Trace number 329538

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) 5.32 3.22585

General information on the benchmark

Nameindustrial/IBM_FV_2002_31_1_rule_1/
SAT_dat.k40.cnf
MD5SUM2072f9709ddb4f70f2210d26eee094a7
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 variables58715
Number of clauses262388
Sum of the clauses size675054
Maximum clause length20
Minimum clause length1
Number of clauses of size 1423
Number of clauses of size 2204266
Number of clauses of size 328862
Number of clauses of size 411775
Number of clauses of size 55124
Number of clauses of size over 511938

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/329538-1173143225/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.49/0.56	c Input file : '/tmp/evaluation/329538-1173143225/instance-329538-1173143225.cnf'
0.49/0.56	c [#vars: 58715, #clauses: 262388 , (1-18)-CNF]
0.69/0.78	c unit clauses propagate before processing (#clause: 200235)
0.69/0.78	c estimated distribution: 8 tasks
0.89/0.95	c [PID]: 30095 30096 30097 30098 30099 30100 30101
4.59/3.04	c [PID]: 30102
4.59/3.04	c real distribution: 8 tasks

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/node14/watcher-329538-1173143225 -o ROOT/results/node14/solver-329538-1173143225 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/329538-1173143225/kcnfs-smp /tmp/evaluation/329538-1173143225/instance-329538-1173143225.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 1.01 1.10 3/77 30093
/proc/meminfo: memFree=1777584/2055920 swapFree=4172616/4192956
[pid=30093] ppid=30091 vsize=180784 CPUtime=0
/proc/30093/stat : 30093 (kcnfs-smp) R 30091 30093 29013 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 334276933 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134956349 0 0 4096 0 0 0 0 17 1 0 0
/proc/30093/statm: 45196 51 43 160 0 45034 0

[startup+0.0845199 s]
/proc/loadavg: 0.92 1.01 1.10 3/77 30093
/proc/meminfo: memFree=1777584/2055920 swapFree=4172616/4192956
[pid=30093] ppid=30091 vsize=180784 CPUtime=0.08
/proc/30093/stat : 30093 (kcnfs-smp) R 30091 30093 29013 0 -1 4194304 66 0 0 0 8 0 0 0 18 0 1 0 334276933 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/30093/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 180784

[startup+0.101521 s]
/proc/loadavg: 0.92 1.01 1.10 3/77 30093
/proc/meminfo: memFree=1777584/2055920 swapFree=4172616/4192956
[pid=30093] ppid=30091 vsize=180916 CPUtime=0.09
/proc/30093/stat : 30093 (kcnfs-smp) R 30091 30093 29013 0 -1 4194304 117 0 0 0 9 0 0 0 18 0 1 0 334276933 185257984 102 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/30093/statm: 45229 103 48 160 0 45067 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 180916

[startup+0.301541 s]
/proc/loadavg: 0.92 1.01 1.10 3/77 30093
/proc/meminfo: memFree=1777584/2055920 swapFree=4172616/4192956
[pid=30093] ppid=30091 vsize=191476 CPUtime=0.29
/proc/30093/stat : 30093 (kcnfs-smp) R 30091 30093 29013 0 -1 4194304 2752 0 0 0 28 1 0 0 19 0 1 0 334276933 196071424 2737 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/30093/statm: 47869 2738 48 160 0 47707 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 191476

[startup+0.701578 s]
/proc/loadavg: 0.92 1.01 1.10 3/77 30093
/proc/meminfo: memFree=1777584/2055920 swapFree=4172616/4192956
[pid=30093] ppid=30091 vsize=216620 CPUtime=0.69
/proc/30093/stat : 30093 (kcnfs-smp) R 30091 30093 29013 0 -1 4194304 15511 0 0 0 62 7 0 0 22 0 1 0 334276933 221818880 15495 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134542374 0 0 4096 0 0 0 0 17 1 0 0
/proc/30093/statm: 54155 15495 51 160 0 53993 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 216620

