Trace number 308077

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 10.3844 10.4078

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1613098638-06-UNSAT.cnf
MD5SUM999d1a34639cbd28758ef0f4a062ee27
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark117.358
Satisfiable
(Un)Satisfiability was proved
Number of variables3497
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
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/node1/watcher-308077-1172515113 -o ROOT/results/node1/solver-308077-1172515113 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/308077-1172515113/mmisat /tmp/evaluation/308077-1172515113/instance-308077-1172515113.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 1.01 1.00 3/77 13581
/proc/meminfo: memFree=1793528/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=1572 CPUtime=0
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 252 0 0 0 0 0 0 0 18 0 1 0 271466401 1609728 235 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 393 236 81 214 0 175 0

[startup+0.106564 s]
/proc/loadavg: 1.00 1.01 1.00 3/77 13581
/proc/meminfo: memFree=1793528/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=4344 CPUtime=0.09
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 961 0 0 0 9 0 0 0 18 0 1 0 271466401 4448256 944 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 1086 944 81 214 0 868 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4344

[startup+0.514612 s]
/proc/loadavg: 1.00 1.01 1.00 3/77 13581
/proc/meminfo: memFree=1793528/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=8700 CPUtime=0.51
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 2033 0 0 0 50 1 0 0 21 0 1 0 271466401 8908800 2016 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 2175 2016 81 214 0 1957 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 8700

[startup+1.33471 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 13582
/proc/meminfo: memFree=1782704/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=12528 CPUtime=1.32
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 3009 0 0 0 131 1 0 0 25 0 1 0 271466401 12828672 2992 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 3132 2992 81 214 0 2914 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 12528

[startup+2.9709 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 13582
/proc/meminfo: memFree=1778416/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=17940 CPUtime=2.96
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 4333 0 0 0 294 2 0 0 25 0 1 0 271466401 18370560 4316 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 4485 4316 81 214 0 4267 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 17940

[startup+6.24728 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 13582
/proc/meminfo: memFree=1771120/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=24012 CPUtime=6.24
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 5852 0 0 0 621 3 0 0 25 0 1 0 271466401 24588288 5835 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 6003 5835 81 214 0 5785 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 24012

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

[startup+6.55432 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 13582
/proc/meminfo: memFree=1771120/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=24408 CPUtime=6.55
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 5953 0 0 0 652 3 0 0 25 0 1 0 271466401 24993792 5936 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 6102 5936 81 214 0 5884 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 24408

[startup+8.20151 s]
/proc/loadavg: 1.00 1.01 1.00 3/78 13582
/proc/meminfo: memFree=1768304/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=26028 CPUtime=8.19
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 6375 0 0 0 816 3 0 0 25 0 1 0 271466401 26652672 6358 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134518393 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 6507 6358 84 214 0 6289 0
Current children cumulated CPU time (s) 8.19
Current children cumulated vsize (KiB) 26028

[startup+9.01761 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 13582
/proc/meminfo: memFree=1768176/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=26028 CPUtime=9.01
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 6375 0 0 0 898 3 0 0 25 0 1 0 271466401 26652672 6358 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134520272 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 6507 6358 84 214 0 6289 0
Current children cumulated CPU time (s) 9.01
Current children cumulated vsize (KiB) 26028

[startup+9.8377 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 13582
/proc/meminfo: memFree=1768176/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=47344 CPUtime=9.82
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4194304 17466 0 0 0 975 7 0 0 25 0 1 0 271466401 48480256 11703 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134523222 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 11836 11703 86 214 0 11618 0
Current children cumulated CPU time (s) 9.82
Current children cumulated vsize (KiB) 47344

[startup+10.2498 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 13582
/proc/meminfo: memFree=1746480/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=47344 CPUtime=10.24
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4195840 17469 0 0 0 1012 12 0 0 25 0 1 0 271466401 48480256 11703 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 11836 11703 86 214 0 11618 0
Current children cumulated CPU time (s) 10.24
Current children cumulated vsize (KiB) 47344

[startup+10.3518 s]
/proc/loadavg: 1.00 1.01 1.00 2/78 13582
/proc/meminfo: memFree=1746480/2055920 swapFree=4156676/4192956
[pid=13581] ppid=13579 vsize=47344 CPUtime=10.32
/proc/13581/stat : 13581 (mmisat) R 13579 13581 13524 0 -1 4195840 17469 0 0 0 1012 20 0 0 24 0 1 0 271466401 48480256 11703 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/13581/statm: 11836 11703 86 214 0 11618 0
Current children cumulated CPU time (s) 10.32
Current children cumulated vsize (KiB) 47344

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 10.4078
CPU time (s): 10.3844
CPU user time (s): 10.1215
CPU system time (s): 0.26296
CPU usage (%): 99.7749
Max. virtual memory (cumulated for all children) (KiB): 70388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.1215
system time used= 0.26296
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17469
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= 14

runsolver used 0.011998 second user time and 0.030995 second system time

The end



Launcher Data (download as text)




Begin job on node1 on Mon Feb 26 18:38:33 UTC 2007

IDJOB= 308077
IDBENCH= 20222
IDSOLVER= 108
FILE ID= node1/308077-1172515113

PBS_JOBID= 3971619

Free space on /tmp= 66558 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1613098638-06-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/308077-1172515113/mmisat /tmp/evaluation/308077-1172515113/instance-308077-1172515113.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-308077-1172515113 -o ROOT/results/node1/solver-308077-1172515113 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/308077-1172515113/mmisat /tmp/evaluation/308077-1172515113/instance-308077-1172515113.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  999d1a34639cbd28758ef0f4a062ee27

RANDOM SEED= 935125010

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node1.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		: 3000.230
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		: 3000.230
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:       1793936 kB
Buffers:         38984 kB
Cached:         152424 kB
SwapCached:      19188 kB
Active:         171872 kB
Inactive:        47680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1793936 kB
SwapTotal:     4192956 kB
SwapFree:      4156676 kB
Dirty:            1448 kB
Writeback:           0 kB
Mapped:          29560 kB
Slab:            27992 kB
Committed_AS:   806844 kB
PageTables:       1740 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= 66512 MiB

End job on node1 on Mon Feb 26 18:38:44 UTC 2007