Trace number 310453

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 470.848 471.035

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
MD5SUMe4a16dbebaf749785d32ea7331a934fc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.09138
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

470.81/471.03	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node77/watcher-310453-1172559675 -o ROOT/results/node77/solver-310453-1172559675 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310453-1172559675/picosat /tmp/evaluation/310453-1172559675/instance-310453-1172559675.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: 1.04 1.02 1.00 3/73 7493
/proc/meminfo: memFree=1834440/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=568 CPUtime=0
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 80 0 0 0 0 0 0 0 20 0 1 0 50835015 581632 66 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 142 66 40 102 0 37 0

[startup+0.107493 s]
/proc/loadavg: 1.04 1.02 1.00 3/73 7493
/proc/meminfo: memFree=1834440/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=836 CPUtime=0.1
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 138 0 0 0 9 1 0 0 21 0 1 0 50835015 856064 122 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525847 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 209 122 48 102 0 104 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 836

[startup+0.515539 s]
/proc/loadavg: 1.04 1.02 1.00 3/73 7493
/proc/meminfo: memFree=1834440/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=836 CPUtime=0.51
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 149 0 0 0 50 1 0 0 25 0 1 0 50835015 856064 133 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529914 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 209 133 48 102 0 104 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 836

[startup+1.33764 s]
/proc/loadavg: 1.04 1.02 1.00 2/74 7494
/proc/meminfo: memFree=1833984/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=836 CPUtime=1.33
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 160 0 0 0 132 1 0 0 25 0 1 0 50835015 856064 144 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 209 144 48 102 0 104 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 836

[startup+2.97983 s]
/proc/loadavg: 1.04 1.02 1.00 2/74 7502
/proc/meminfo: memFree=1833792/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=972 CPUtime=2.97
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 182 0 0 0 296 1 0 0 25 0 1 0 50835015 995328 166 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134524112 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 243 166 48 102 0 138 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 972

[startup+6.25622 s]
/proc/loadavg: 1.04 1.02 1.00 2/74 7504
/proc/meminfo: memFree=1833600/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=1096 CPUtime=6.24
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 210 0 0 0 623 1 0 0 25 0 1 0 50835015 1122304 194 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525828 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 274 194 48 102 0 169 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1096

[startup+12.712 s]
/proc/loadavg: 1.03 1.02 1.00 2/74 7522
/proc/meminfo: memFree=1833408/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=1212 CPUtime=12.69
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 241 0 0 0 1268 1 0 0 25 0 1 0 50835015 1241088 225 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134597666 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 303 225 48 102 0 198 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1212

[startup+25.5145 s]
/proc/loadavg: 1.02 1.02 1.00 2/74 7530
/proc/meminfo: memFree=1833280/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=1452 CPUtime=25.48
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 287 0 0 0 2547 1 0 0 25 0 1 0 50835015 1486848 271 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525575 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 363 271 48 102 0 258 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1452

[startup+51.1286 s]
/proc/loadavg: 1.02 1.01 1.00 2/74 7576
/proc/meminfo: memFree=1832960/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=1664 CPUtime=51.06
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 358 0 0 0 5105 1 0 0 25 0 1 0 50835015 1703936 341 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134524232 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 416 341 48 102 0 311 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 1664

[startup+102.344 s]
/proc/loadavg: 1.00 1.01 1.00 2/68 7618
/proc/meminfo: memFree=1833784/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=1952 CPUtime=102.25
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 425 0 0 0 10224 1 0 0 25 0 1 0 50835015 1998848 408 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 488 408 48 102 0 383 0
Current children cumulated CPU time (s) 102.25
Current children cumulated vsize (KiB) 1952

[startup+162.356 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833528/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2216 CPUtime=162.24
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 499 0 0 0 16223 1 0 0 25 0 1 0 50835015 2269184 482 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529977 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 554 482 48 102 0 449 0
Current children cumulated CPU time (s) 162.24
Current children cumulated vsize (KiB) 2216

[startup+222.366 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833400/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2472 CPUtime=222.23
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 545 0 0 0 22222 1 0 0 25 0 1 0 50835015 2531328 528 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134524101 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 618 528 48 102 0 513 0
Current children cumulated CPU time (s) 222.23
Current children cumulated vsize (KiB) 2472

[startup+282.374 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833272/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2680 CPUtime=282.23
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 596 0 0 0 28222 1 0 0 25 0 1 0 50835015 2744320 570 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 670 570 48 102 0 565 0
Current children cumulated CPU time (s) 282.23
Current children cumulated vsize (KiB) 2680

[startup+342.382 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833080/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2776 CPUtime=342.22
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 631 0 0 0 34221 1 0 0 25 0 1 0 50835015 2842624 605 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 694 605 48 102 0 589 0
Current children cumulated CPU time (s) 342.22
Current children cumulated vsize (KiB) 2776

