Trace number 1738300

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 2007-02-08Signal 34.1598 34.1757

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-22-173-20-80.cnf
MD5SUMfcc3fcd52c921ace90c257c57bbc4b6d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.064989
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses22276
Sum of the clauses size44952
Maximum clause length22
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 222256
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 520

Solver Data 

0.02/0.07	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.02/0.07	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.02/0.07	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.02/0.07	c main()::
0.02/0.07	c initFormula():: searching for DIMACS p-line....
0.02/0.07	c full lookahead due to high density!
0.02/0.07	c initFormula():: the DIMACS p-line indicates a CNF of 440 variables and 22276 clauses.
0.02/0.07	c parseCNF():: parsing....
0.02/0.07	c parseCNF():: the CNF contains 0 unary clauses.
0.02/0.07	c runParser():: parsing was successful, warming up engines...
0.02/0.07	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.02/0.07	c preprocessing fase I completed:: there are now 440 free variables and 22276 clauses.
0.02/0.07	c stat :: sign balance is biased by 98.949
0.02/0.07	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.02/0.07	c using k-SAT heuristics (size based diff)
0.02/0.07	c longest clause has size 22
0.02/0.07	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.02/0.07	c main():: clause / variable ratio: ( 22276 / 440 ) = 50.63
0.02/0.07	c longest clause has size 22
0.02/0.07	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.02/0.07	c dynamic_preselect_setsize :: on
0.02/0.07	c suggested doublelook initial :: 0
0.02/0.07	c main():: all systems go!
0.02/0.07	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 441 JD: 341
3.79/3.87	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: 35266 JD: 341
8.19/8.24	c |----------------------------------------------------------------|
c |****************
c |************************
c |****************************
c |******************************
c |*******************************
c |********************************
c |****************************************
c |********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1738300-1240836995/watcher-1738300-1240836995 -o /tmp/evaluation-result-1738300-1240836995/solver-1738300-1240836995 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1738300-1240836995.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 1.00 1.08 3/64 9151
/proc/meminfo: memFree=1545124/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=832 CPUtime=0
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 111732024 851968 110 1992294400 134512640 135019032 4294956224 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 208 110 47 123 0 83 0

[startup+0.031894 s]
/proc/loadavg: 1.00 1.00 1.08 3/64 9151
/proc/meminfo: memFree=1545124/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=2116 CPUtime=0.02
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 315 0 0 0 2 0 0 0 18 0 1 0 111732024 2166784 282 1992294400 134512640 135019032 4294956224 18446744073709551615 134660991 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 529 282 49 123 0 404 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2116

[startup+0.1019 s]
/proc/loadavg: 1.00 1.00 1.08 3/64 9151
/proc/meminfo: memFree=1545124/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=3340 CPUtime=0.09
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 1294 0 0 0 9 0 0 0 18 0 1 0 111732024 3420160 473 1992294400 134512640 135019032 4294956224 18446744073709551615 134538179 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 835 473 72 123 0 710 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3340

[startup+0.301921 s]
/proc/loadavg: 1.00 1.00 1.08 3/64 9151
/proc/meminfo: memFree=1545124/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=3340 CPUtime=0.29
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 1294 0 0 0 29 0 0 0 19 0 1 0 111732024 3420160 473 1992294400 134512640 135019032 4294956224 18446744073709551615 134538176 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 835 473 72 123 0 710 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3340

[startup+0.701966 s]
/proc/loadavg: 1.00 1.00 1.08 3/64 9151
/proc/meminfo: memFree=1545124/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=3340 CPUtime=0.69
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 1294 0 0 0 69 0 0 0 23 0 1 0 111732024 3420160 473 1992294400 134512640 135019032 4294956224 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 835 473 72 123 0 710 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3340

[startup+1.50106 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1543452/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=3340 CPUtime=1.49
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 1294 0 0 0 149 0 0 0 25 0 1 0 111732024 3420160 473 1992294400 134512640 135019032 4294956224 18446744073709551615 134526930 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 835 473 72 123 0 710 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3340

[startup+3.10123 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1543324/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=3340 CPUtime=3.09
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 1294 0 0 0 308 1 0 0 25 0 1 0 111732024 3420160 473 1992294400 134512640 135019032 4294956224 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 835 473 72 123 0 710 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3340

