Trace number 339450

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 642.142 642.313

General information on the benchmark

Namecrafted/Difficult/contest05/jarvisalo/
mod2c-rand3bip-unsat-120-3.sat05-2340.reshuffled-07.cnf
MD5SUMb8ad54973e17f84e99bf9d2e7bc768ce
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark111.144
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of clauses640
Sum of the clauses size2560
Maximum clause length4
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 4640
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

642.13/642.31	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/node5/watcher-339450-1173705006 -o ROOT/results/node5/solver-339450-1173705006 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/339450-1173705006/picosat /tmp/evaluation/339450-1173705006/instance-339450-1173705006.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 0.99 3/77 7634
/proc/meminfo: memFree=1563040/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=568 CPUtime=0
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 69 0 0 0 0 0 0 0 18 0 1 0 390455431 581632 54 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 142 54 40 102 0 37 0

[startup+0.0203579 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 7634
/proc/meminfo: memFree=1563040/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=568 CPUtime=0.01
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 90 0 0 0 1 0 0 0 18 0 1 0 390455431 581632 75 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134524107 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 142 75 42 102 0 37 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 568

[startup+0.101368 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 7634
/proc/meminfo: memFree=1563040/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=712 CPUtime=0.09
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 112 0 0 0 9 0 0 0 18 0 1 0 390455431 729088 95 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 178 95 48 102 0 73 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 712

[startup+0.301389 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 7634
/proc/meminfo: memFree=1563040/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=712 CPUtime=0.29
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 122 0 0 0 29 0 0 0 20 0 1 0 390455431 729088 105 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525811 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 178 105 48 102 0 73 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 712

[startup+0.701434 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 7634
/proc/meminfo: memFree=1563040/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=840 CPUtime=0.69
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 145 0 0 0 69 0 0 0 24 0 1 0 390455431 860160 128 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134549328 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 210 128 48 102 0 105 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 840

[startup+1.50153 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 7635
/proc/meminfo: memFree=1562648/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=840 CPUtime=1.49
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 157 0 0 0 149 0 0 0 25 0 1 0 390455431 860160 140 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525849 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 210 140 48 102 0 105 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 840

[startup+3.10171 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 7635
/proc/meminfo: memFree=1562392/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=960 CPUtime=3.09
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 189 0 0 0 309 0 0 0 25 0 1 0 390455431 983040 172 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134597664 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 240 172 48 102 0 135 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 960

[startup+6.30207 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 7635
/proc/meminfo: memFree=1562200/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=1076 CPUtime=6.29
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 223 0 0 0 629 0 0 0 25 0 1 0 390455431 1101824 206 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134549315 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 269 206 48 102 0 164 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1076

[startup+12.7018 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 7635
/proc/meminfo: memFree=1561880/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=1288 CPUtime=12.69
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 276 0 0 0 1269 0 0 0 25 0 1 0 390455431 1318912 259 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134529961 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 322 259 48 102 0 217 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1288

[startup+25.5012 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 7635
/proc/meminfo: memFree=1561624/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=1540 CPUtime=25.48
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 332 0 0 0 2548 0 0 0 25 0 1 0 390455431 1576960 315 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134597664 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 385 315 48 102 0 280 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1540

[startup+51.1011 s]
/proc/loadavg: 0.96 0.98 0.99 2/78 7635
/proc/meminfo: memFree=1561368/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=1848 CPUtime=51.08
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 403 0 0 0 5107 1 0 0 25 0 1 0 390455431 1892352 386 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 462 386 48 102 0 357 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 1848

[startup+102.306 s]
/proc/loadavg: 1.03 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1560984/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=2280 CPUtime=102.27
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 521 0 0 0 10226 1 0 0 25 0 1 0 390455431 2334720 498 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134523985 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 570 498 48 102 0 465 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 2280

[startup+162.302 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1560536/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=2752 CPUtime=162.25
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 644 0 0 0 16224 1 0 0 25 0 1 0 390455431 2818048 588 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525800 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 688 588 48 102 0 583 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 2752

[startup+222.302 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1560344/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=2928 CPUtime=222.23
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 716 0 0 0 22221 2 0 0 25 0 1 0 390455431 2998272 639 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 732 639 48 102 0 627 0
Current children cumulated CPU time (s) 222.23
Current children cumulated vsize (KiB) 2928

