Trace number 302091

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 305.212 305.3

General information on the benchmark

Namerandom/LargeSize/5SAT/v1100/
unif-k5-r20-v1100-c22000-S1243695187-06.cnf
MD5SUM018b5778952b6ade82e68c4640d24c94
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark304.551
Satisfiable
(Un)Satisfiability was proved
Number of variables1100
Number of clauses22000
Sum of the clauses size110000
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 522000
Number of clauses of size over 50

Solver Data (download as text)



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/node67/watcher-302091-1172004353 -o ROOT/results/node67/solver-302091-1172004353 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/302091-1172004353/mmisat /tmp/evaluation/302091-1172004353/instance-302091-1172004353.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 0.93 3/64 8634
/proc/meminfo: memFree=1694128/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=1176 CPUtime=0
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 173 0 0 0 0 0 0 0 18 0 1 0 220392948 1204224 156 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 294 156 81 214 0 76 0

[startup+0.106609 s]
/proc/loadavg: 0.92 0.98 0.93 3/64 8634
/proc/meminfo: memFree=1694128/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=2100 CPUtime=0.1
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 376 0 0 0 10 0 0 0 18 0 1 0 220392948 2150400 359 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 525 359 81 214 0 307 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2100

[startup+0.51465 s]
/proc/loadavg: 0.92 0.98 0.93 3/64 8634
/proc/meminfo: memFree=1694128/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=3288 CPUtime=0.51
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 698 0 0 0 51 0 0 0 22 0 1 0 220392948 3366912 681 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 822 681 81 214 0 604 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3288

[startup+1.33474 s]
/proc/loadavg: 0.92 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1690600/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=4740 CPUtime=1.32
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 1062 0 0 0 132 0 0 0 25 0 1 0 220392948 4853760 1045 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 1185 1045 81 214 0 967 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 4740

[startup+2.97091 s]
/proc/loadavg: 0.92 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1688936/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=6588 CPUtime=2.96
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 1496 0 0 0 296 0 0 0 25 0 1 0 220392948 6746112 1479 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 1647 1479 81 214 0 1429 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 6588

[startup+6.25025 s]
/proc/loadavg: 0.93 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1687272/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=7776 CPUtime=6.24
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 1797 0 0 0 624 0 0 0 25 0 1 0 220392948 7962624 1780 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 1944 1780 81 214 0 1726 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 7776

[startup+12.7009 s]
/proc/loadavg: 0.93 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1685872/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=8964 CPUtime=12.69
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 2111 0 0 0 1268 1 0 0 25 0 1 0 220392948 9179136 2094 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 2241 2094 81 214 0 2023 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8964

[startup+25.5063 s]
/proc/loadavg: 0.95 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1684400/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=10548 CPUtime=25.49
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 2493 0 0 0 2548 1 0 0 25 0 1 0 220392948 10801152 2476 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 2637 2476 81 214 0 2419 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 10548

[startup+51.1119 s]
/proc/loadavg: 0.96 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1682352/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=12528 CPUtime=51.09
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 2998 0 0 0 5108 1 0 0 25 0 1 0 220392948 12828672 2981 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 3132 2981 81 214 0 2914 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 12528

[startup+102.32 s]
/proc/loadavg: 0.98 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1679664/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=15168 CPUtime=102.27
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 3656 0 0 0 10226 1 0 0 25 0 1 0 220392948 15532032 3639 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 3792 3639 81 214 0 3574 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 15168

[startup+162.342 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1677296/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=17412 CPUtime=162.29
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 4229 0 0 0 16227 2 0 0 25 0 1 0 220392948 17829888 4212 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 4353 4212 81 214 0 4135 0
Current children cumulated CPU time (s) 162.29
Current children cumulated vsize (KiB) 17412

[startup+222.358 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1675440/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=19260 CPUtime=222.29
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 4693 0 0 0 22226 3 0 0 25 0 1 0 220392948 19722240 4676 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 4815 4676 81 214 0 4597 0
Current children cumulated CPU time (s) 222.29
Current children cumulated vsize (KiB) 19260

[startup+282.374 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1673776/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=20976 CPUtime=282.28
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 5091 0 0 0 28225 3 0 0 25 0 1 0 220392948 21479424 5074 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 5244 5074 81 214 0 5026 0
Current children cumulated CPU time (s) 282.28
Current children cumulated vsize (KiB) 20976

