Trace number 301353

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 253.318 253.415

General information on the benchmark

Namerandom/LargeSize/5SAT/v1000/
unif-k5-r20-v1000-c20000-S274221008-04.cnf
MD5SUM3d0711206cfa2121733d618d99033e11
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark327.056
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)

252.94/253.06	*** glibc detected *** double free or corruption (out): 0x0d4262a8 ***

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/node6/watcher-301353-1171965401 -o ROOT/results/node6/solver-301353-1171965401 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301353-1171965401/mmisat /tmp/evaluation/301353-1171965401/instance-301353-1171965401.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: 1.00 1.00 1.00 3/77 30485
/proc/meminfo: memFree=1318072/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=1176 CPUtime=0
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 169 0 0 0 0 0 0 0 18 0 1 0 216494859 1204224 152 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 294 152 81 214 0 76 0

[startup+0.107849 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 30485
/proc/meminfo: memFree=1318072/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=1972 CPUtime=0.1
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 359 0 0 0 10 0 0 0 18 0 1 0 216494859 2019328 342 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 493 342 81 214 0 275 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1972

[startup+0.51993 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 30485
/proc/meminfo: memFree=1318072/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=3160 CPUtime=0.51
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 660 0 0 0 51 0 0 0 22 0 1 0 216494859 3235840 643 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 790 643 81 214 0 572 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3160

[startup+1.34009 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1314736/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=4480 CPUtime=1.33
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 996 0 0 0 133 0 0 0 25 0 1 0 216494859 4587520 979 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517724 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 1120 979 81 214 0 902 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 4480

[startup+2.97641 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1313264/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=6328 CPUtime=2.96
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 1432 0 0 0 296 0 0 0 25 0 1 0 216494859 6479872 1415 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 1582 1415 81 214 0 1364 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 6328

[startup+6.25606 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1310768/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=8176 CPUtime=6.24
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 1904 0 0 0 624 0 0 0 25 0 1 0 216494859 8372224 1887 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 2044 1887 81 214 0 1826 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 8176

[startup+12.7113 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1309040/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=9628 CPUtime=12.69
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 2281 0 0 0 1269 0 0 0 25 0 1 0 216494859 9859072 2264 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 2407 2264 81 214 0 2189 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 9628

[startup+25.5119 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1307696/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=10948 CPUtime=25.49
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 2610 0 0 0 2548 1 0 0 25 0 1 0 216494859 11210752 2593 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 2737 2593 81 214 0 2519 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 10948

[startup+51.1259 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1306160/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=12532 CPUtime=51.1
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 2987 0 0 0 5108 2 0 0 25 0 1 0 216494859 12832768 2970 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 3133 2970 81 214 0 2915 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 12532

[startup+102.349 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1304112/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=14512 CPUtime=102.3
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 3495 0 0 0 10227 3 0 0 25 0 1 0 216494859 14860288 3478 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 3628 3478 81 214 0 3410 0
Current children cumulated CPU time (s) 102.3
Current children cumulated vsize (KiB) 14512

[startup+162.378 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1302256/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=16360 CPUtime=162.31
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 3945 0 0 0 16227 4 0 0 25 0 1 0 216494859 16752640 3928 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 4090 3928 81 214 0 3872 0
Current children cumulated CPU time (s) 162.31
Current children cumulated vsize (KiB) 16360

[startup+222.41 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1300720/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=17812 CPUtime=222.32
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 4327 0 0 0 22227 5 0 0 25 0 1 0 216494859 18239488 4310 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 4453 4310 81 214 0 4235 0
Current children cumulated CPU time (s) 222.32
Current children cumulated vsize (KiB) 17812

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

[startup+236.036 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1266352/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=52052 CPUtime=235.94
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 12898 0 0 0 23586 8 0 0 25 0 1 0 216494859 53301248 12881 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523588 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 13013 12881 91 214 0 12795 0
Current children cumulated CPU time (s) 235.94
Current children cumulated vsize (KiB) 52052