[startup+1.50267 s]
/proc/loadavg: 0.92 1.01 1.10 3/79 30096
/proc/meminfo: memFree=1681176/2055920 swapFree=4172616/4192956
[pid=30093] ppid=30091 vsize=216156 CPUtime=1.16
/proc/30093/stat : 30093 (kcnfs-smp) R 30091 30093 29013 0 -1 4194304 32600 0 0 0 99 17 0 0 25 0 1 0 334276933 221343744 20952 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720545 0 0 4096 0 0 0 0 17 0 0 0
/proc/30093/statm: 54039 20952 66 160 0 53877 0
[pid=30095] ppid=30093 vsize=216156 CPUtime=0.41
/proc/30095/stat : 30095 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3160 0 0 0 40 1 0 0 25 0 1 0 334277028 221343744 20965 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 1 0 0
/proc/30095/statm: 54039 20965 66 160 0 53877 0
Current children cumulated CPU time (s) 1.57
Current children cumulated vsize (KiB) 432312

[startup+3.10183 s]
/proc/loadavg: 0.92 1.01 1.10 7/83 30099
/proc/meminfo: memFree=1628664/2055920 swapFree=4172616/4192956
[pid=30093] ppid=30091 vsize=216156 CPUtime=1.42
/proc/30093/stat : 30093 (kcnfs-smp) S 30091 30093 29013 0 -1 4194304 41401 0 0 0 119 23 0 0 25 0 1 0 334276933 221343744 20956 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/30093/statm: 54039 20956 66 160 0 53877 0
[pid=30095] ppid=30093 vsize=216156 CPUtime=1.01
/proc/30095/stat : 30095 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3263 0 0 0 100 1 0 0 25 0 1 0 334277028 221343744 20972 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720348 0 0 4096 2 0 0 0 17 1 0 0
/proc/30095/statm: 54039 20972 66 160 0 53877 0
[pid=30096] ppid=30093 vsize=216156 CPUtime=0.72
/proc/30096/stat : 30096 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3251 0 0 0 70 2 0 0 25 0 1 0 334277033 221343744 20969 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720388 0 0 4096 0 0 0 0 17 1 0 0
/proc/30096/statm: 54039 20969 66 160 0 53877 0
[pid=30097] ppid=30093 vsize=216156 CPUtime=0.77
/proc/30097/stat : 30097 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3197 0 0 0 76 1 0 0 25 0 1 0 334277055 221343744 20967 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 1 0 0
/proc/30097/statm: 54039 20967 66 160 0 53877 0
[pid=30098] ppid=30093 vsize=216156 CPUtime=0.53
/proc/30098/stat : 30098 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3201 0 0 0 51 2 0 0 25 0 1 0 334277074 221343744 20966 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720438 0 0 4096 0 0 0 0 17 0 0 0
/proc/30098/statm: 54039 20966 66 160 0 53877 0
[pid=30099] ppid=30093 vsize=216156 CPUtime=0.3
/proc/30099/stat : 30099 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3120 0 0 0 28 2 0 0 25 0 1 0 334277111 221343744 20971 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720296 0 0 4096 2 0 0 0 17 0 0 0
/proc/30099/statm: 54039 20971 66 160 0 53877 0
Current children cumulated CPU time (s) 4.75
Current children cumulated vsize (KiB) 1296936



