Trace number 316022

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 241.386 241.468

General information on the benchmark

Nameindustrial/palacios/medium/
blocks-4-ipc5-h21-unknown.cnf
MD5SUM3b8c6114a974b09e9b1601ba0718cbf3
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark29.2646
Satisfiable
(Un)Satisfiability was proved
Number of variables135534
Number of clauses905980
Sum of the clauses size2447966
Maximum clause length417
Minimum clause length1
Number of clauses of size 1125
Number of clauses of size 2771665
Number of clauses of size 3128198
Number of clauses of size 41424
Number of clauses of size 579
Number of clauses of size over 54489

Solver Data (download as text)

241.31/241.46	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/node76/watcher-316022-1172663357 -o ROOT/results/node76/solver-316022-1172663357 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316022-1172663357/picosat /tmp/evaluation/316022-1172663357/instance-316022-1172663357.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: 0.91 0.95 0.96 3/69 22707
/proc/meminfo: memFree=1369152/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=884 CPUtime=0
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 124 0 0 0 0 0 0 0 20 0 1 0 286294018 905216 110 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 221 110 40 102 0 116 0

[startup+0.0341619 s]
/proc/loadavg: 0.91 0.95 0.96 3/69 22707
/proc/meminfo: memFree=1369152/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=884 CPUtime=0.02
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 139 0 0 0 1 1 0 0 20 0 1 0 286294018 905216 125 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 221 125 40 102 0 116 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 884

[startup+0.102227 s]
/proc/loadavg: 0.91 0.95 0.96 3/69 22707
/proc/meminfo: memFree=1369152/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=1364 CPUtime=0.09
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 236 0 0 0 4 5 0 0 20 0 1 0 286294018 1396736 220 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 341 220 46 102 0 236 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1364

[startup+0.301193 s]
/proc/loadavg: 0.91 0.95 0.96 3/69 22707
/proc/meminfo: memFree=1369152/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=2348 CPUtime=0.29
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 430 0 0 0 14 15 0 0 22 0 1 0 286294018 2404352 414 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 587 414 46 102 0 482 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2348

[startup+0.702237 s]
/proc/loadavg: 0.91 0.95 0.96 3/69 22707
/proc/meminfo: memFree=1369152/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=4180 CPUtime=0.69
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 777 0 0 0 32 37 0 0 25 0 1 0 286294018 4280320 761 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 1045 761 46 102 0 940 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4180

[startup+1.50133 s]
/proc/loadavg: 0.91 0.95 0.96 2/70 22708
/proc/meminfo: memFree=1365176/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=8080 CPUtime=1.49
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 1510 0 0 0 68 81 0 0 25 0 1 0 286294018 8273920 1494 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134528130 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 2020 1494 46 102 0 1915 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8080

[startup+3.10152 s]
/proc/loadavg: 0.91 0.95 0.96 3/70 22708
/proc/meminfo: memFree=1361400/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=11892 CPUtime=3.09
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 2805 0 0 0 139 170 0 0 25 0 1 0 286294018 12177408 2789 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 2973 2789 46 102 0 2868 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11892

[startup+6.30189 s]
/proc/loadavg: 0.92 0.95 0.96 2/70 22708
/proc/meminfo: memFree=1350912/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=23280 CPUtime=6.29
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 5381 0 0 0 276 353 0 0 25 0 1 0 286294018 23838720 5365 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 5820 5365 46 102 0 5715 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 23280

[startup+12.7016 s]
/proc/loadavg: 0.93 0.95 0.96 2/70 22708
/proc/meminfo: memFree=1343168/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=35896 CPUtime=12.69
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 6527 0 0 0 884 385 0 0 25 0 1 0 286294018 36757504 6511 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 8974 6511 48 102 0 8869 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 35896

[startup+25.5011 s]
/proc/loadavg: 0.94 0.96 0.96 2/70 22708
/proc/meminfo: memFree=1342080/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=37044 CPUtime=25.48
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 6838 0 0 0 2163 385 0 0 25 0 1 0 286294018 37933056 6822 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134549593 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 9261 6822 48 102 0 9156 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 37044

[startup+51.1011 s]
/proc/loadavg: 0.96 0.96 0.96 2/70 22708
/proc/meminfo: memFree=1339840/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=39104 CPUtime=51.06
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 7380 0 0 0 4720 386 0 0 25 0 1 0 286294018 40042496 7364 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134529850 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 9776 7364 48 102 0 9671 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 39104

[startup+102.306 s]
/proc/loadavg: 0.98 0.96 0.96 2/70 22708
/proc/meminfo: memFree=1335616/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=43356 CPUtime=102.25
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 8429 0 0 0 9838 387 0 0 25 0 1 0 286294018 44396544 8413 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525778 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 10839 8413 48 102 0 10734 0
Current children cumulated CPU time (s) 102.25
Current children cumulated vsize (KiB) 43356

