Trace number 301148

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 36.1165 36.1275

General information on the benchmark

Namerandom/LargeSize/5SAT/v600/
unif-k5-r20-v600-c12000-S883927618-10.cnf
MD5SUMf65bec0a86c887b34d745bc7beb4cebd
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark5.40318
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses12000
Sum of the clauses size60000
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 512000
Number of clauses of size over 50

Solver Data (download as text)

35.94/36.06	*** glibc detected *** free(): invalid next size (normal): 0x08ec5930 ***

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/node14/watcher-301148-1171955137 -o ROOT/results/node14/solver-301148-1171955137 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301148-1171955137/mmisat /tmp/evaluation/301148-1171955137/instance-301148-1171955137.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: 0.96 1.01 1.00 3/77 12339
/proc/meminfo: memFree=1353720/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=1176 CPUtime=0
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 215468145 1204224 132 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 294 132 81 214 0 76 0

[startup+0.107784 s]
/proc/loadavg: 0.96 1.01 1.00 3/77 12339
/proc/meminfo: memFree=1353720/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=1708 CPUtime=0.1
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 280 0 0 0 10 0 0 0 18 0 1 0 215468145 1748992 263 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 427 263 81 214 0 209 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1708

[startup+0.515822 s]
/proc/loadavg: 0.96 1.01 1.00 3/77 12339
/proc/meminfo: memFree=1353720/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=2500 CPUtime=0.51
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 483 0 0 0 51 0 0 0 21 0 1 0 215468145 2560000 466 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 625 466 81 214 0 407 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2500

[startup+1.3379 s]
/proc/loadavg: 0.96 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1351408/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=3424 CPUtime=1.33
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 711 0 0 0 133 0 0 0 25 0 1 0 215468145 3506176 694 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 856 694 81 214 0 638 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3424

[startup+2.97905 s]
/proc/loadavg: 0.96 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1350384/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=4480 CPUtime=2.96
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 988 0 0 0 296 0 0 0 25 0 1 0 215468145 4587520 971 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517712 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 1120 971 81 214 0 902 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4480

[startup+6.25536 s]
/proc/loadavg: 0.97 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1348976/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=5536 CPUtime=6.24
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 1235 0 0 0 624 0 0 0 25 0 1 0 215468145 5668864 1218 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 1384 1218 81 214 0 1166 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 5536

[startup+12.711 s]
/proc/loadavg: 0.97 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1348016/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=6328 CPUtime=12.7
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 1441 0 0 0 1269 1 0 0 25 0 1 0 215468145 6479872 1424 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 1582 1424 81 214 0 1364 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 6328

[startup+25.5122 s]
/proc/loadavg: 0.97 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1347136/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=7120 CPUtime=25.49
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 1658 0 0 0 2548 1 0 0 25 0 1 0 215468145 7290880 1641 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 1780 1641 81 214 0 1562 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 7120

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

[startup+26.2312 s]
/proc/loadavg: 0.97 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1347072/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=7252 CPUtime=26.21
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 1668 0 0 0 2620 1 0 0 25 0 1 0 215468145 7426048 1651 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 1813 1651 81 214 0 1595 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 7252

[startup+32.7889 s]
/proc/loadavg: 0.98 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1346752/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=7516 CPUtime=32.76
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 1745 0 0 0 3275 1 0 0 25 0 1 0 215468145 7696384 1728 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 1879 1728 81 214 0 1661 0
Current children cumulated CPU time (s) 32.76
Current children cumulated vsize (KiB) 7516

[startup+34.425 s]
/proc/loadavg: 0.98 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1346688/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=7648 CPUtime=34.4
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 1763 0 0 0 3439 1 0 0 25 0 1 0 215468145 7831552 1746 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 1912 1746 81 214 0 1694 0
Current children cumulated CPU time (s) 34.4
Current children cumulated vsize (KiB) 7648

[startup+35.2451 s]
/proc/loadavg: 0.98 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1346688/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=7648 CPUtime=35.22
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 1772 0 0 0 3521 1 0 0 25 0 1 0 215468145 7831552 1755 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 1912 1755 81 214 0 1694 0
Current children cumulated CPU time (s) 35.22
Current children cumulated vsize (KiB) 7648

[startup+35.6551 s]
/proc/loadavg: 0.98 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1346688/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=14288 CPUtime=35.63
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4194304 3445 0 0 0 3561 2 0 0 25 0 1 0 215468145 14630912 3428 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134518346 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 3572 3428 85 214 0 3354 0
Current children cumulated CPU time (s) 35.63
Current children cumulated vsize (KiB) 14288

[startup+36.0672 s]
/proc/loadavg: 0.98 1.01 1.00 2/78 12340
/proc/meminfo: memFree=1339328/2055920 swapFree=4192812/4192956
[pid=12339] ppid=12337 vsize=14940 CPUtime=36.05
/proc/12339/stat : 12339 (mmisat) R 12337 12339 10946 0 -1 4195840 5244 0 0 0 3602 3 0 0 25 0 1 0 215468145 15298560 3601 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/12339/statm: 3735 3601 93 214 0 3517 0
Current children cumulated CPU time (s) 36.05
Current children cumulated vsize (KiB) 14940

Child ended because it received signal 6 (SIGABRT)
Real time (s): 36.1275
CPU time (s): 36.1165
CPU user time (s): 36.0245
CPU system time (s): 0.091986
CPU usage (%): 99.9696
Max. virtual memory (cumulated for all children) (KiB): 14940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 36.0245
system time used= 0.091986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5252
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= 77

runsolver used 0.043993 second user time and 0.093985 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Tue Feb 20 07:05:37 UTC 2007

IDJOB= 301148
IDBENCH= 20052
IDSOLVER= 108
FILE ID= node14/301148-1171955137

PBS_JOBID= 3848976

Free space on /tmp= 66550 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v600/unif-k5-r20-v600-c12000-S883927618-10.cnf
COMMAND LINE= /tmp/evaluation/301148-1171955137/mmisat /tmp/evaluation/301148-1171955137/instance-301148-1171955137.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-301148-1171955137 -o ROOT/results/node14/solver-301148-1171955137 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301148-1171955137/mmisat /tmp/evaluation/301148-1171955137/instance-301148-1171955137.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  f65bec0a86c887b34d745bc7beb4cebd

RANDOM SEED= 416263466

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:       1354128 kB
Buffers:         65588 kB
Cached:         499764 kB
SwapCached:          0 kB
Active:         330076 kB
Inactive:       289356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1354128 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1384 kB
Writeback:           0 kB
Mapped:          73000 kB
Slab:            67952 kB
Committed_AS:   793064 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= 66536 MiB

End job on node14 on Tue Feb 20 07:06:14 UTC 2007