Trace number 333318

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 302.588 302.76

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 benchmark76.9823
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)

302.52/302.75	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node4/watcher-333318-1173510028 -o ROOT/results/node4/solver-333318-1173510028 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/333318-1173510028/picosat /tmp/evaluation/333318-1173510028/instance-333318-1173510028.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: 0.92 0.98 0.98 3/77 19022
/proc/meminfo: memFree=1555176/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=724 CPUtime=0
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 95 0 0 0 0 0 0 0 18 0 1 0 370957668 741376 80 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 181 80 40 102 0 76 0

[startup+0.062276 s]
/proc/loadavg: 0.92 0.98 0.98 3/77 19022
/proc/meminfo: memFree=1555176/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=856 CPUtime=0.05
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 131 0 0 0 2 3 0 0 18 0 1 0 370957668 876544 116 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 214 116 40 102 0 109 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 856

[startup+0.10128 s]
/proc/loadavg: 0.92 0.98 0.98 3/77 19022
/proc/meminfo: memFree=1555176/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=988 CPUtime=0.1
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 160 0 0 0 4 6 0 0 18 0 1 0 370957668 1011712 145 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 247 145 40 102 0 142 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 988

[startup+0.301299 s]
/proc/loadavg: 0.92 0.98 0.98 3/77 19022
/proc/meminfo: memFree=1555176/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=1560 CPUtime=0.29
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 307 0 0 0 12 17 0 0 19 0 1 0 370957668 1597440 292 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 390 292 40 102 0 285 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1560

[startup+0.701338 s]
/proc/loadavg: 0.92 0.98 0.98 3/77 19022
/proc/meminfo: memFree=1555176/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=2744 CPUtime=0.69
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 592 0 0 0 32 37 0 0 23 0 1 0 370957668 2809856 577 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 686 577 40 102 0 581 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2744

[startup+1.50141 s]
/proc/loadavg: 0.92 0.98 0.98 2/78 19023
/proc/meminfo: memFree=1552224/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=3800 CPUtime=1.49
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 863 0 0 0 99 50 0 0 25 0 1 0 370957668 3891200 848 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 950 848 42 102 0 845 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3800

[startup+3.10257 s]
/proc/loadavg: 0.92 0.98 0.98 2/78 19023
/proc/meminfo: memFree=1551456/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=4592 CPUtime=3.09
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 1066 0 0 0 259 50 0 0 25 0 1 0 370957668 4702208 1051 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 1148 1051 42 102 0 1043 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4592

[startup+6.30187 s]
/proc/loadavg: 0.93 0.98 0.98 2/78 19023
/proc/meminfo: memFree=1549984/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=5660 CPUtime=6.29
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 1287 0 0 0 579 50 0 0 25 0 1 0 370957668 5795840 1270 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 1415 1270 48 102 0 1310 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5660

[startup+12.7015 s]
/proc/loadavg: 0.93 0.98 0.98 2/78 19023
/proc/meminfo: memFree=1549536/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=6000 CPUtime=12.69
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 1394 0 0 0 1218 51 0 0 25 0 1 0 370957668 6144000 1377 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134543561 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 1500 1377 48 102 0 1395 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6000

[startup+25.5017 s]
/proc/loadavg: 0.95 0.98 0.98 2/78 19023
/proc/meminfo: memFree=1549088/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=6528 CPUtime=25.48
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 1501 0 0 0 2497 51 0 0 25 0 1 0 370957668 6684672 1484 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 1632 1484 48 102 0 1527 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 6528

[startup+51.1012 s]
/proc/loadavg: 0.96 0.98 0.98 2/84 19105
/proc/meminfo: memFree=1547056/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=7188 CPUtime=51.04
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 1685 0 0 0 5051 53 0 0 25 0 1 0 370957668 7360512 1668 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 1797 1668 48 102 0 1692 0
Current children cumulated CPU time (s) 51.04
Current children cumulated vsize (KiB) 7188

[startup+102.305 s]
/proc/loadavg: 0.98 0.98 0.98 2/84 19191
/proc/meminfo: memFree=1545904/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=8124 CPUtime=102.18
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 1923 0 0 0 10165 53 0 0 25 0 1 0 370957668 8318976 1906 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2031 1906 48 102 0 1926 0
Current children cumulated CPU time (s) 102.18
Current children cumulated vsize (KiB) 8124

