Trace number 312240

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
MiraXT v1UNSAT 4.28535 4.2903

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
MD5SUMa72030f9b5b8bc8b27629e6299239dd6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.27281
Satisfiable
(Un)Satisfiability was proved
Number of variables1665
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting MiraXTv1...
4.19/4.28	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node7/watcher-312240-1178876212 -o ROOT/results/node7/solver-312240-1178876212 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/312240-1178876212/MiraXTv1_dyn /tmp/evaluation/312240-1178876212/instance-312240-1178876212.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 1.85 1.94 1.81 3/77 21434
/proc/meminfo: memFree=1819000/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=3920 CPUtime=0
/proc/21434/stat : 21434 (MiraXTv1_dyn) R 21432 21434 20398 0 -1 4194304 324 0 0 0 0 0 0 0 18 0 1 0 363658834 4014080 299 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134571806 0 0 4096 0 0 0 0 17 1 0 0
/proc/21434/statm: 980 303 205 20 0 338 0

[startup+0.083653 s]
/proc/loadavg: 1.85 1.94 1.81 3/77 21434
/proc/meminfo: memFree=1819000/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=5676 CPUtime=0.07
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 630 0 0 0 7 0 0 0 18 0 2 0 363658834 5812224 605 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 1419 605 218 20 0 777 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5676

[startup+0.102655 s]
/proc/loadavg: 1.85 1.94 1.81 3/77 21434
/proc/meminfo: memFree=1819000/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=5676 CPUtime=0.09
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 631 0 0 0 9 0 0 0 18 0 2 0 363658834 5812224 606 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 1419 606 218 20 0 777 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5676

[startup+0.301676 s]
/proc/loadavg: 1.85 1.94 1.81 3/77 21434
/proc/meminfo: memFree=1819000/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=6072 CPUtime=0.29
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 754 0 0 0 29 0 0 0 18 0 2 0 363658834 6217728 729 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 1518 729 218 20 0 876 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6072

[startup+0.702717 s]
/proc/loadavg: 1.85 1.94 1.81 3/77 21434
/proc/meminfo: memFree=1819000/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=7568 CPUtime=0.69
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 978 0 0 0 69 0 0 0 18 0 2 0 363658834 7749632 953 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 1892 953 218 20 0 1250 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7568

[startup+1.5018 s]
/proc/loadavg: 1.85 1.94 1.81 2/79 21436
/proc/meminfo: memFree=1815336/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=8860 CPUtime=1.49
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 1334 0 0 0 149 0 0 0 18 0 2 0 363658834 9072640 1309 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 2215 1309 218 20 0 1573 0
[pid=21434/tid=21436] ppid=21432 vsize=8860 CPUtime=1.47
/proc/21434/task/21436/stat : 21436 (MiraXTv1_dyn) R 21432 21434 20398 0 -1 4194368 870 0 0 0 147 0 0 0 25 0 2 0 363658836 9072640 1310 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 10851963 0 0 4096 0 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8860

[startup+3.10197 s]
/proc/loadavg: 1.85 1.94 1.81 2/79 21436
/proc/meminfo: memFree=1813224/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=10080 CPUtime=3.09
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 1671 0 0 0 308 1 0 0 18 0 2 0 363658834 10321920 1646 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 2520 1646 218 20 0 1878 0
[pid=21434/tid=21436] ppid=21432 vsize=10080 CPUtime=3.06
/proc/21434/task/21436/stat : 21436 (MiraXTv1_dyn) R 21432 21434 20398 0 -1 4194368 1206 0 0 0 306 0 0 0 25 0 2 0 363658836 10321920 1646 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134526508 0 0 4096 0 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10080

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

[startup+3.90105 s]
/proc/loadavg: 1.86 1.94 1.81 2/79 21436
/proc/meminfo: memFree=1812776/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=10996 CPUtime=3.89
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 1930 0 0 0 388 1 0 0 18 0 2 0 363658834 11259904 1905 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 2749 1905 218 20 0 2107 0
[pid=21434/tid=21436] ppid=21432 vsize=10996 CPUtime=3.87
/proc/21434/task/21436/stat : 21436 (MiraXTv1_dyn) R 21432 21434 20398 0 -1 4194368 1465 0 0 0 386 1 0 0 25 0 2 0 363658836 11259904 1905 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134526351 0 0 4096 0 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 10996

[startup+4.10108 s]
/proc/loadavg: 1.86 1.94 1.81 2/79 21436
/proc/meminfo: memFree=1812776/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=11260 CPUtime=4.09
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 1980 0 0 0 408 1 0 0 18 0 2 0 363658834 11530240 1955 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 2815 1955 218 20 0 2173 0
[pid=21434/tid=21436] ppid=21432 vsize=11260 CPUtime=4.07
/proc/21434/task/21436/stat : 21436 (MiraXTv1_dyn) R 21432 21434 20398 0 -1 4194368 1515 0 0 0 406 1 0 0 25 0 2 0 363658836 11530240 1955 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134526297 0 0 4096 0 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 11260

[startup+4.20108 s]
/proc/loadavg: 1.86 1.94 1.81 2/79 21436
/proc/meminfo: memFree=1812776/2055920 swapFree=4156568/4192956
[pid=21434] ppid=21432 vsize=11392 CPUtime=4.19
/proc/21434/stat : 21434 (MiraXTv1_dyn) S 21432 21434 20398 0 -1 4194304 2005 0 0 0 418 1 0 0 18 0 2 0 363658834 11665408 1980 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21434/statm: 2848 1980 218 20 0 2206 0
[pid=21434/tid=21436] ppid=21432 vsize=11392 CPUtime=4.17
/proc/21434/task/21436/stat : 21436 (MiraXTv1_dyn) R 21432 21434 20398 0 -1 4194368 1540 0 0 0 416 1 0 0 25 0 2 0 363658836 11665408 1980 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134526370 0 0 4096 0 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 4.19
Current children cumulated vsize (KiB) 11392

Child status: 20
Real time (s): 4.2903
CPU time (s): 4.28535
CPU user time (s): 4.27135
CPU system time (s): 0.013997
CPU usage (%): 99.8845
Max. virtual memory (cumulated for all children) (KiB): 11392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.27135
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2032
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= 13
involuntary context switches= 7

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Fri May 11 09:36:52 UTC 2007

IDJOB= 312240
IDBENCH= 20335
IDSOLVER= 130
FILE ID= node7/312240-1178876212

PBS_JOBID= 5251044

Free space on /tmp= 66549 MiB

SOLVER NAME= MiraXT v1
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/312240-1178876212/MiraXTv1_dyn /tmp/evaluation/312240-1178876212/instance-312240-1178876212.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-312240-1178876212 -o ROOT/results/node7/solver-312240-1178876212 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/312240-1178876212/MiraXTv1_dyn /tmp/evaluation/312240-1178876212/instance-312240-1178876212.cnf            

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  a72030f9b5b8bc8b27629e6299239dd6

RANDOM SEED= 687154529

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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:       1819216 kB
Buffers:         41256 kB
Cached:         130040 kB
SwapCached:      16996 kB
Active:         127400 kB
Inactive:        68012 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1819216 kB
SwapTotal:     4192956 kB
SwapFree:      4156568 kB
Dirty:            4196 kB
Writeback:           0 kB
Mapped:          30012 kB
Slab:            26748 kB
Committed_AS: 14779072 kB
PageTables:       1860 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= 66549 MiB

End job on node7 on Fri May 11 09:36:57 UTC 2007