[startup+282.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1560024/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=3176 CPUtime=282.21
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 785 0 0 0 28219 2 0 0 25 0 1 0 390455431 3252224 708 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 794 708 48 102 0 689 0
Current children cumulated CPU time (s) 282.21
Current children cumulated vsize (KiB) 3176

[startup+342.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1559704/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=3424 CPUtime=342.2
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 877 0 0 0 34217 3 0 0 25 0 1 0 390455431 3506176 776 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 856 776 48 102 0 751 0
Current children cumulated CPU time (s) 342.2
Current children cumulated vsize (KiB) 3424

[startup+402.302 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1559576/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=3552 CPUtime=402.18
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 911 0 0 0 40215 3 0 0 25 0 1 0 390455431 3637248 810 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 888 810 48 102 0 783 0
Current children cumulated CPU time (s) 402.18
Current children cumulated vsize (KiB) 3552

[startup+462.302 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1559512/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=3700 CPUtime=462.17
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 960 0 0 0 46213 4 0 0 25 0 1 0 390455431 3788800 857 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525783 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 925 857 48 102 0 820 0
Current children cumulated CPU time (s) 462.17
Current children cumulated vsize (KiB) 3700

[startup+522.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1559384/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=3820 CPUtime=522.16
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 988 0 0 0 52211 5 0 0 25 0 1 0 390455431 3911680 885 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134525554 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 955 885 48 102 0 850 0
Current children cumulated CPU time (s) 522.16
Current children cumulated vsize (KiB) 3820

[startup+582.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1559448/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=3764 CPUtime=582.14
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 990 0 0 0 58209 5 0 0 25 0 1 0 390455431 3854336 877 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134529742 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 941 877 48 102 0 836 0
Current children cumulated CPU time (s) 582.14
Current children cumulated vsize (KiB) 3764

[startup+642.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 7635
/proc/meminfo: memFree=1559448/2055920 swapFree=4170416/4192956
[pid=7634] ppid=7632 vsize=3764 CPUtime=642.13
/proc/7634/stat : 7634 (picosat) R 7632 7634 3249 0 -1 4194304 990 0 0 0 64207 6 0 0 25 0 1 0 390455431 3854336 877 18446744073709551615 134512640 134931368 4294956720 18446744073709551615 134582131 0 0 4096 0 0 0 0 17 1 0 0
/proc/7634/statm: 941 877 48 102 0 836 0
Current children cumulated CPU time (s) 642.13
Current children cumulated vsize (KiB) 3764

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

Child status: 20
Real time (s): 642.313
CPU time (s): 642.142
CPU user time (s): 642.08
CPU system time (s): 0.06199
CPU usage (%): 99.9734
Max. virtual memory (cumulated for all children) (KiB): 3828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 642.08
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 992
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= 12755

runsolver used 0.789879 second user time and 1.52777 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Mon Mar 12 13:10:06 UTC 2007

IDJOB= 339450
IDBENCH= 24747
IDSOLVER= 106
FILE ID= node5/339450-1173705006

PBS_JOBID= 4101464

Free space on /tmp= 66407 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/jarvisalo/mod2c-rand3bip-unsat-120-3.sat05-2340.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/339450-1173705006/picosat /tmp/evaluation/339450-1173705006/instance-339450-1173705006.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-339450-1173705006 -o ROOT/results/node5/solver-339450-1173705006 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/339450-1173705006/picosat /tmp/evaluation/339450-1173705006/instance-339450-1173705006.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  b8ad54973e17f84e99bf9d2e7bc768ce

RANDOM SEED= 92553244

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.224
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		: 3000.224
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:       1563448 kB
Buffers:         50372 kB
Cached:         347572 kB
SwapCached:       2236 kB
Active:         337800 kB
Inactive:        84712 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1563448 kB
SwapTotal:     4192956 kB
SwapFree:      4170416 kB
Dirty:             564 kB
Writeback:           0 kB
Mapped:          32404 kB
Slab:            55576 kB
Committed_AS:  1314376 kB
PageTables:       1696 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= 66407 MiB

End job on node5 on Mon Mar 12 13:20:49 UTC 2007