Trace number 329622

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
KCNFS SMP? (MO) 6.79 4.35822

General information on the benchmark

Nameindustrial/IBM_FV_2002_31_1_rule_1/
SAT_dat.k70.cnf
MD5SUM7df05251eeff9fbbbfcc94a219ac2c0b
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables104135
Number of clauses466268
Sum of the clauses size1199934
Maximum clause length20
Minimum clause length1
Number of clauses of size 1663
Number of clauses of size 2363146
Number of clauses of size 351212
Number of clauses of size 420925
Number of clauses of size 59084
Number of clauses of size over 521238

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/329622-1173145131/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.89/0.99	c Input file : '/tmp/evaluation/329622-1173145131/instance-329622-1173145131.cnf'
0.89/0.99	c [#vars: 104135, #clauses: 466268 , (1-18)-CNF]
1.29/1.38	c unit clauses propagate before processing (#clause: 376605)
1.29/1.38	c estimated distribution: 8 tasks
1.69/1.70	c [PID]: 14705 14706 14707 14708 14709 14710

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node42/watcher-329622-1173145131 -o ROOT/results/node42/solver-329622-1173145131 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/329622-1173145131/kcnfs-smp /tmp/evaluation/329622-1173145131/instance-329622-1173145131.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: 0.92 0.98 1.08 3/64 14703
/proc/meminfo: memFree=1445464/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=180784 CPUtime=0
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 40466600 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/14703/statm: 45196 51 43 160 0 45034 0

[startup+0.030728 s]
/proc/loadavg: 0.92 0.98 1.08 3/64 14703
/proc/meminfo: memFree=1445464/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=180784 CPUtime=0.02
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 66 0 0 0 2 0 0 0 18 0 1 0 40466600 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/14703/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 180784

[startup+0.101741 s]
/proc/loadavg: 0.92 0.98 1.08 3/64 14703
/proc/meminfo: memFree=1445464/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=180784 CPUtime=0.09
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 66 0 0 0 9 0 0 0 18 0 1 0 40466600 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/14703/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 180784

[startup+0.301778 s]
/proc/loadavg: 0.92 0.98 1.08 3/64 14703
/proc/meminfo: memFree=1445464/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=187516 CPUtime=0.29
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 1764 0 0 0 29 0 0 0 19 0 1 0 40466600 192016384 1749 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/14703/statm: 46879 1750 48 160 0 46717 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 187516

[startup+0.701855 s]
/proc/loadavg: 0.92 0.98 1.08 3/64 14703
/proc/meminfo: memFree=1445464/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=208108 CPUtime=0.69
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 6930 0 0 0 65 4 0 0 24 0 1 0 40466600 213102592 6915 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/14703/statm: 52027 6915 48 160 0 51865 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 208108

[startup+1.50201 s]
/proc/loadavg: 0.92 0.98 1.08 2/65 14704
/proc/meminfo: memFree=1387984/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=243744 CPUtime=1.49
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 36209 0 0 0 135 14 0 0 25 0 1 0 40466600 249593856 35989 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134690316 0 0 4096 0 0 0 0 17 1 0 0
/proc/14703/statm: 60936 35989 64 160 0 60774 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 243744

[startup+3.10233 s]
/proc/loadavg: 0.93 0.98 1.08 4/67 14706
/proc/meminfo: memFree=1251328/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=243744 CPUtime=2.25
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 58122 0 0 0 194 31 0 0 25 0 1 0 40466600 249593856 37105 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 1 0 0
/proc/14703/statm: 60936 37105 66 160 0 60774 0
[pid=14705] ppid=14703 vsize=243744 CPUtime=0.88
/proc/14705/stat : 14705 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5633 0 0 0 86 2 0 0 25 0 1 0 40466769 249593856 37112 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720539 0 0 4096 2 0 0 0 17 1 0 0
/proc/14705/statm: 60936 37112 66 160 0 60774 0
[pid=14706] ppid=14703 vsize=243744 CPUtime=0.66
/proc/14706/stat : 14706 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5607 0 0 0 64 2 0 0 25 0 1 0 40466778 249593856 37104 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/14706/statm: 60936 37104 66 160 0 60774 0
Current children cumulated CPU time (s) 3.79
Current children cumulated vsize (KiB) 731232



