Trace number 301476

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
Mmisat 2007-02-08Signal 236.741 236.803

General information on the benchmark

Namerandom/LargeSize/5SAT/v1000/
unif-k5-r20-v1000-c20000-S1463391112-08.cnf
MD5SUMc7cd1a89069c2486ed900def4ca19b75
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark623.079
Satisfiable
(Un)Satisfiability was proved
Number of variables1000
Number of clauses20000
Sum of the clauses size100000
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 520000
Number of clauses of size over 50

Solver Data (download as text)

236.48/236.59	*** glibc detected *** double free or corruption (out): 0x0b304300 ***

Verifier Data (download as text)

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

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node17/watcher-301476-1171972536 -o ROOT/results/node17/solver-301476-1171972536 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301476-1171972536/mmisat /tmp/evaluation/301476-1171972536/instance-301476-1171972536.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 0.99 3/77 3322
/proc/meminfo: memFree=1556224/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=1176 CPUtime=0
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 169 0 0 0 0 0 0 0 18 0 1 0 217207852 1204224 152 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 294 152 81 214 0 76 0

[startup+0.107394 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 3322
/proc/meminfo: memFree=1556224/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=1972 CPUtime=0.1
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 358 0 0 0 10 0 0 0 18 0 1 0 217207852 2019328 341 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 493 341 81 214 0 275 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1972

[startup+0.515436 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 3322
/proc/meminfo: memFree=1556224/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=3160 CPUtime=0.5
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 658 0 0 0 50 0 0 0 21 0 1 0 217207852 3235840 641 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 790 641 81 214 0 572 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 3160

[startup+1.33752 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1552952/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=4480 CPUtime=1.33
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 996 0 0 0 133 0 0 0 25 0 1 0 217207852 4587520 979 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 1120 979 81 214 0 902 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 4480

[startup+2.97969 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1551480/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=6196 CPUtime=2.97
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 1409 0 0 0 297 0 0 0 25 0 1 0 217207852 6344704 1392 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 1549 1392 81 214 0 1331 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 6196

[startup+6.25603 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1549304/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=7780 CPUtime=6.24
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 1822 0 0 0 624 0 0 0 25 0 1 0 217207852 7966720 1805 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 1945 1805 81 214 0 1727 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 7780

[startup+12.7127 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1547640/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=9232 CPUtime=12.7
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 2169 0 0 0 1270 0 0 0 25 0 1 0 217207852 9453568 2152 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 2308 2152 81 214 0 2090 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 9232

[startup+25.513 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1546232/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=10684 CPUtime=25.5
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 2526 0 0 0 2549 1 0 0 25 0 1 0 217207852 10940416 2509 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 2671 2509 81 214 0 2453 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 10684

[startup+51.1277 s]
/proc/loadavg: 0.96 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1544504/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=12268 CPUtime=51.1
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 2934 0 0 0 5109 1 0 0 25 0 1 0 217207852 12562432 2917 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 3067 2917 81 214 0 2849 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 12268

[startup+102.347 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1542456/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=14380 CPUtime=102.31
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 3447 0 0 0 10229 2 0 0 25 0 1 0 217207852 14725120 3430 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 3595 3430 81 214 0 3377 0
Current children cumulated CPU time (s) 102.31
Current children cumulated vsize (KiB) 14380

[startup+162.384 s]
/proc/loadavg: 0.99 0.98 0.99 3/78 3323
/proc/meminfo: memFree=1540536/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=16228 CPUtime=162.33
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 3904 0 0 0 16230 3 0 0 25 0 1 0 217207852 16617472 3887 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 4057 3887 81 214 0 3839 0
Current children cumulated CPU time (s) 162.33
Current children cumulated vsize (KiB) 16228

[startup+222.415 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1538936/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=17680 CPUtime=222.35
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 4292 0 0 0 22231 4 0 0 25 0 1 0 217207852 18104320 4275 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 4420 4275 81 214 0 4202 0
Current children cumulated CPU time (s) 222.35
Current children cumulated vsize (KiB) 17680

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

[startup+222.927 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1538936/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=17680 CPUtime=222.86
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 4296 0 0 0 22282 4 0 0 25 0 1 0 217207852 18104320 4279 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 4420 4279 81 214 0 4202 0
Current children cumulated CPU time (s) 222.86
Current children cumulated vsize (KiB) 17680

