.00/0.03	c longest clause has size 5
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.03	c dynamic_preselect_setsize :: off
0.00/0.03	c suggested doublelook initial :: 0
0.00/0.03	c main():: all systems go!
0.00/0.03	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 201 JD: 18
0.10/0.11	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: 2591 JD: 18
1.00/1.08	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 |******************************************************
c |*******************************************************
3.20/3.22	c solution bin :: 001000000000000001.00101100000000
3.20/3.22	c direction branchin :: current_rights = 5
3.20/3.22	
c |*******************************************************
3.20/3.22	c
3.20/3.22	c main():: nodeCount: 7921
3.20/3.22	c main():: dead ends in main: 17
3.20/3.22	c main():: lookAheadCount: 918622
3.20/3.22	c main():: unitResolveCount: 21263
3.20/3.22	c main():: time=3.220000
3.20/3.22	c main():: necessary_assignments: 122
3.20/3.22	c main():: bin_sat: 0, bin_unsat 0
3.20/3.22	c main():: doublelook: #: 34265, succes #: 28124
3.20/3.22	c main():: doublelook: overall 3.779 of all possible doublelooks executed
3.20/3.22	c main():: doublelook: succesrate: 82.078, average DL_trigger: 24.712
3.20/3.22	c main():: SOLUTION VERIFIED :-)
3.20/3.22	s SATISFIABLE
3.20/3.22	v -1 2 3 -4 -5 6 7 -8 9 -10 11 12 13 14 -15 16 -17 18 -19 -20 21 22 -23 24 -25 -26 27 -28 29 30 -31 -32 -33 34 35 -36 37 -38 39 40 41 -42 43 44 45 -46 -47 -48 49 -50 -51 -52 53 54 55 56 -57 58 59 60 -61 -62 -63 -64 65 66 -67 68 69 70 71 -72 73 74 -75 -76 -77 78 -79 -80 -81 -82 -83 84 85 -86 87 -88 89 -90 91 -92 93 94 95 96 97 -98 99 -100 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1626399-1240078296/watcher-1626399-1240078296 -o /tmp/evaluation-result-1626399-1240078296/solver-1626399-1240078296 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1626399-1240078296.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 1.01 1.02 1.04 3/64 22114
/proc/meminfo: memFree=853880/2055920 swapFree=4192956/4192956
[pid=22114] ppid=22112 vsize=792 CPUtime=0
/proc/22114/stat : 22114 (march_ks) R 22112 22114 20473 0 -1 4194304 109 0 0 0 0 0 0 0 18 0 1 0 35857583 811008 94 1992294400 134512640 135019032 4294956240 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/22114/statm: 198 94 48 123 0 73 0

[startup+0.0836629 s]
/proc/loadavg: 1.01 1.02 1.04 3/64 22114
/proc/meminfo: memFree=853880/2055920 swapFree=4192956/4192956
[pid=22114] ppid=22112 vsize=1048 CPUtime=0.08
/proc/22114/stat : 22114 (march_ks) R 22112 22114 20473 0 -1 4194304 194 0 0 0 8 0 0 0 18 0 1 0 35857583 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134536937 0 0 4096 0 0 0 0 17 0 0 0
/proc/22114/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1048

[startup+0.101664 s]
/proc/loadavg: 1.01 1.02 1.04 3/64 22114
/proc/meminfo: memFree=853880/2055920 swapFree=4192956/4192956
[pid=22114] ppid=22112 vsize=1048 CPUtime=0.1
/proc/22114/stat : 22114 (march_ks) R 22112 22114 20473 0 -1 4194304 194 0 0 0 10 0 0 0 18 0 1 0 35857583 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134538188 0 0 4096 0 0 0 0 17 0 0 0
/proc/22114/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1048