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20283 s]
/proc/loadavg: 0.92 1.01 1.10 9/86 30102
/proc/meminfo: memFree=1592288/2055920 swapFree=4172616/4192956
[pid=30093] ppid=30091 vsize=216156 CPUtime=1.42
/proc/30093/stat : 30093 (kcnfs-smp) S 30091 30093 29013 0 -1 4194304 41401 0 0 0 119 23 0 0 25 0 1 0 334276933 221343744 20956 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/30093/statm: 54039 20956 66 160 0 53877 0
[pid=30095] ppid=30093 vsize=216156 CPUtime=1.01
/proc/30095/stat : 30095 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3263 0 0 0 100 1 0 0 25 0 1 0 334277028 221343744 20972 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720348 0 0 4096 2 0 0 0 17 1 0 0
/proc/30095/statm: 54039 20972 66 160 0 53877 0
[pid=30096] ppid=30093 vsize=216156 CPUtime=0.79
/proc/30096/stat : 30096 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3254 0 0 0 77 2 0 0 25 0 1 0 334277033 221343744 20970 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720322 0 0 4096 0 0 0 0 17 1 0 0
/proc/30096/statm: 54039 20970 66 160 0 53877 0
[pid=30097] ppid=30093 vsize=216156 CPUtime=0.82
/proc/30097/stat : 30097 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3265 0 0 0 80 2 0 0 25 0 1 0 334277055 221343744 20968 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 1 0 0
/proc/30097/statm: 54039 20968 66 160 0 53877 0
[pid=30098] ppid=30093 vsize=216156 CPUtime=0.53
/proc/30098/stat : 30098 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3201 0 0 0 51 2 0 0 25 0 1 0 334277074 221343744 20966 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720438 0 0 4096 0 0 0 0 17 0 0 0
/proc/30098/statm: 54039 20966 66 160 0 53877 0
[pid=30099] ppid=30093 vsize=216156 CPUtime=0.4
/proc/30099/stat : 30099 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3149 0 0 0 38 2 0 0 25 0 1 0 334277111 221343744 20972 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 0 0 0
/proc/30099/statm: 54039 20972 66 160 0 53877 0
[pid=30100] ppid=30093 vsize=216156 CPUtime=0.22
/proc/30100/stat : 30100 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3106 0 0 0 20 2 0 0 25 0 1 0 334277146 221343744 20967 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 0 0 0
/proc/30100/statm: 54039 20967 66 160 0 53877 0
[pid=30101] ppid=30093 vsize=216156 CPUtime=0.11
/proc/30101/stat : 30101 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 3095 0 0 0 10 1 0 0 25 0 1 0 334277188 221343744 20961 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 0 0 0
/proc/30101/statm: 54039 20961 66 160 0 53877 0
[pid=30102] ppid=30093 vsize=216156 CPUtime=0.02
/proc/30102/stat : 30102 (kcnfs-smp) R 30093 30093 29013 0 -1 4194368 2204 0 0 0 1 1 0 0 25 0 1 0 334277233 221343744 20956 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720302 0 0 4096 0 0 0 0 17 1 0 0
/proc/30102/statm: 54039 20956 66 160 0 53877 0
Current children cumulated CPU time (s) 5.32
Current children cumulated vsize (KiB) 1945404

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

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

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 30093 and gives childrusage.ru_utime.tv_sec=1 childrusage.ru_utime.tv_usec=196818 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=244962
CPU time returned by wait4() is 1.44178
while last known CPU time is 5.32

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

Real time (s): 3.22585
CPU time (s): 5.32
CPU user time (s): 4.96
CPU system time (s): 0.36
CPU usage (%): 164.918
Max. virtual memory (cumulated for all children) (KiB): 1945404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.19682
system time used= 0.244962
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 41401
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= 44

runsolver used 0.006998 second user time and 0.023996 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Tue Mar  6 01:07:05 UTC 2007

IDJOB= 329538
IDBENCH= 20542
IDSOLVER= 112
FILE ID= node14/329538-1173143225

PBS_JOBID= 4014963

Free space on /tmp= 66543 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2002_31_1_rule_1/SAT_dat.k40.cnf
COMMAND LINE= /tmp/evaluation/329538-1173143225/kcnfs-smp /tmp/evaluation/329538-1173143225/instance-329538-1173143225.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-329538-1173143225 -o ROOT/results/node14/solver-329538-1173143225 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/329538-1173143225/kcnfs-smp /tmp/evaluation/329538-1173143225/instance-329538-1173143225.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  2072f9709ddb4f70f2210d26eee094a7

RANDOM SEED= 47703221

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.216
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		: 3000.216
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:       1778056 kB
Buffers:         35724 kB
Cached:         155764 kB
SwapCached:       2448 kB
Active:         106428 kB
Inactive:       121812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1778056 kB
SwapTotal:     4192956 kB
SwapFree:      4172616 kB
Dirty:            9064 kB
Writeback:           0 kB
Mapped:          44744 kB
Slab:            35196 kB
Committed_AS:  1190364 kB
PageTables:       1736 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= 66543 MiB

End job on node14 on Tue Mar  6 01:07:10 UTC 2007