[startup+229.485 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1538744/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=17944 CPUtime=229.42
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 4335 0 0 0 22938 4 0 0 25 0 1 0 217207852 18374656 4318 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 4486 4318 81 214 0 4268 0
Current children cumulated CPU time (s) 229.42
Current children cumulated vsize (KiB) 17944

[startup+232.764 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1538680/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=17944 CPUtime=232.69
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 4355 0 0 0 23265 4 0 0 25 0 1 0 217207852 18374656 4338 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 4486 4338 81 214 0 4268 0
Current children cumulated CPU time (s) 232.69
Current children cumulated vsize (KiB) 17944

[startup+234.404 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1538616/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=17944 CPUtime=234.34
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 4365 0 0 0 23430 4 0 0 25 0 1 0 217207852 18374656 4348 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 4486 4348 81 214 0 4268 0
Current children cumulated CPU time (s) 234.34
Current children cumulated vsize (KiB) 17944

[startup+236.044 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1504504/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=52040 CPUtime=235.97
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 12885 0 0 0 23591 6 0 0 25 0 1 0 217207852 53288960 12868 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134553296 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 13010 12868 86 214 0 12792 0
Current children cumulated CPU time (s) 235.97
Current children cumulated vsize (KiB) 52040

[startup+236.452 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1504504/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=52040 CPUtime=236.38
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4194304 12886 0 0 0 23632 6 0 0 25 0 1 0 217207852 53288960 12869 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523284 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 13010 12869 87 214 0 12792 0
Current children cumulated CPU time (s) 236.38
Current children cumulated vsize (KiB) 52040

[startup+236.656 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1488312/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=52052 CPUtime=236.59
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4195840 12903 0 0 0 23646 13 0 0 25 0 1 0 217207852 53301248 12883 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 13013 12883 95 214 0 12795 0
Current children cumulated CPU time (s) 236.59
Current children cumulated vsize (KiB) 52052

[startup+236.762 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 3323
/proc/meminfo: memFree=1488312/2055920 swapFree=4192812/4192956
[pid=3322] ppid=3320 vsize=52052 CPUtime=236.69
/proc/3322/stat : 3322 (mmisat) R 3320 3322 3178 0 -1 4195840 12903 0 0 0 23646 23 0 0 25 0 1 0 217207852 53301248 12883 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/3322/statm: 13013 12883 95 214 0 12795 0
Current children cumulated CPU time (s) 236.69
Current children cumulated vsize (KiB) 52052

Child ended because it received signal 6 (SIGABRT)
Real time (s): 236.803
CPU time (s): 236.741
CPU user time (s): 236.467
CPU system time (s): 0.273958
CPU usage (%): 99.974
Max. virtual memory (cumulated for all children) (KiB): 52052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 236.467
system time used= 0.273958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12909
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= 7
involuntary context switches= 381

runsolver used 0.290955 second user time and 0.550916 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue Feb 20 11:55:36 UTC 2007

IDJOB= 301476
IDBENCH= 20060
IDSOLVER= 108
FILE ID= node17/301476-1171972536

PBS_JOBID= 3849031

Free space on /tmp= 66545 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v1000/unif-k5-r20-v1000-c20000-S1463391112-08.cnf
COMMAND LINE= /tmp/evaluation/301476-1171972536/mmisat /tmp/evaluation/301476-1171972536/instance-301476-1171972536.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-301476-1171972536 -o ROOT/results/node17/solver-301476-1171972536 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301476-1171972536/mmisat /tmp/evaluation/301476-1171972536/instance-301476-1171972536.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  c7cd1a89069c2486ed900def4ca19b75

RANDOM SEED= 216831776

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.229
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		: 3000.229
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:       1556696 kB
Buffers:         53936 kB
Cached:         327884 kB
SwapCached:          0 kB
Active:         284464 kB
Inactive:       141844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1556696 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1636 kB
Writeback:           0 kB
Mapped:          63352 kB
Slab:            58496 kB
Committed_AS:   787916 kB
PageTables:       1748 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= 66495 MiB

End job on node17 on Tue Feb 20 11:59:33 UTC 2007