Trace number 301189

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 35.9985 36.0102

General information on the benchmark

Namerandom/LargeSize/5SAT/v600/
unif-k5-r20-v600-c12000-S2129616968-04.cnf
MD5SUMbbc9d27dee29f57f9dd4a8988410f8b2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark13.6409
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)

35.83/35.95	*** glibc detected *** free(): invalid next size (normal): 0x08ec5b50 ***

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/node19/watcher-301189-1171956923 -o ROOT/results/node19/solver-301189-1171956923 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301189-1171956923/mmisat /tmp/evaluation/301189-1171956923/instance-301189-1171956923.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 8597
/proc/meminfo: memFree=1373296/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=1176 CPUtime=0
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 215646348 1204224 132 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134688215 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 294 132 81 214 0 76 0

[startup+0.107164 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8597
/proc/meminfo: memFree=1373296/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=1708 CPUtime=0.1
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 280 0 0 0 10 0 0 0 18 0 1 0 215646348 1748992 263 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 427 263 81 214 0 209 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1708

[startup+0.515209 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 8597
/proc/meminfo: memFree=1373296/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=2500 CPUtime=0.51
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 483 0 0 0 51 0 0 0 21 0 1 0 215646348 2560000 466 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 625 466 81 214 0 407 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2500

[startup+1.3353 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1370984/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=3424 CPUtime=1.33
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 711 0 0 0 133 0 0 0 25 0 1 0 215646348 3506176 694 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 856 694 81 214 0 638 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3424

[startup+2.97148 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1369960/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=4480 CPUtime=2.96
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 989 0 0 0 296 0 0 0 25 0 1 0 215646348 4587520 972 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 1120 972 81 214 0 902 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4480

[startup+6.25283 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1368488/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=5668 CPUtime=6.24
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 1266 0 0 0 624 0 0 0 25 0 1 0 215646348 5804032 1249 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 1417 1249 81 214 0 1199 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 5668

[startup+12.7035 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1367528/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=6460 CPUtime=12.69
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 1467 0 0 0 1269 0 0 0 25 0 1 0 215646348 6615040 1450 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 1615 1450 81 214 0 1397 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6460

[startup+25.5119 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1366696/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=7252 CPUtime=25.49
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 1664 0 0 0 2549 0 0 0 25 0 1 0 215646348 7426048 1647 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 1813 1647 81 214 0 1595 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 7252

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

[startup+26.23 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1366632/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=7252 CPUtime=26.21
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 1673 0 0 0 2621 0 0 0 25 0 1 0 215646348 7426048 1656 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 1813 1656 81 214 0 1595 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 7252

[startup+32.7887 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1366312/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=7516 CPUtime=32.76
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 1748 0 0 0 3276 0 0 0 25 0 1 0 215646348 7696384 1731 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 1879 1731 81 214 0 1661 0
Current children cumulated CPU time (s) 32.76
Current children cumulated vsize (KiB) 7516

[startup+34.4249 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1366248/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=7648 CPUtime=34.4
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 1765 0 0 0 3440 0 0 0 25 0 1 0 215646348 7831552 1748 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 1912 1748 81 214 0 1694 0
Current children cumulated CPU time (s) 34.4
Current children cumulated vsize (KiB) 7648

[startup+35.245 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1366248/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=7648 CPUtime=35.22
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 1773 0 0 0 3522 0 0 0 25 0 1 0 215646348 7831552 1756 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 1912 1756 81 214 0 1694 0
Current children cumulated CPU time (s) 35.22
Current children cumulated vsize (KiB) 7648

[startup+35.653 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1366248/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=14400 CPUtime=35.63
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 5106 0 0 0 3562 1 0 0 25 0 1 0 215646348 14745600 3464 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523161 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 3600 3464 85 214 0 3382 0
Current children cumulated CPU time (s) 35.63
Current children cumulated vsize (KiB) 14400

[startup+35.857 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1366248/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=14928 CPUtime=35.83
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4194304 5227 0 0 0 3582 1 0 0 25 0 1 0 215646348 15286272 3585 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134524262 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 3732 3585 87 214 0 3514 0
Current children cumulated CPU time (s) 35.83
Current children cumulated vsize (KiB) 14928

[startup+35.9591 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 8598
/proc/meminfo: memFree=1366248/2055920 swapFree=4192812/4192956
[pid=8597] ppid=8595 vsize=14940 CPUtime=35.94
/proc/8597/stat : 8597 (mmisat) R 8595 8597 7160 0 -1 4195840 5250 0 0 0 3592 2 0 0 25 0 1 0 215646348 15298560 3605 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/8597/statm: 3735 3605 95 214 0 3517 0
Current children cumulated CPU time (s) 35.94
Current children cumulated vsize (KiB) 14940

Child ended because it received signal 6 (SIGABRT)
Real time (s): 36.0102
CPU time (s): 35.9985
CPU user time (s): 35.9215
CPU system time (s): 0.076988
CPU usage (%): 99.9677
Max. virtual memory (cumulated for all children) (KiB): 14940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 35.9215
system time used= 0.076988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5256
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= 41

runsolver used 0.043993 second user time and 0.092985 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Tue Feb 20 07:35:23 UTC 2007

IDJOB= 301189
IDBENCH= 20053
IDSOLVER= 108
FILE ID= node19/301189-1171956923

PBS_JOBID= 3848979

Free space on /tmp= 66545 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v600/unif-k5-r20-v600-c12000-S2129616968-04.cnf
COMMAND LINE= /tmp/evaluation/301189-1171956923/mmisat /tmp/evaluation/301189-1171956923/instance-301189-1171956923.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-301189-1171956923 -o ROOT/results/node19/solver-301189-1171956923 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301189-1171956923/mmisat /tmp/evaluation/301189-1171956923/instance-301189-1171956923.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  bbc9d27dee29f57f9dd4a8988410f8b2

RANDOM SEED= 559659887

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.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		: 3000.214
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	: 5931.00
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		: 3000.214
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:       1373640 kB
Buffers:         57732 kB
Cached:         505920 kB
SwapCached:          0 kB
Active:         293344 kB
Inactive:       314368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1373640 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1392 kB
Writeback:           0 kB
Mapped:          62952 kB
Slab:            60060 kB
Committed_AS:   885116 kB
PageTables:       1760 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= 66531 MiB

End job on node19 on Tue Feb 20 07:35:59 UTC 2007