Trace number 371701

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 2007-02-08SAT 51.6441 51.6608

General information on the benchmark

Namerandom/OnTreshold/7SAT/v75/
unif-k7-r89-v75-c6675-S1299158672-14.SAT.shuffled.cnf
MD5SUMbb020a272b82c40a137247ab0662fc0e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark10.3574
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses6675
Sum of the clauses size46725
Maximum clause length7
Minimum clause length7
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 50
Number of clauses of size over 56675

Solver Data (download as text)

1.00/1.04	c main():: ***                                   [ march satisfiability solver ]                                   ***
1.00/1.04	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
1.00/1.04	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
1.00/1.04	c main()::
1.00/1.04	c initFormula():: searching for DIMACS p-line....
1.00/1.04	c full lookahead due to high density!
1.00/1.04	c initFormula():: the DIMACS p-line indicates a CNF of 75 variables and 6675 clauses.
1.00/1.04	c parseCNF():: parsing....
1.00/1.04	c parseCNF():: the CNF contains 0 unary clauses.
1.00/1.04	c runParser():: parsing was successful, warming up engines...
1.00/1.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.00/1.04	c preprocessing fase I completed:: there are now 75 free variables and 6675 clauses.
1.00/1.04	c stat :: sign balance is biased by 0.006
1.00/1.04	c shorten_equivalence(): average equivalence length reduced from nan to nan
1.00/1.04	c using k-SAT heuristics (size based diff)
1.00/1.04	c longest clause has size 7
1.00/1.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 1 duplicate clauses
1.00/1.04	c resolvent_look() :: found 1 resolvents
1.00/1.04	c main():: clause / variable ratio: ( 6676 / 75 ) = 89.01
1.00/1.04	c longest clause has size 7
1.00/1.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.00/1.04	c dynamic_preselect_setsize :: off
1.00/1.04	c suggested doublelook initial :: 0
1.00/1.04	c main():: all systems go!
1.00/1.04	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 126 JD: 23
1.10/1.13	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: 2233 JD: 23
2.29/2.32	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 |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 2 NC: 19952 JD: 23
12.19/12.22	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 |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
51.58/51.65	c solution bin :: 00000010010000000000001.000001000
51.58/51.65	c direction branchin :: current_rights = 4
51.58/51.65	
c |***************************************************************
51.58/51.65	c
51.58/51.65	c main():: nodeCount: 89901
51.58/51.65	c main():: dead ends in main: 109
51.58/51.65	c main():: lookAheadCount: 6311357
51.58/51.65	c main():: unitResolveCount: 181515
51.58/51.65	c main():: time=51.640000
51.58/51.65	c main():: necessary_assignments: 467
51.58/51.65	c main():: bin_sat: 0, bin_unsat 0
51.58/51.65	c main():: doublelook: #: 301419, succes #: 240914
51.58/51.65	c main():: doublelook: overall 4.847 of all possible doublelooks executed
51.58/51.65	c main():: doublelook: succesrate: 79.927, average DL_trigger: 19.119
51.58/51.65	c main():: SOLUTION VERIFIED :-)
51.58/51.65	s SATISFIABLE
51.58/51.65	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 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-371701-1177544914 -o ROOT/results/node18/solver-371701-1177544914 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371701-1177544914/march_ks /tmp/evaluation/371701-1177544914/instance-371701-1177544914.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): 7500 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: 0.17 0.10 0.21 3/77 32299
/proc/meminfo: memFree=1551904/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=656 CPUtime=0
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 92 0 0 0 0 0 0 0 18 0 1 0 202408838 671744 78 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134684029 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 164 79 47 123 0 39 0

[startup+0.0866449 s]
/proc/loadavg: 0.17 0.10 0.21 3/77 32299
/proc/meminfo: memFree=1551904/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=1712 CPUtime=0.08
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 843 0 0 0 8 0 0 0 18 0 1 0 202408838 1753088 323 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134567045 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 428 323 67 123 0 303 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1712

[startup+0.101645 s]
/proc/loadavg: 0.17 0.10 0.21 3/77 32299
/proc/meminfo: memFree=1551904/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=1712 CPUtime=0.09
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 843 0 0 0 9 0 0 0 18 0 1 0 202408838 1753088 323 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 428 323 67 123 0 303 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1712

[startup+0.301665 s]
/proc/loadavg: 0.17 0.10 0.21 3/77 32299
/proc/meminfo: memFree=1551904/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=1712 CPUtime=0.29
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 843 0 0 0 29 0 0 0 19 0 1 0 202408838 1753088 323 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134567048 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 428 323 67 123 0 303 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1712

[startup+0.701702 s]
/proc/loadavg: 0.17 0.10 0.21 3/77 32299
/proc/meminfo: memFree=1551904/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=1712 CPUtime=0.69
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 843 0 0 0 69 0 0 0 23 0 1 0 202408838 1753088 323 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134567058 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 428 323 67 123 0 303 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1712