[startup+6.30159 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1542556/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=4080 CPUtime=6.29
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 1487 0 0 0 628 1 0 0 25 0 1 0 111732024 4177920 648 1992294400 134512640 135019032 4294956224 18446744073709551615 134538194 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 1020 648 72 123 0 895 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4080

[startup+12.7013 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1541020/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=6108 CPUtime=12.68
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 1886 0 0 0 1267 1 0 0 25 0 1 0 111732024 6254592 1047 1992294400 134512640 135019032 4294956224 18446744073709551615 134597813 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 1527 1047 72 123 0 1402 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 6108

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1537308/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=11864 CPUtime=25.47
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 2818 0 0 0 2546 1 0 0 25 0 1 0 111732024 12148736 1979 1992294400 134512640 135019032 4294956224 18446744073709551615 134564795 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 2966 1979 72 123 0 2841 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 11864

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

[startup+28.7011 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1536412/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=11864 CPUtime=28.68
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 3043 0 0 0 2866 2 0 0 25 0 1 0 111732024 12148736 2204 1992294400 134512640 135019032 4294956224 18446744073709551615 134548048 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 2966 2204 72 123 0 2841 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 11864

[startup+31.9055 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1535452/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=11864 CPUtime=31.88
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 3268 0 0 0 3186 2 0 0 25 0 1 0 111732024 12148736 2429 1992294400 134512640 135019032 4294956224 18446744073709551615 134564377 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 2966 2430 72 123 0 2841 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 11864

[startup+33.5016 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1535132/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=11864 CPUtime=33.48
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 3382 0 0 0 3346 2 0 0 25 0 1 0 111732024 12148736 2543 1992294400 134512640 135019032 4294956224 18446744073709551615 134564752 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 2966 2543 72 123 0 2841 0
Current children cumulated CPU time (s) 33.48
Current children cumulated vsize (KiB) 11864

[startup+33.9017 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1535132/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=11864 CPUtime=33.88
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 3405 0 0 0 3386 2 0 0 25 0 1 0 111732024 12148736 2566 1992294400 134512640 135019032 4294956224 18446744073709551615 134538406 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 2966 2566 72 123 0 2841 0
Current children cumulated CPU time (s) 33.88
Current children cumulated vsize (KiB) 11864

[startup+34.1057 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 9152
/proc/meminfo: memFree=1534876/2055920 swapFree=4181276/4192956
[pid=9151] ppid=9149 vsize=11864 CPUtime=34.08
/proc/9151/stat : 9151 (march_ks) R 9149 9151 8904 0 -1 4194304 3418 0 0 0 3406 2 0 0 25 0 1 0 111732024 12148736 2579 1992294400 134512640 135019032 4294956224 18446744073709551615 134564766 0 0 4096 0 0 0 0 17 0 0 0
/proc/9151/statm: 2966 2579 72 123 0 2841 0
Current children cumulated CPU time (s) 34.08
Current children cumulated vsize (KiB) 11864

Child ended because it received signal 11 (SIGSEGV)
Child dumped core
Real time (s): 34.1757
CPU time (s): 34.1598
CPU user time (s): 34.0948
CPU system time (s): 0.06499
CPU usage (%): 99.9534
Max. virtual memory (cumulated for all children) (KiB): 11864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 34.0948
system time used= 0.06499
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4211
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= 92

runsolver used 0.038994 second user time and 0.094985 second system time

The end

Launcher Data 

Begin job on node35 at 2009-04-27 14:56:35
IDJOB=1738300
IDBENCH=71804
IDSOLVER=559
FILE ID=node35/1738300-1240836995
PBS_JOBID= 9187488
Free space on /tmp= 66456 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-22-173-20-80.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738300-1240836995/watcher-1738300-1240836995 -o /tmp/evaluation-result-1738300-1240836995/solver-1738300-1240836995 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1738300-1240836995.cnf            

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

MD5SUM BENCH= fcc3fcd52c921ace90c257c57bbc4b6d
RANDOM SEED=1224041158

node35.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		: 3000.214
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		: 3000.214
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:       1545604 kB
Buffers:         69096 kB
Cached:         375912 kB
SwapCached:       5696 kB
Active:         209084 kB
Inactive:       244052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1545604 kB
SwapTotal:     4192956 kB
SwapFree:      4181276 kB
Dirty:            3124 kB
Writeback:           0 kB
Mapped:          13632 kB
Slab:            43260 kB
Committed_AS:   533376 kB
PageTables:       1396 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= 66444 MiB
End job on node35 at 2009-04-27 14:57:09