[startup+162.302 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1546272/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=8928 CPUtime=162.15
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2138 0 0 0 16161 54 0 0 25 0 1 0 370957668 9142272 2121 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2232 2121 48 102 0 2127 0
Current children cumulated CPU time (s) 162.15
Current children cumulated vsize (KiB) 8928

[startup+222.302 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1545888/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=9312 CPUtime=222.14
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2226 0 0 0 22159 55 0 0 25 0 1 0 370957668 9535488 2175 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2328 2175 48 102 0 2223 0
Current children cumulated CPU time (s) 222.14
Current children cumulated vsize (KiB) 9312

[startup+282.301 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1545248/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=9972 CPUtime=282.12
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2491 0 0 0 28157 55 0 0 25 0 1 0 370957668 10211328 2333 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 282.12
Current children cumulated vsize (KiB) 9972

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

[startup+294.302 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1545248/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=9972 CPUtime=294.12
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2528 0 0 0 29357 55 0 0 25 0 1 0 370957668 10211328 2333 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 294.12
Current children cumulated vsize (KiB) 9972

[startup+297.502 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1545248/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=9972 CPUtime=297.32
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2528 0 0 0 29677 55 0 0 25 0 1 0 370957668 10211328 2333 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 297.32
Current children cumulated vsize (KiB) 9972

[startup+300.702 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1545248/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=9972 CPUtime=300.52
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2528 0 0 0 29997 55 0 0 25 0 1 0 370957668 10211328 2333 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 300.52
Current children cumulated vsize (KiB) 9972

[startup+301.501 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1545248/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=9972 CPUtime=301.32
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2528 0 0 0 30077 55 0 0 25 0 1 0 370957668 10211328 2333 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 301.32
Current children cumulated vsize (KiB) 9972

[startup+302.301 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1545248/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=9972 CPUtime=302.12
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2528 0 0 0 30157 55 0 0 25 0 1 0 370957668 10211328 2333 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134597664 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 302.12
Current children cumulated vsize (KiB) 9972

[startup+302.702 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 19221
/proc/meminfo: memFree=1545248/2055920 swapFree=4153224/4192956
[pid=19022] ppid=19020 vsize=9972 CPUtime=302.52
/proc/19022/stat : 19022 (picosat) R 19020 19022 18582 0 -1 4194304 2528 0 0 0 30197 55 0 0 25 0 1 0 370957668 10211328 2333 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134520261 0 0 4096 0 0 0 0 17 1 0 0
/proc/19022/statm: 2493 2333 48 102 0 2388 0
Current children cumulated CPU time (s) 302.52
Current children cumulated vsize (KiB) 9972

Child status: 20
Real time (s): 302.76
CPU time (s): 302.588
CPU user time (s): 302.027
CPU system time (s): 0.560914
CPU usage (%): 99.9432
Max. virtual memory (cumulated for all children) (KiB): 9972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 302.027
system time used= 0.560914
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2530
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= 6385

runsolver used 0.356945 second user time and 0.748886 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Sat Mar 10 07:00:28 UTC 2007

IDJOB= 333318
IDBENCH= 24601
IDSOLVER= 106
FILE ID= node4/333318-1173510028

PBS_JOBID= 4101128

Free space on /tmp= 66541 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/333318-1173510028/picosat /tmp/evaluation/333318-1173510028/instance-333318-1173510028.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-333318-1173510028 -o ROOT/results/node4/solver-333318-1173510028 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/333318-1173510028/picosat /tmp/evaluation/333318-1173510028/instance-333318-1173510028.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  db9d2b7fba78f1cbe73aba9a1aa51042

RANDOM SEED= 840516252

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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:       1555648 kB
Buffers:         44984 kB
Cached:         378728 kB
SwapCached:       2920 kB
Active:         260448 kB
Inactive:       187248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1555648 kB
SwapTotal:     4192956 kB
SwapFree:      4153224 kB
Dirty:            2164 kB
Writeback:           0 kB
Mapped:          30416 kB
Slab:            38184 kB
Committed_AS:  1281304 kB
PageTables:       1768 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= 66541 MiB

End job on node4 on Sat Mar 10 07:05:31 UTC 2007