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+4.30156 s]
/proc/loadavg: 0.93 0.98 1.08 9/72 14711
/proc/meminfo: memFree=1157400/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=243744 CPUtime=2.51
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 68403 0 0 0 210 41 0 0 25 0 1 0 40466600 249593856 37105 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 0 0 0
/proc/14703/statm: 60936 37105 66 160 0 60774 0
[pid=14705] ppid=14703 vsize=243744 CPUtime=1.29
/proc/14705/stat : 14705 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5681 0 0 0 127 2 0 0 25 0 1 0 40466769 249593856 37125 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720537 0 0 4096 2 0 0 0 17 1 0 0
/proc/14705/statm: 60936 37125 66 160 0 60774 0
[pid=14706] ppid=14703 vsize=243744 CPUtime=1.02
/proc/14706/stat : 14706 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5650 0 0 0 100 2 0 0 25 0 1 0 40466778 249593856 37116 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 0 0 0 0 17 0 0 0
/proc/14706/statm: 60936 37116 66 160 0 60774 0
[pid=14707] ppid=14703 vsize=243744 CPUtime=0.82
/proc/14707/stat : 14707 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5637 0 0 0 81 1 0 0 25 0 1 0 40466818 249593856 37109 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 0 0 0
/proc/14707/statm: 60936 37109 66 160 0 60774 0
[pid=14708] ppid=14703 vsize=243744 CPUtime=0.61
/proc/14708/stat : 14708 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5614 0 0 0 58 3 0 0 25 0 1 0 40466840 249593856 37101 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720483 0 0 4096 0 0 0 0 17 1 0 0
/proc/14708/statm: 60936 37101 66 160 0 60774 0
[pid=14709] ppid=14703 vsize=243744 CPUtime=0.33
/proc/14709/stat : 14709 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5557 0 0 0 31 2 0 0 25 0 1 0 40466927 249593856 37113 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 2 0 0 0 17 1 0 0
/proc/14709/statm: 60936 37113 66 160 0 60774 0
[pid=14710] ppid=14703 vsize=243744 CPUtime=0.21
/proc/14710/stat : 14710 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5545 0 0 0 18 3 0 0 25 0 1 0 40466951 249593856 37110 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/14710/statm: 60936 37110 66 160 0 60774 0
[pid=14711] ppid=14703 vsize=243744 CPUtime=0
/proc/14711/stat : 14711 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 136 0 0 0 0 0 0 0 25 0 1 0 40467029 249593856 37105 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 0 0 0
/proc/14711/statm: 60936 37105 66 160 0 60774 0
Current children cumulated CPU time (s) 6.79
Current children cumulated vsize (KiB) 1949952

