Trace number 456107

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
picosat 535UNSAT 299.635 299.753

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG8-gensys-ukn005.sat05-3584.reshuffled-07.cnf
MD5SUMdb9d2b7fba78f1cbe73aba9a1aa51042
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark77.2223
Satisfiable
(Un)Satisfiability was proved
Number of variables1133
Number of clauses56210
Sum of the clauses size352304
Maximum clause length22
Minimum clause length1
Number of clauses of size 136
Number of clauses of size 22544
Number of clauses of size 310764
Number of clauses of size 427
Number of clauses of size 545
Number of clauses of size over 542794

Solver Data (download as text)

299.57/299.75	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node40/watcher-456107-1178324477 -o ROOT/results/node40/solver-456107-1178324477 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/456107-1178324477/picosat /tmp/evaluation/456107-1178324477/instance-456107-1178324477.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.02 1.25 1.10 3/77 12265
/proc/meminfo: memFree=1577200/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=724 CPUtime=0
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 94 0 0 0 0 0 0 0 18 0 1 0 161327255 741376 80 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 181 80 40 102 0 76 0

[startup+0.0106889 s]
/proc/loadavg: 1.02 1.25 1.10 3/77 12265
/proc/meminfo: memFree=1577200/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=724 CPUtime=0
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 94 0 0 0 0 0 0 0 18 0 1 0 161327255 741376 80 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 181 80 40 102 0 76 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 724

[startup+0.101708 s]
/proc/loadavg: 1.02 1.25 1.10 3/77 12265
/proc/meminfo: memFree=1577200/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=988 CPUtime=0.09
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 161 0 0 0 4 5 0 0 18 0 1 0 161327255 1011712 147 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 247 147 40 102 0 142 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 988

[startup+0.301749 s]
/proc/loadavg: 1.02 1.25 1.10 3/77 12265
/proc/meminfo: memFree=1577200/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=1560 CPUtime=0.29
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 307 0 0 0 13 16 0 0 19 0 1 0 161327255 1597440 293 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 390 293 40 102 0 285 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1560

[startup+0.701832 s]
/proc/loadavg: 1.02 1.25 1.10 3/77 12265
/proc/meminfo: memFree=1577200/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=2744 CPUtime=0.69
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 600 0 0 0 31 38 0 0 22 0 1 0 161327255 2809856 586 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 686 586 40 102 0 581 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2744

[startup+1.502 s]
/proc/loadavg: 1.02 1.25 1.10 2/78 12266
/proc/meminfo: memFree=1574312/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=3800 CPUtime=1.49
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 868 0 0 0 99 50 0 0 25 0 1 0 161327255 3891200 854 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 950 854 42 102 0 845 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3800

[startup+3.10233 s]
/proc/loadavg: 1.02 1.24 1.10 2/78 12266
/proc/meminfo: memFree=1573480/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=4592 CPUtime=3.09
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 1074 0 0 0 258 51 0 0 25 0 1 0 161327255 4702208 1060 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 1148 1060 42 102 0 1043 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4592

[startup+6.302 s]
/proc/loadavg: 1.02 1.24 1.10 2/78 12266
/proc/meminfo: memFree=1572072/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=5660 CPUtime=6.29
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 1286 0 0 0 578 51 0 0 25 0 1 0 161327255 5795840 1270 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 1415 1270 48 102 0 1310 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5660

[startup+12.7013 s]
/proc/loadavg: 1.02 1.23 1.10 2/78 12266
/proc/meminfo: memFree=1571568/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=6000 CPUtime=12.68
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 1393 0 0 0 1217 51 0 0 25 0 1 0 161327255 6144000 1377 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 1500 1377 48 102 0 1395 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 6000

[startup+25.502 s]
/proc/loadavg: 1.01 1.23 1.10 2/78 12266
/proc/meminfo: memFree=1571120/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=6528 CPUtime=25.48
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 1500 0 0 0 2497 51 0 0 25 0 1 0 161327255 6684672 1484 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 1632 1484 48 102 0 1527 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 6528

[startup+51.1013 s]
/proc/loadavg: 1.01 1.21 1.09 2/78 12266
/proc/meminfo: memFree=1570352/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=7188 CPUtime=51.07
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 1684 0 0 0 5055 52 0 0 25 0 1 0 161327255 7360512 1668 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 1797 1668 48 102 0 1692 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 7188

[startup+102.306 s]
/proc/loadavg: 1.00 1.17 1.09 2/78 12266
/proc/meminfo: memFree=1569456/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=8124 CPUtime=102.25
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 1922 0 0 0 10173 52 0 0 25 0 1 0 161327255 8318976 1906 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2031 1906 48 102 0 1926 0
Current children cumulated CPU time (s) 102.25
Current children cumulated vsize (KiB) 8124

