Trace number 1555642

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SAT07 reference solver: picosat 535UNSAT 43.9113 43.9301

General information on the benchmark

NameAPPLICATIONS/
bitverif/maxand/maxand064.cnf
MD5SUMb2d2617ddc348aef0d35df3c8f228dcb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.81857
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

43.88/43.92	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1555642-1238742213/watcher-1555642-1238742213 -o /tmp/evaluation-result-1555642-1238742213/solver-1555642-1238742213 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1555642-1238742213.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): 1800 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: 1.94 1.85 1.68 3/64 1592
/proc/meminfo: memFree=1857720/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=568 CPUtime=0
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 80 0 0 0 0 0 0 0 18 0 1 0 1146883143 581632 66 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 142 66 40 102 0 37 0

[startup+0.0707781 s]
/proc/loadavg: 1.94 1.85 1.68 3/64 1592
/proc/meminfo: memFree=1857720/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=980 CPUtime=0.05
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 176 0 0 0 2 3 0 0 18 0 1 0 1146883143 1003520 162 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 245 162 40 102 0 140 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 980

[startup+0.101779 s]
/proc/loadavg: 1.94 1.85 1.68 3/64 1592
/proc/meminfo: memFree=1857720/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=1344 CPUtime=0.09
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 241 0 0 0 3 6 0 0 18 0 1 0 1146883143 1376256 227 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 336 227 40 102 0 231 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1344

[startup+0.301798 s]
/proc/loadavg: 1.94 1.85 1.68 3/64 1592
/proc/meminfo: memFree=1857720/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=2480 CPUtime=0.29
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 519 0 0 0 11 18 0 0 19 0 1 0 1146883143 2539520 505 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 620 505 40 102 0 515 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2480

[startup+0.701836 s]
/proc/loadavg: 1.94 1.85 1.68 3/64 1592
/proc/meminfo: memFree=1857720/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=2904 CPUtime=0.69
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 626 0 0 0 50 19 0 0 22 0 1 0 1146883143 2973696 604 1992294400 134512640 134931368 4294956224 18446744073709551615 134544845 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 726 604 42 102 0 621 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2904

[startup+1.50191 s]
/proc/loadavg: 1.94 1.85 1.68 2/65 1593
/proc/meminfo: memFree=1855152/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=3440 CPUtime=1.49
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 766 0 0 0 130 19 0 0 25 0 1 0 1146883143 3522560 742 1992294400 134512640 134931368 4294956224 18446744073709551615 134582499 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 860 742 48 102 0 755 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3440

[startup+3.10106 s]
/proc/loadavg: 1.86 1.84 1.68 2/65 1593
/proc/meminfo: memFree=1854576/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=3968 CPUtime=3.09
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 899 0 0 0 290 19 0 0 25 0 1 0 1146883143 4063232 875 1992294400 134512640 134931368 4294956224 18446744073709551615 134583827 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 992 875 48 102 0 887 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3968

[startup+6.30137 s]
/proc/loadavg: 1.86 1.84 1.68 2/65 1593
/proc/meminfo: memFree=1853616/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=4880 CPUtime=6.29
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1110 0 0 0 610 19 0 0 25 0 1 0 1146883143 4997120 1086 1992294400 134512640 134931368 4294956224 18446744073709551615 134530220 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 1220 1086 48 102 0 1115 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4880

[startup+12.702 s]
/proc/loadavg: 1.73 1.81 1.67 2/65 1593
/proc/meminfo: memFree=1852912/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=5524 CPUtime=12.68
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1290 0 0 0 1249 19 0 0 25 0 1 0 1146883143 5656576 1266 1992294400 134512640 134931368 4294956224 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 1381 1266 48 102 0 1276 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 5524

[startup+25.5012 s]
/proc/loadavg: 1.62 1.78 1.66 2/65 1593
/proc/meminfo: memFree=1849904/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=8224 CPUtime=25.48
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1969 0 0 0 2528 20 0 0 25 0 1 0 1146883143 8421376 1945 1992294400 134512640 134931368 4294956224 18446744073709551615 134529933 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 2056 1945 48 102 0 1951 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 8224