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

[startup+288.417 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1673648/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=21108 CPUtime=288.33
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 5128 0 0 0 28830 3 0 0 25 0 1 0 220392948 21614592 5111 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 5277 5111 81 214 0 5059 0
Current children cumulated CPU time (s) 288.33
Current children cumulated vsize (KiB) 21108

[startup+294.969 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1673456/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=21240 CPUtime=294.88
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 5168 0 0 0 29485 3 0 0 25 0 1 0 220392948 21749760 5151 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 5310 5151 81 214 0 5092 0
Current children cumulated CPU time (s) 294.88
Current children cumulated vsize (KiB) 21240

[startup+301.526 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1673328/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=21372 CPUtime=301.43
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 5208 0 0 0 30140 3 0 0 25 0 1 0 220392948 21884928 5191 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 5343 5191 81 214 0 5125 0
Current children cumulated CPU time (s) 301.43
Current children cumulated vsize (KiB) 21372

[startup+303.166 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1673264/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=21372 CPUtime=303.07
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 5217 0 0 0 30304 3 0 0 25 0 1 0 220392948 21884928 5200 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 5343 5200 81 214 0 5125 0
Current children cumulated CPU time (s) 303.07
Current children cumulated vsize (KiB) 21372

[startup+303.982 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1673264/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=21372 CPUtime=303.88
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 5222 0 0 0 30385 3 0 0 25 0 1 0 220392948 21884928 5205 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 5343 5205 81 214 0 5125 0
Current children cumulated CPU time (s) 303.88
Current children cumulated vsize (KiB) 21372

[startup+304.806 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1673200/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=41992 CPUtime=304.71
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4194304 15449 0 0 0 30463 8 0 0 25 0 1 0 220392948 42999808 10362 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 10498 10362 85 214 0 10280 0
Current children cumulated CPU time (s) 304.71
Current children cumulated vsize (KiB) 41992

[startup+305.214 s]
/proc/loadavg: 0.99 0.98 0.93 2/65 8635
/proc/meminfo: memFree=1673200/2055920 swapFree=4175972/4192956
[pid=8634] ppid=8632 vsize=41992 CPUtime=305.12
/proc/8634/stat : 8634 (mmisat) R 8632 8634 8231 0 -1 4195840 15453 0 0 0 30496 16 0 0 25 0 1 0 220392948 42999808 10363 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/8634/statm: 10498 10363 86 214 0 10280 0
Current children cumulated CPU time (s) 305.12
Current children cumulated vsize (KiB) 41992

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 305.3
CPU time (s): 305.212
CPU user time (s): 304.964
CPU system time (s): 0.247962
CPU usage (%): 99.9709
Max. virtual memory (cumulated for all children) (KiB): 62336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 304.964
system time used= 0.247962
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15455
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= 6
involuntary context switches= 641

runsolver used 0.19297 second user time and 0.633903 second system time

The end



Launcher Data (download as text)




Begin job on node67 on Tue Feb 20 20:45:53 UTC 2007

IDJOB= 302091
IDBENCH= 20075
IDSOLVER= 108
FILE ID= node67/302091-1172004353

PBS_JOBID= 3892632

Free space on /tmp= 66562 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v1100/unif-k5-r20-v1100-c22000-S1243695187-06.cnf
COMMAND LINE= /tmp/evaluation/302091-1172004353/mmisat /tmp/evaluation/302091-1172004353/instance-302091-1172004353.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-302091-1172004353 -o ROOT/results/node67/solver-302091-1172004353 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/302091-1172004353/mmisat /tmp/evaluation/302091-1172004353/instance-302091-1172004353.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  018b5778952b6ade82e68c4640d24c94

RANDOM SEED= 305343312

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.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		: 3000.236
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		: 3000.236
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:       1694600 kB
Buffers:         28460 kB
Cached:         271580 kB
SwapCached:      11332 kB
Active:         216252 kB
Inactive:       102312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1694600 kB
SwapTotal:     4192956 kB
SwapFree:      4175972 kB
Dirty:            1624 kB
Writeback:           0 kB
Mapped:          15844 kB
Slab:            28724 kB
Committed_AS:   693064 kB
PageTables:       1452 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= 66522 MiB

End job on node67 on Tue Feb 20 20:50:59 UTC 2007