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+4.30156 s]
/proc/loadavg: 0.93 0.98 1.08 9/72 14711
/proc/meminfo: memFree=1157400/2055920 swapFree=4184636/4192956
[pid=14703] ppid=14701 vsize=243744 CPUtime=2.51
/proc/14703/stat : 14703 (kcnfs-smp) R 14701 14703 13568 0 -1 4194304 68403 0 0 0 210 41 0 0 25 0 1 0 40466600 249593856 37105 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 0 0 0
/proc/14703/statm: 60936 37105 66 160 0 60774 0
[pid=14705] ppid=14703 vsize=243744 CPUtime=1.29
/proc/14705/stat : 14705 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5681 0 0 0 127 2 0 0 25 0 1 0 40466769 249593856 37125 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720537 0 0 4096 2 0 0 0 17 1 0 0
/proc/14705/statm: 60936 37125 66 160 0 60774 0
[pid=14706] ppid=14703 vsize=243744 CPUtime=1.02
/proc/14706/stat : 14706 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5650 0 0 0 100 2 0 0 25 0 1 0 40466778 249593856 37116 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 0 0 0 0 17 0 0 0
/proc/14706/statm: 60936 37116 66 160 0 60774 0
[pid=14707] ppid=14703 vsize=243744 CPUtime=0.82
/proc/14707/stat : 14707 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5637 0 0 0 81 1 0 0 25 0 1 0 40466818 249593856 37109 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 0 0 0
/proc/14707/statm: 60936 37109 66 160 0 60774 0
[pid=14708] ppid=14703 vsize=243744 CPUtime=0.61
/proc/14708/stat : 14708 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5614 0 0 0 58 3 0 0 25 0 1 0 40466840 249593856 37101 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720483 0 0 4096 0 0 0 0 17 1 0 0
/proc/14708/statm: 60936 37101 66 160 0 60774 0
[pid=14709] ppid=14703 vsize=243744 CPUtime=0.33
/proc/14709/stat : 14709 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5557 0 0 0 31 2 0 0 25 0 1 0 40466927 249593856 37113 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 2 0 0 0 17 1 0 0
/proc/14709/statm: 60936 37113 66 160 0 60774 0
[pid=14710] ppid=14703 vsize=243744 CPUtime=0.21
/proc/14710/stat : 14710 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 5545 0 0 0 18 3 0 0 25 0 1 0 40466951 249593856 37110 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/14710/statm: 60936 37110 66 160 0 60774 0
[pid=14711] ppid=14703 vsize=243744 CPUtime=0
/proc/14711/stat : 14711 (kcnfs-smp) R 14703 14703 13568 0 -1 4194368 136 0 0 0 0 0 0 0 25 0 1 0 40467029 249593856 37105 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 0 0 0
/proc/14711/statm: 60936 37105 66 160 0 60774 0
Current children cumulated CPU time (s) 6.79
Current children cumulated vsize (KiB) 1949952

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 14703 and gives childrusage.ru_utime.tv_sec=2 childrusage.ru_utime.tv_usec=107679 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=428934
CPU time returned by wait4() is 2.53661
while last known CPU time is 6.79

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 4.35822
CPU time (s): 6.79
CPU user time (s): 6.25
CPU system time (s): 0.54
CPU usage (%): 155.797
Max. virtual memory (cumulated for all children) (KiB): 1949952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.10768
system time used= 0.428934
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 68403
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= 4
involuntary context switches= 44

runsolver used 0.004999 second user time and 0.023996 second system time

The end

Launcher Data (download as text)

Begin job on node42 on Tue Mar  6 01:38:52 UTC 2007

IDJOB= 329622
IDBENCH= 20544
IDSOLVER= 112
FILE ID= node42/329622-1173145131

PBS_JOBID= 4015199

Free space on /tmp= 66515 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2002_31_1_rule_1/SAT_dat.k70.cnf
COMMAND LINE= /tmp/evaluation/329622-1173145131/kcnfs-smp /tmp/evaluation/329622-1173145131/instance-329622-1173145131.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-329622-1173145131 -o ROOT/results/node42/solver-329622-1173145131 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/329622-1173145131/kcnfs-smp /tmp/evaluation/329622-1173145131/instance-329622-1173145131.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  7df05251eeff9fbbbfcc94a219ac2c0b

RANDOM SEED= 487171584

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node42.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		: 3000.263
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		: 3000.263
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:       1446256 kB
Buffers:         25476 kB
Cached:         512668 kB
SwapCached:       1368 kB
Active:          40924 kB
Inactive:       508828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1446256 kB
SwapTotal:     4192956 kB
SwapFree:      4184636 kB
Dirty:           13788 kB
Writeback:           0 kB
Mapped:          19360 kB
Slab:            45916 kB
Committed_AS:   101872 kB
PageTables:       1420 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= 66515 MiB

End job on node42 on Tue Mar  6 01:38:58 UTC 2007