[startup+162.302 s]
/proc/loadavg: 1.00 1.14 1.08 2/78 12266
/proc/meminfo: memFree=1568624/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=8928 CPUtime=162.23
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2137 0 0 0 16170 53 0 0 25 0 1 0 161327255 9142272 2121 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2232 2121 48 102 0 2127 0
Current children cumulated CPU time (s) 162.23
Current children cumulated vsize (KiB) 8928

[startup+222.301 s]
/proc/loadavg: 1.00 1.11 1.07 2/78 12266
/proc/meminfo: memFree=1568304/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=9312 CPUtime=222.2
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2239 0 0 0 22167 53 0 0 25 0 1 0 161327255 9535488 2189 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2328 2189 48 102 0 2223 0
Current children cumulated CPU time (s) 222.2
Current children cumulated vsize (KiB) 9312

[startup+282.303 s]
/proc/loadavg: 1.00 1.09 1.07 2/78 12266
/proc/meminfo: memFree=1567600/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=9972 CPUtime=282.18
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2527 0 0 0 28164 54 0 0 25 0 1 0 161327255 10211328 2333 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 282.18
Current children cumulated vsize (KiB) 9972

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

[startup+287.902 s]
/proc/loadavg: 1.00 1.08 1.07 2/78 12266
/proc/meminfo: memFree=1567600/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=9972 CPUtime=287.78
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2527 0 0 0 28724 54 0 0 25 0 1 0 161327255 10211328 2333 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 287.78
Current children cumulated vsize (KiB) 9972

[startup+294.301 s]
/proc/loadavg: 1.00 1.08 1.07 2/78 12266
/proc/meminfo: memFree=1567600/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=9972 CPUtime=294.18
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2527 0 0 0 29364 54 0 0 25 0 1 0 161327255 10211328 2333 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134520125 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 294.18
Current children cumulated vsize (KiB) 9972

[startup+297.503 s]
/proc/loadavg: 1.00 1.08 1.07 2/78 12266
/proc/meminfo: memFree=1567600/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=9972 CPUtime=297.38
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2527 0 0 0 29684 54 0 0 25 0 1 0 161327255 10211328 2333 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 297.38
Current children cumulated vsize (KiB) 9972

[startup+299.101 s]
/proc/loadavg: 1.00 1.08 1.07 2/78 12266
/proc/meminfo: memFree=1567600/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=9972 CPUtime=298.98
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2527 0 0 0 29844 54 0 0 25 0 1 0 161327255 10211328 2333 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 298.98
Current children cumulated vsize (KiB) 9972

[startup+299.501 s]
/proc/loadavg: 1.00 1.08 1.07 2/78 12266
/proc/meminfo: memFree=1567600/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=9972 CPUtime=299.37
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2527 0 0 0 29883 54 0 0 25 0 1 0 161327255 10211328 2333 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 299.37
Current children cumulated vsize (KiB) 9972

[startup+299.701 s]
/proc/loadavg: 1.00 1.08 1.07 2/78 12266
/proc/meminfo: memFree=1567600/2055920 swapFree=4157524/4192956
[pid=12265] ppid=12263 vsize=9972 CPUtime=299.57
/proc/12265/stat : 12265 (picosat) R 12263 12265 11650 0 -1 4194304 2527 0 0 0 29903 54 0 0 25 0 1 0 161327255 10211328 2333 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/12265/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 299.57
Current children cumulated vsize (KiB) 9972

Child status: 20
Real time (s): 299.753
CPU time (s): 299.635
CPU user time (s): 299.09
CPU system time (s): 0.545917
CPU usage (%): 99.9606
Max. virtual memory (cumulated for all children) (KiB): 9972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 299.09
system time used= 0.545917
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2529
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= 668

runsolver used 0.227965 second user time and 0.648901 second system time

The end

Launcher Data (download as text)

Begin job on node40 on Sat May  5 00:21:17 UTC 2007

IDJOB= 456107
IDBENCH= 24601
IDSOLVER= 171
FILE ID= node40/456107-1178324477

PBS_JOBID= 5188742

Free space on /tmp= 66562 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/others/QG8-gensys-ukn005.sat05-3584.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/456107-1178324477/picosat /tmp/evaluation/456107-1178324477/instance-456107-1178324477.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-456107-1178324477 -o ROOT/results/node40/solver-456107-1178324477 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/456107-1178324477/picosat /tmp/evaluation/456107-1178324477/instance-456107-1178324477.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  db9d2b7fba78f1cbe73aba9a1aa51042

RANDOM SEED= 396436352

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node40.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		: 3000.283
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		: 3000.283
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:       1577608 kB
Buffers:         48240 kB
Cached:         314368 kB
SwapCached:      15336 kB
Active:         131456 kB
Inactive:       254728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1577608 kB
SwapTotal:     4192956 kB
SwapFree:      4157524 kB
Dirty:            2244 kB
Writeback:           0 kB
Mapped:          30404 kB
Slab:            77452 kB
Committed_AS:  4647000 kB
PageTables:       1932 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= 66562 MiB

End job on node40 on Sat May  5 00:26:17 UTC 2007