[startup+402.395 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833016/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2836 CPUtime=402.21
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 656 0 0 0 40220 1 0 0 25 0 1 0 50835015 2904064 629 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 709 629 48 102 0 604 0
Current children cumulated CPU time (s) 402.21
Current children cumulated vsize (KiB) 2836

[startup+462.402 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833016/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2884 CPUtime=462.21
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 667 0 0 0 46219 2 0 0 25 0 1 0 50835015 2953216 640 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525802 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 721 640 48 102 0 616 0
Current children cumulated CPU time (s) 462.21
Current children cumulated vsize (KiB) 2884

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

[startup+465.376 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833016/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2884 CPUtime=465.19
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 667 0 0 0 46517 2 0 0 25 0 1 0 50835015 2953216 640 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525778 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 721 640 48 102 0 616 0
Current children cumulated CPU time (s) 465.19
Current children cumulated vsize (KiB) 2884

[startup+468.647 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833016/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2884 CPUtime=468.46
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 667 0 0 0 46844 2 0 0 25 0 1 0 50835015 2953216 640 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 721 640 48 102 0 616 0
Current children cumulated CPU time (s) 468.46
Current children cumulated vsize (KiB) 2884

[startup+470.287 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833016/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2884 CPUtime=470.1
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 667 0 0 0 47008 2 0 0 25 0 1 0 50835015 2953216 640 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 721 640 48 102 0 616 0
Current children cumulated CPU time (s) 470.1
Current children cumulated vsize (KiB) 2884

[startup+470.695 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833016/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2884 CPUtime=470.5
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 667 0 0 0 47048 2 0 0 25 0 1 0 50835015 2953216 640 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 721 640 48 102 0 616 0
Current children cumulated CPU time (s) 470.5
Current children cumulated vsize (KiB) 2884

[startup+470.899 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833016/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2884 CPUtime=470.71
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 667 0 0 0 47069 2 0 0 25 0 1 0 50835015 2953216 640 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525818 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 721 640 48 102 0 616 0
Current children cumulated CPU time (s) 470.71
Current children cumulated vsize (KiB) 2884

[startup+471.005 s]
/proc/loadavg: 1.00 1.00 1.00 2/68 7618
/proc/meminfo: memFree=1833016/2055892 swapFree=4086192/4096564
[pid=7493] ppid=7491 vsize=2884 CPUtime=470.81
/proc/7493/stat : 7493 (picosat) R 7491 7493 7192 0 -1 4194304 667 0 0 0 47079 2 0 0 25 0 1 0 50835015 2953216 640 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525921 0 0 4096 0 0 0 0 17 1 0 0
/proc/7493/statm: 721 640 48 102 0 616 0
Current children cumulated CPU time (s) 470.81
Current children cumulated vsize (KiB) 2884

Child status: 20
Real time (s): 471.035
CPU time (s): 470.848
CPU user time (s): 470.827
CPU system time (s): 0.020996
CPU usage (%): 99.9604
Max. virtual memory (cumulated for all children) (KiB): 2932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 470.827
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 669
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= 8
involuntary context switches= 754

runsolver used 0.381941 second user time and 0.946856 second system time

The end

Launcher Data (download as text)

Begin job on node77 on Tue Feb 27 07:01:15 UTC 2007

IDJOB= 310453
IDBENCH= 20287
IDSOLVER= 106
FILE ID= node77/310453-1172559675

PBS_JOBID= 3971876

Free space on /tmp= 66649 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310453-1172559675/picosat /tmp/evaluation/310453-1172559675/instance-310453-1172559675.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node77/watcher-310453-1172559675 -o ROOT/results/node77/solver-310453-1172559675 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310453-1172559675/picosat /tmp/evaluation/310453-1172559675/instance-310453-1172559675.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  e4a16dbebaf749785d32ea7331a934fc

RANDOM SEED= 738189812

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node77.alineos.net 2.6.9-34.ELsmp #1 SMP Thu Mar 9 06:23:23 GMT 2006 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		: 3000.239
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	: 6006.15
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		: 3000.239
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1834912 kB
Buffers:         28128 kB
Cached:         146724 kB
SwapCached:       4056 kB
Active:          79392 kB
Inactive:       106516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1834912 kB
SwapTotal:     4096564 kB
SwapFree:      4086192 kB
Dirty:             596 kB
Writeback:           0 kB
Mapped:          16748 kB
Slab:            21160 kB
Committed_AS:   114948 kB
PageTables:       1672 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66649 MiB

End job on node77 on Tue Feb 27 07:09:06 UTC 2007