[startup+0.301688 s]
/proc/loadavg: 1.01 1.02 1.04 3/64 22114
/proc/meminfo: memFree=853880/2055920 swapFree=4192956/4192956
[pid=22114] ppid=22112 vsize=1048 CPUtime=0.3
/proc/22114/stat : 22114 (march_ks) R 22112 22114 20473 0 -1 4194304 194 0 0 0 30 0 0 0 19 0 1 0 35857583 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134526947 0 0 4096 0 0 0 0 17 0 0 0
/proc/22114/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1048

[startup+0.701735 s]
/proc/loadavg: 1.01 1.02 1.04 3/64 22114
/proc/meminfo: memFree=853880/2055920 swapFree=4192956/4192956
[pid=22114] ppid=22112 vsize=1048 CPUtime=0.7
/proc/22114/stat : 22114 (march_ks) R 22112 22114 20473 0 -1 4194304 194 0 0 0 70 0 0 0 23 0 1 0 35857583 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134537968 0 0 4096 0 0 0 0 17 0 0 0
/proc/22114/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1048

[startup+1.50183 s]
/proc/loadavg: 1.01 1.02 1.04 2/65 22115
/proc/meminfo: memFree=853488/2055920 swapFree=4192956/4192956
[pid=22114] ppid=22112 vsize=1048 CPUtime=1.5
/proc/22114/stat : 22114 (march_ks) R 22112 22114 20473 0 -1 4194304 194 0 0 0 150 0 0 0 25 0 1 0 35857583 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134526953 0 0 4096 0 0 0 0 17 0 0 0
/proc/22114/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1048

[startup+3.10202 s]
/proc/loadavg: 1.01 1.02 1.04 2/65 22115
/proc/meminfo: memFree=853360/2055920 swapFree=4192956/4192956
[pid=22114] ppid=22112 vsize=1048 CPUtime=3.1
/proc/22114/stat : 22114 (march_ks) R 22112 22114 20473 0 -1 4194304 194 0 0 0 310 0 0 0 25 0 1 0 35857583 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134537979 0 0 4096 0 0 0 0 17 0 0 0
/proc/22114/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1048

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

[startup+3.20103 s]
/proc/loadavg: 1.01 1.02 1.04 2/65 22115
/proc/meminfo: memFree=853360/2055920 swapFree=4192956/4192956
[pid=22114] ppid=22112 vsize=1048 CPUtime=3.2
/proc/22114/stat : 22114 (march_ks) R 22112 22114 20473 0 -1 4194304 194 0 0 0 320 0 0 0 25 0 1 0 35857583 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134596378 0 0 4096 0 0 0 0 17 0 0 0
/proc/22114/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 3.2
Current children cumulated vsize (KiB) 1048

Child status: 10
Real time (s): 3.2254
CPU time (s): 3.22451
CPU user time (s): 3.22351
CPU system time (s): 0.000999
CPU usage (%): 99.9724
Max. virtual memory (cumulated for all children) (KiB): 1048

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.22351
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 196
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= 6

runsolver used 0.003999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node53 at 2009-04-18 20:11:36
IDJOB=1626399
IDBENCH=70434
IDSOLVER=582
FILE ID=node53/1626399-1240078296
PBS_JOBID= 9157596
Free space on /tmp= 66432 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/5SAT/SATISFIABLE/100/unif-k5-r21.3-v100-c2130-S393518083-009.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626399-1240078296/watcher-1626399-1240078296 -o /tmp/evaluation-result-1626399-1240078296/solver-1626399-1240078296 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1626399-1240078296.cnf            

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 81856c3d33444497a06d91594d737387
RANDOM SEED=677529235

node53.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		: 3000.245
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		: 3000.245
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        854360 kB
Buffers:         80900 kB
Cached:        1026412 kB
SwapCached:          0 kB
Active:         247984 kB
Inactive:       873268 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        854360 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3476 kB
Writeback:           0 kB
Mapped:          23700 kB
Slab:            66352 kB
Committed_AS:   172576 kB
PageTables:       1376 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= 66428 MiB
End job on node53 at 2009-04-18 20:11:39