[startup+1.50178 s]
/proc/loadavg: 0.23 0.11 0.21 2/78 32300
/proc/meminfo: memFree=1550936/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=2040 CPUtime=1.49
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 1158 0 0 0 149 0 0 0 20 0 1 0 202408838 2088960 371 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134541823 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 510 371 72 123 0 385 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2040

[startup+3.10193 s]
/proc/loadavg: 0.23 0.11 0.21 2/78 32300
/proc/meminfo: memFree=1550424/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=2040 CPUtime=3.09
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 1158 0 0 0 309 0 0 0 25 0 1 0 202408838 2088960 371 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134537944 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 510 371 72 123 0 385 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2040

[startup+6.30125 s]
/proc/loadavg: 0.23 0.11 0.21 2/78 32300
/proc/meminfo: memFree=1550424/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=2040 CPUtime=6.29
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 1158 0 0 0 629 0 0 0 25 0 1 0 202408838 2088960 371 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134548064 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 510 371 72 123 0 385 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2040

[startup+12.7019 s]
/proc/loadavg: 0.43 0.16 0.22 2/78 32300
/proc/meminfo: memFree=1550360/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=2040 CPUtime=12.69
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 1158 0 0 0 1269 0 0 0 25 0 1 0 202408838 2088960 371 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134585134 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 510 371 72 123 0 385 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2040

[startup+25.5011 s]
/proc/loadavg: 0.52 0.19 0.23 2/78 32300
/proc/meminfo: memFree=1550296/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=2176 CPUtime=25.48
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 1190 0 0 0 2548 0 0 0 25 0 1 0 202408838 2228224 403 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 544 403 72 123 0 419 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 2176

[startup+51.1016 s]
/proc/loadavg: 0.68 0.25 0.25 2/78 32300
/proc/meminfo: memFree=1550168/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=2344 CPUtime=51.08
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 1218 0 0 0 5108 0 0 0 25 0 1 0 202408838 2400256 431 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 586 431 72 123 0 461 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 2344

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

[startup+51.5016 s]
/proc/loadavg: 0.68 0.25 0.25 2/78 32300
/proc/meminfo: memFree=1550168/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=2344 CPUtime=51.48
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 1219 0 0 0 5148 0 0 0 25 0 1 0 202408838 2400256 432 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134541823 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 586 432 72 123 0 461 0
Current children cumulated CPU time (s) 51.48
Current children cumulated vsize (KiB) 2344

[startup+51.6016 s]
/proc/loadavg: 0.71 0.26 0.25 2/78 32300
/proc/meminfo: memFree=1550168/2055920 swapFree=4147180/4192956
[pid=32299] ppid=32297 vsize=2344 CPUtime=51.58
/proc/32299/stat : 32299 (march_ks) R 32297 32299 32137 0 -1 4194304 1219 0 0 0 5158 0 0 0 25 0 1 0 202408838 2400256 432 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526947 0 0 4096 0 0 0 0 17 1 0 0
/proc/32299/statm: 586 432 72 123 0 461 0
Current children cumulated CPU time (s) 51.58
Current children cumulated vsize (KiB) 2344

Child status: 10
Real time (s): 51.6608
CPU time (s): 51.6441
CPU user time (s): 51.6371
CPU system time (s): 0.006998
CPU usage (%): 99.9678
Max. virtual memory (cumulated for all children) (KiB): 2344

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 51.6371
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= 1221
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= 9
involuntary context switches= 1038

runsolver used 0.044993 second user time and 0.117982 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Wed Apr 25 23:48:35 UTC 2007

IDJOB= 371701
IDBENCH= 19951
IDSOLVER= 180
FILE ID= node18/371701-1177544914

PBS_JOBID= 4696190

Free space on /tmp= 66488 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v75/unif-k7-r89-v75-c6675-S1299158672-14.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371701-1177544914/march_ks /tmp/evaluation/371701-1177544914/instance-371701-1177544914.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-371701-1177544914 -o ROOT/results/node18/solver-371701-1177544914 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371701-1177544914/march_ks /tmp/evaluation/371701-1177544914/instance-371701-1177544914.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  bb020a272b82c40a137247ab0662fc0e

RANDOM SEED= 163115310

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.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		: 3000.234
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		: 3000.234
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:       1552440 kB
Buffers:         45916 kB
Cached:         372008 kB
SwapCached:      14828 kB
Active:         204576 kB
Inactive:       236836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1552440 kB
SwapTotal:     4192956 kB
SwapFree:      4147180 kB
Dirty:            2440 kB
Writeback:           0 kB
Mapped:          30140 kB
Slab:            47580 kB
Committed_AS:  5449208 kB
PageTables:       1776 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= 66488 MiB

End job on node18 on Wed Apr 25 23:49:26 UTC 2007