[startup+242.593 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1232368/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=86008 CPUtime=242.49
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 21388 0 0 0 24238 11 0 0 25 0 1 0 216494859 88072192 21371 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523287 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 21502 21371 91 214 0 21284 0
Current children cumulated CPU time (s) 242.49
Current children cumulated vsize (KiB) 86008

[startup+249.149 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1232368/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=86008 CPUtime=249.05
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 21388 0 0 0 24893 12 0 0 25 0 1 0 216494859 88072192 21371 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523600 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 21502 21371 91 214 0 21284 0
Current children cumulated CPU time (s) 249.05
Current children cumulated vsize (KiB) 86008

[startup+250.788 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1232368/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=86008 CPUtime=250.69
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 21388 0 0 0 25057 12 0 0 25 0 1 0 216494859 88072192 21371 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523599 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 21502 21371 91 214 0 21284 0
Current children cumulated CPU time (s) 250.69
Current children cumulated vsize (KiB) 86008

[startup+252.425 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1232368/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=86008 CPUtime=252.33
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 21388 0 0 0 25221 12 0 0 25 0 1 0 216494859 88072192 21371 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134542649 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 21502 21371 91 214 0 21284 0
Current children cumulated CPU time (s) 252.33
Current children cumulated vsize (KiB) 86008

[startup+252.837 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1232368/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=86008 CPUtime=252.74
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4194304 21388 0 0 0 25262 12 0 0 25 0 1 0 216494859 88072192 21371 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523596 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 21502 21371 91 214 0 21284 0
Current children cumulated CPU time (s) 252.74
Current children cumulated vsize (KiB) 86008

[startup+253.245 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1232368/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=86008 CPUtime=253.14
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4195840 21395 0 0 0 25285 29 0 0 25 0 1 0 216494859 88072192 21375 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 21502 21375 95 214 0 21284 0
Current children cumulated CPU time (s) 253.14
Current children cumulated vsize (KiB) 86008

[startup+253.347 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 30486
/proc/meminfo: memFree=1232368/2055924 swapFree=4192812/4192956
[pid=30485] ppid=30483 vsize=86008 CPUtime=253.24
/proc/30485/stat : 30485 (mmisat) R 30483 30485 29623 0 -1 4195840 21395 0 0 0 25285 39 0 0 25 0 1 0 216494859 88072192 21375 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/30485/statm: 21502 21375 95 214 0 21284 0
Current children cumulated CPU time (s) 253.24
Current children cumulated vsize (KiB) 86008

Child ended because it received signal 6 (SIGABRT)
Real time (s): 253.415
CPU time (s): 253.318
CPU user time (s): 252.854
CPU system time (s): 0.464929
CPU usage (%): 99.962
Max. virtual memory (cumulated for all children) (KiB): 86008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 252.854
system time used= 0.464929
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21398
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= 305

runsolver used 0.280957 second user time and 0.606907 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Tue Feb 20 09:56:41 UTC 2007

IDJOB= 301353
IDBENCH= 20057
IDSOLVER= 108
FILE ID= node6/301353-1171965401

PBS_JOBID= 3849013

Free space on /tmp= 66551 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v1000/unif-k5-r20-v1000-c20000-S274221008-04.cnf
COMMAND LINE= /tmp/evaluation/301353-1171965401/mmisat /tmp/evaluation/301353-1171965401/instance-301353-1171965401.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-301353-1171965401 -o ROOT/results/node6/solver-301353-1171965401 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301353-1171965401/mmisat /tmp/evaluation/301353-1171965401/instance-301353-1171965401.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  3d0711206cfa2121733d618d99033e11

RANDOM SEED= 376042919

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.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		: 3000.277
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		: 3000.277
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:      2055924 kB
MemFree:       1318480 kB
Buffers:         70988 kB
Cached:         531356 kB
SwapCached:          0 kB
Active:         346788 kB
Inactive:       312420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1318480 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1592 kB
Writeback:           0 kB
Mapped:          75700 kB
Slab:            63788 kB
Committed_AS:   808036 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= 66467 MiB

End job on node6 on Tue Feb 20 10:00:55 UTC 2007