[startup+162.302 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1332096/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=46892 CPUtime=162.23
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9324 0 0 0 15835 388 0 0 25 0 1 0 286294018 48017408 9308 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 11723 9308 48 102 0 11618 0
Current children cumulated CPU time (s) 162.23
Current children cumulated vsize (KiB) 46892

[startup+222.302 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1330496/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=48080 CPUtime=222.21
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9691 0 0 0 21833 388 0 0 25 0 1 0 286294018 49233920 9642 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134523087 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 12020 9642 48 102 0 11915 0
Current children cumulated CPU time (s) 222.21
Current children cumulated vsize (KiB) 48080

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

[startup+230.302 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1330496/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=48080 CPUtime=230.21
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9691 0 0 0 22633 388 0 0 25 0 1 0 286294018 49233920 9642 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 12020 9642 48 102 0 11915 0
Current children cumulated CPU time (s) 230.21
Current children cumulated vsize (KiB) 48080

[startup+236.702 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1330496/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=48080 CPUtime=236.61
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9691 0 0 0 23273 388 0 0 25 0 1 0 286294018 49233920 9642 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134524027 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 12020 9642 48 102 0 11915 0
Current children cumulated CPU time (s) 236.61
Current children cumulated vsize (KiB) 48080

[startup+239.902 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1330496/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=48080 CPUtime=239.81
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9691 0 0 0 23593 388 0 0 25 0 1 0 286294018 49233920 9642 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 12020 9642 48 102 0 11915 0
Current children cumulated CPU time (s) 239.81
Current children cumulated vsize (KiB) 48080

[startup+240.701 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1330496/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=48080 CPUtime=240.61
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9691 0 0 0 23673 388 0 0 25 0 1 0 286294018 49233920 9642 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 12020 9642 48 102 0 11915 0
Current children cumulated CPU time (s) 240.61
Current children cumulated vsize (KiB) 48080

[startup+241.101 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1330496/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=48080 CPUtime=241.01
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9691 0 0 0 23713 388 0 0 25 0 1 0 286294018 49233920 9642 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525672 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 12020 9642 48 102 0 11915 0
Current children cumulated CPU time (s) 241.01
Current children cumulated vsize (KiB) 48080

[startup+241.301 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1330496/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=48080 CPUtime=241.21
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9691 0 0 0 23733 388 0 0 25 0 1 0 286294018 49233920 9642 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134524075 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 12020 9642 48 102 0 11915 0
Current children cumulated CPU time (s) 241.21
Current children cumulated vsize (KiB) 48080

[startup+241.401 s]
/proc/loadavg: 0.99 0.97 0.96 2/70 22708
/proc/meminfo: memFree=1330496/2055888 swapFree=4087160/4096564
[pid=22707] ppid=22705 vsize=48080 CPUtime=241.31
/proc/22707/stat : 22707 (picosat) R 22705 22707 22605 0 -1 4194304 9691 0 0 0 23743 388 0 0 25 0 1 0 286294018 49233920 9642 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/22707/statm: 12020 9642 48 102 0 11915 0
Current children cumulated CPU time (s) 241.31
Current children cumulated vsize (KiB) 48080

Child status: 20
Real time (s): 241.468
CPU time (s): 241.386
CPU user time (s): 237.492
CPU system time (s): 3.89441
CPU usage (%): 99.9663
Max. virtual memory (cumulated for all children) (KiB): 48080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 237.492
system time used= 3.89441
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9693
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= 388

runsolver used 0.198969 second user time and 0.470928 second system time

The end

Launcher Data (download as text)

Begin job on node76 on Wed Feb 28 11:49:17 UTC 2007

IDJOB= 316022
IDBENCH= 20431
IDSOLVER= 106
FILE ID= node76/316022-1172663357

PBS_JOBID= 3981222

Free space on /tmp= 66600 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/palacios/medium/blocks-4-ipc5-h21-unknown.cnf
COMMAND LINE= /tmp/evaluation/316022-1172663357/picosat /tmp/evaluation/316022-1172663357/instance-316022-1172663357.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-316022-1172663357 -o ROOT/results/node76/solver-316022-1172663357 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316022-1172663357/picosat /tmp/evaluation/316022-1172663357/instance-316022-1172663357.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  3b8c6114a974b09e9b1601ba0718cbf3

RANDOM SEED= 774985387

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node76.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		: 3000.219
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	: 6006.18
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		: 3000.219
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:      2055888 kB
MemFree:       1369496 kB
Buffers:         17956 kB
Cached:         620180 kB
SwapCached:       2696 kB
Active:          70144 kB
Inactive:       577324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1369496 kB
SwapTotal:     4096564 kB
SwapFree:      4087160 kB
Dirty:           17032 kB
Writeback:           0 kB
Mapped:          15264 kB
Slab:            25184 kB
Committed_AS:  1092228 kB
PageTables:       1424 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= 66600 MiB

End job on node76 on Wed Feb 28 11:53:19 UTC 2007