Trace number 300287

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 123.478 123.513

General information on the benchmark

Namerandom/LargeSize/5SAT/v800/
unif-k5-r20-v800-c16000-S1059928571-06.cnf
MD5SUM04472b4b6b6792f6a66e445ec1cc3be0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark83.8173
Satisfiable
(Un)Satisfiability was proved
Number of variables800
Number of clauses16000
Sum of the clauses size80000
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 516000
Number of clauses of size over 50

Solver Data (download as text)

123.29/123.37	*** glibc detected *** double free or corruption (out): 0x0a1b9f78 ***

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/node4/watcher-300287-1171897510 -o ROOT/results/node4/solver-300287-1171897510 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/300287-1171897510/mmisat /tmp/evaluation/300287-1171897510/instance-300287-1171897510.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: 1.01 1.01 0.96 3/77 31179
/proc/meminfo: memFree=988264/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=1176 CPUtime=0
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 159 0 0 0 0 0 0 0 18 0 1 0 209705823 1204224 142 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 294 142 81 214 0 76 0

[startup+0.107297 s]
/proc/loadavg: 1.01 1.01 0.96 3/77 31179
/proc/meminfo: memFree=988264/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=1840 CPUtime=0.1
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 318 0 0 0 10 0 0 0 18 0 1 0 209705823 1884160 301 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517205 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 460 301 81 214 0 242 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1840

[startup+0.515336 s]
/proc/loadavg: 1.01 1.01 0.96 3/77 31179
/proc/meminfo: memFree=988264/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=2764 CPUtime=0.51
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 569 0 0 0 51 0 0 0 22 0 1 0 209705823 2830336 552 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 691 552 81 214 0 473 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2764

[startup+1.33541 s]
/proc/loadavg: 1.01 1.01 0.96 2/78 31180
/proc/meminfo: memFree=985504/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=3952 CPUtime=1.33
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 846 0 0 0 133 0 0 0 25 0 1 0 209705823 4046848 829 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 988 829 81 214 0 770 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3952

[startup+2.97157 s]
/proc/loadavg: 1.01 1.00 0.96 2/78 31180
/proc/meminfo: memFree=984288/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=5272 CPUtime=2.96
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 1188 0 0 0 296 0 0 0 25 0 1 0 209705823 5398528 1171 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 1318 1171 81 214 0 1100 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 5272

[startup+6.25388 s]
/proc/loadavg: 1.01 1.00 0.96 2/78 31180
/proc/meminfo: memFree=982560/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=6592 CPUtime=6.24
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 1504 0 0 0 624 0 0 0 25 0 1 0 209705823 6750208 1487 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517205 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 1648 1487 81 214 0 1430 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 6592

[startup+12.7065 s]
/proc/loadavg: 1.01 1.00 0.96 2/78 31180
/proc/meminfo: memFree=981280/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=7648 CPUtime=12.7
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 1786 0 0 0 1269 1 0 0 25 0 1 0 209705823 7831552 1769 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 1912 1769 81 214 0 1694 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 7648

[startup+25.5097 s]
/proc/loadavg: 1.00 1.00 0.96 2/78 31180
/proc/meminfo: memFree=980192/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=8836 CPUtime=25.49
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 2060 0 0 0 2548 1 0 0 25 0 1 0 209705823 9048064 2043 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 2209 2043 81 214 0 1991 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 8836

[startup+51.1222 s]
/proc/loadavg: 1.08 1.02 0.96 2/78 31180
/proc/meminfo: memFree=978912/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=10024 CPUtime=51.1
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 2378 0 0 0 5108 2 0 0 25 0 1 0 209705823 10264576 2361 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 2506 2361 81 214 0 2288 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 10024

[startup+102.338 s]
/proc/loadavg: 1.03 1.01 0.96 2/78 31180
/proc/meminfo: memFree=977120/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=11740 CPUtime=102.3
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 2801 0 0 0 10227 3 0 0 25 0 1 0 209705823 12021760 2784 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 2935 2784 81 214 0 2717 0
Current children cumulated CPU time (s) 102.3
Current children cumulated vsize (KiB) 11740

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

[startup+104.9 s]
/proc/loadavg: 1.03 1.01 0.96 2/78 31180
/proc/meminfo: memFree=977056/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=11872 CPUtime=104.86
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 2819 0 0 0 10483 3 0 0 25 0 1 0 209705823 12156928 2802 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 2968 2802 81 214 0 2750 0
Current children cumulated CPU time (s) 104.86
Current children cumulated vsize (KiB) 11872