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

[startup+31.9058 s]
/proc/loadavg: 1.52 1.76 1.65 2/65 1593
/proc/meminfo: memFree=1849904/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=8224 CPUtime=31.88
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1971 0 0 0 3168 20 0 0 25 0 1 0 1146883143 8421376 1947 1992294400 134512640 134931368 4294956224 18446744073709551615 134530246 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 2056 1947 48 102 0 1951 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 8224

[startup+38.3014 s]
/proc/loadavg: 1.48 1.74 1.65 2/65 1593
/proc/meminfo: memFree=1849904/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=8224 CPUtime=38.28
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1971 0 0 0 3808 20 0 0 25 0 1 0 1146883143 8421376 1947 1992294400 134512640 134931368 4294956224 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 2056 1947 48 102 0 1951 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 8224

[startup+41.5017 s]
/proc/loadavg: 1.48 1.74 1.65 2/65 1593
/proc/meminfo: memFree=1849904/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=8224 CPUtime=41.48
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1972 0 0 0 4128 20 0 0 25 0 1 0 1146883143 8421376 1948 1992294400 134512640 134931368 4294956224 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 2056 1948 48 102 0 1951 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 8224

[startup+43.1018 s]
/proc/loadavg: 1.44 1.73 1.65 2/65 1593
/proc/meminfo: memFree=1849840/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=8224 CPUtime=43.08
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1972 0 0 0 4288 20 0 0 25 0 1 0 1146883143 8421376 1948 1992294400 134512640 134931368 4294956224 18446744073709551615 134531123 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 2056 1948 48 102 0 1951 0
Current children cumulated CPU time (s) 43.08
Current children cumulated vsize (KiB) 8224

[startup+43.5019 s]
/proc/loadavg: 1.44 1.73 1.65 2/65 1593
/proc/meminfo: memFree=1849840/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=8224 CPUtime=43.48
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1972 0 0 0 4328 20 0 0 25 0 1 0 1146883143 8421376 1948 1992294400 134512640 134931368 4294956224 18446744073709551615 134525862 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 2056 1948 48 102 0 1951 0
Current children cumulated CPU time (s) 43.48
Current children cumulated vsize (KiB) 8224

[startup+43.9019 s]
/proc/loadavg: 1.44 1.73 1.65 2/65 1593
/proc/meminfo: memFree=1849840/2055920 swapFree=4179168/4192956
[pid=1592] ppid=1590 vsize=8224 CPUtime=43.88
/proc/1592/stat : 1592 (picosat) R 1590 1592 1306 0 -1 4194304 1972 0 0 0 4368 20 0 0 25 0 1 0 1146883143 8421376 1948 1992294400 134512640 134931368 4294956224 18446744073709551615 134524238 0 0 4096 0 0 0 0 17 1 0 0
/proc/1592/statm: 2056 1948 48 102 0 1951 0
Current children cumulated CPU time (s) 43.88
Current children cumulated vsize (KiB) 8224

Child status: 20
Real time (s): 43.9301
CPU time (s): 43.9113
CPU user time (s): 43.7064
CPU system time (s): 0.204968
CPU usage (%): 99.9573
Max. virtual memory (cumulated for all children) (KiB): 8224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 43.7064
system time used= 0.204968
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1974
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= 2
involuntary context switches= 101

runsolver used 0.035994 second user time and 0.098984 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-03 09:03:33
IDJOB=1555642
IDBENCH=70803
IDSOLVER=563
FILE ID=node61/1555642-1238742213
PBS_JOBID= 9085404
Free space on /tmp= 66480 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT09/APPLICATIONS/bitverif/maxand/maxand064.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1555642-1238742213/watcher-1555642-1238742213 -o /tmp/evaluation-result-1555642-1238742213/solver-1555642-1238742213 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1555642-1238742213.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=477195086

node61.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.238
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		: 3000.238
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:       1858136 kB
Buffers:         14288 kB
Cached:         111616 kB
SwapCached:       8056 kB
Active:          21180 kB
Inactive:       114464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1858136 kB
SwapTotal:     4192956 kB
SwapFree:      4179168 kB
Dirty:            1108 kB
Writeback:           0 kB
Mapped:          15436 kB
Slab:            48184 kB
Committed_AS:  2907880 kB
PageTables:       1372 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66480 MiB
End job on node61 at 2009-04-03 09:04:17