[startup+111.454 s]
/proc/loadavg: 1.03 1.01 0.96 2/78 31180
/proc/meminfo: memFree=976864/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=12004 CPUtime=111.41
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 2863 0 0 0 11138 3 0 0 25 0 1 0 209705823 12292096 2846 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 3001 2846 81 214 0 2783 0
Current children cumulated CPU time (s) 111.41
Current children cumulated vsize (KiB) 12004

[startup+118.013 s]
/proc/loadavg: 1.02 1.01 0.96 2/78 31180
/proc/meminfo: memFree=954400/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=34364 CPUtime=117.97
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 8469 0 0 0 11792 5 0 0 25 0 1 0 209705823 35188736 8452 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134548746 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 8591 8452 91 214 0 8373 0
Current children cumulated CPU time (s) 117.97
Current children cumulated vsize (KiB) 34364

[startup+121.289 s]
/proc/loadavg: 1.02 1.01 0.96 2/78 31180
/proc/meminfo: memFree=954400/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=34364 CPUtime=121.24
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 8469 0 0 0 12119 5 0 0 25 0 1 0 209705823 35188736 8452 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523603 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 8591 8452 91 214 0 8373 0
Current children cumulated CPU time (s) 121.24
Current children cumulated vsize (KiB) 34364

[startup+122.109 s]
/proc/loadavg: 1.02 1.01 0.96 2/78 31180
/proc/meminfo: memFree=954400/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=34364 CPUtime=122.06
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 8469 0 0 0 12201 5 0 0 25 0 1 0 209705823 35188736 8452 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523607 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 8591 8452 91 214 0 8373 0
Current children cumulated CPU time (s) 122.06
Current children cumulated vsize (KiB) 34364

[startup+122.929 s]
/proc/loadavg: 1.02 1.01 0.96 2/78 31180
/proc/meminfo: memFree=954400/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=34364 CPUtime=122.88
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 8469 0 0 0 12283 5 0 0 25 0 1 0 209705823 35188736 8452 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134548746 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 8591 8452 91 214 0 8373 0
Current children cumulated CPU time (s) 122.88
Current children cumulated vsize (KiB) 34364

[startup+123.337 s]
/proc/loadavg: 1.02 1.01 0.96 2/78 31180
/proc/meminfo: memFree=954400/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=34364 CPUtime=123.29
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4194304 8469 0 0 0 12324 5 0 0 25 0 1 0 209705823 35188736 8452 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523158 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 8591 8452 91 214 0 8373 0
Current children cumulated CPU time (s) 123.29
Current children cumulated vsize (KiB) 34364

[startup+123.439 s]
/proc/loadavg: 1.02 1.01 0.96 2/78 31180
/proc/meminfo: memFree=954400/2055920 swapFree=4192812/4192956
[pid=31179] ppid=31177 vsize=34364 CPUtime=123.39
/proc/31179/stat : 31179 (mmisat) R 31177 31179 30073 0 -1 4195840 8476 0 0 0 12327 12 0 0 25 0 1 0 209705823 35188736 8456 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/31179/statm: 8591 8456 95 214 0 8373 0
Current children cumulated CPU time (s) 123.39
Current children cumulated vsize (KiB) 34364

Child ended because it received signal 6 (SIGABRT)
Real time (s): 123.513
CPU time (s): 123.478
CPU user time (s): 123.278
CPU system time (s): 0.199969
CPU usage (%): 99.9722
Max. virtual memory (cumulated for all children) (KiB): 34364

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 123.278
system time used= 0.199969
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8487
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= 2545

runsolver used 0.158975 second user time and 0.275958 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Mon Feb 19 15:05:10 UTC 2007

IDJOB= 300287
IDBENCH= 20031
IDSOLVER= 108
FILE ID= node4/300287-1171897510

PBS_JOBID= 3848834

Free space on /tmp= 66551 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v800/unif-k5-r20-v800-c16000-S1059928571-06.cnf
COMMAND LINE= /tmp/evaluation/300287-1171897510/mmisat /tmp/evaluation/300287-1171897510/instance-300287-1171897510.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-300287-1171897510 -o ROOT/results/node4/solver-300287-1171897510 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/300287-1171897510/mmisat /tmp/evaluation/300287-1171897510/instance-300287-1171897510.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  04472b4b6b6792f6a66e445ec1cc3be0

RANDOM SEED= 468640055

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:        988736 kB
Buffers:         59480 kB
Cached:         870284 kB
SwapCached:          0 kB
Active:         354188 kB
Inactive:       635348 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        988736 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1480 kB
Writeback:           0 kB
Mapped:          78668 kB
Slab:            63188 kB
Committed_AS:   921020 kB
PageTables:       1768 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= 66519 MiB

End job on node4 on Mon Feb 19 15:07:13 UTC 2007