Trace number 356243

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 75.9145 75.9344

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-11-u.cnf
MD5SUM770fa9cd880a43d98e936f33f4e86d7a
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark21.2898
Satisfiable
(Un)Satisfiability was proved
Number of variables156980
Number of clauses696581
Sum of the clauses size1582352
Maximum clause length10
Minimum clause length1
Number of clauses of size 113310
Number of clauses of size 2570471
Number of clauses of size 382900
Number of clauses of size 43320
Number of clauses of size 513280
Number of clauses of size over 513300

Solver Data (download as text)

75.87/75.93	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node12/watcher-356243-1176854746 -o ROOT/results/node12/solver-356243-1176854746 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/356243-1176854746/picosat /tmp/evaluation/356243-1176854746/instance-356243-1176854746.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: 0.92 0.97 0.97 3/77 29968
/proc/meminfo: memFree=1592752/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=728 CPUtime=0
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 97 0 0 0 0 0 0 0 18 0 1 0 161512027 745472 82 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 182 82 40 102 0 77 0

[startup+0.0396199 s]
/proc/loadavg: 0.92 0.97 0.97 3/77 29968
/proc/meminfo: memFree=1592752/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=1672 CPUtime=0.03
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 330 0 0 0 1 2 0 0 18 0 1 0 161512027 1712128 315 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 418 315 40 102 0 313 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1672

[startup+0.101613 s]
/proc/loadavg: 0.92 0.97 0.97 3/77 29968
/proc/meminfo: memFree=1592752/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=2796 CPUtime=0.09
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 459 0 0 0 4 5 0 0 18 0 1 0 161512027 2863104 435 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 699 435 40 102 0 594 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2796

[startup+0.301628 s]
/proc/loadavg: 0.92 0.97 0.97 3/77 29968
/proc/meminfo: memFree=1592752/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=3192 CPUtime=0.29
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 581 0 0 0 13 16 0 0 19 0 1 0 161512027 3268608 557 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 798 557 40 102 0 693 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3192

[startup+0.701669 s]
/proc/loadavg: 0.92 0.97 0.97 3/77 29968
/proc/meminfo: memFree=1592752/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=10532 CPUtime=0.69
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 2100 0 0 0 30 39 0 0 23 0 1 0 161512027 10784768 2076 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 2633 2076 40 102 0 2528 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10532

[startup+1.50175 s]
/proc/loadavg: 0.92 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1581096/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=20052 CPUtime=1.49
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 3160 0 0 0 68 81 0 0 25 0 1 0 161512027 20533248 3136 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 5013 3136 40 102 0 4908 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20052

[startup+3.10191 s]
/proc/loadavg: 0.92 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1578792/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=24272 CPUtime=3.09
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 4175 0 0 0 143 166 0 0 25 0 1 0 161512027 24854528 4151 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 6068 4151 40 102 0 5963 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 24272

[startup+6.30123 s]
/proc/loadavg: 0.93 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569768/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33092 CPUtime=6.29
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5787 0 0 0 354 275 0 0 25 0 1 0 161512027 33886208 5736 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8273 5736 48 102 0 8168 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 33092

[startup+12.7019 s]
/proc/loadavg: 0.93 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569704/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33092 CPUtime=12.69
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5796 0 0 0 994 275 0 0 25 0 1 0 161512027 33886208 5745 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8273 5745 48 102 0 8168 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 33092

[startup+25.5021 s]
/proc/loadavg: 0.95 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569832/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33092 CPUtime=25.49
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5796 0 0 0 2274 275 0 0 25 0 1 0 161512027 33886208 5745 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8273 5745 48 102 0 8168 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 33092

[startup+51.1027 s]
/proc/loadavg: 0.96 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569896/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33092 CPUtime=51.08
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5796 0 0 0 4833 275 0 0 25 0 1 0 161512027 33886208 5745 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8273 5745 48 102 0 8168 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 33092

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

[startup+63.902 s]
/proc/loadavg: 0.97 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569704/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33224 CPUtime=63.88
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5848 0 0 0 6113 275 0 0 25 0 1 0 161512027 34021376 5797 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8306 5797 48 102 0 8201 0
Current children cumulated CPU time (s) 63.88
Current children cumulated vsize (KiB) 33224

[startup+70.3016 s]
/proc/loadavg: 0.97 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569448/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33488 CPUtime=70.28
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5905 0 0 0 6753 275 0 0 25 0 1 0 161512027 34291712 5854 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525648 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8372 5854 48 102 0 8267 0
Current children cumulated CPU time (s) 70.28
Current children cumulated vsize (KiB) 33488

[startup+73.5019 s]
/proc/loadavg: 0.97 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569384/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33620 CPUtime=73.47
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5930 0 0 0 7072 275 0 0 25 0 1 0 161512027 34426880 5879 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525624 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8405 5879 48 102 0 8300 0
Current children cumulated CPU time (s) 73.47
Current children cumulated vsize (KiB) 33620

[startup+75.1011 s]
/proc/loadavg: 0.97 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569384/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33620 CPUtime=75.07
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5945 0 0 0 7232 275 0 0 25 0 1 0 161512027 34426880 5894 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8405 5894 48 102 0 8300 0
Current children cumulated CPU time (s) 75.07
Current children cumulated vsize (KiB) 33620

[startup+75.5011 s]
/proc/loadavg: 0.97 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569384/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33620 CPUtime=75.47
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5946 0 0 0 7272 275 0 0 25 0 1 0 161512027 34426880 5895 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134530822 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8405 5895 48 102 0 8300 0
Current children cumulated CPU time (s) 75.47
Current children cumulated vsize (KiB) 33620

[startup+75.9052 s]
/proc/loadavg: 0.97 0.97 0.97 2/78 29969
/proc/meminfo: memFree=1569256/2055920 swapFree=4154608/4192956
[pid=29968] ppid=29966 vsize=33624 CPUtime=75.87
/proc/29968/stat : 29968 (picosat) R 29966 29968 29342 0 -1 4194304 5979 0 0 0 7312 275 0 0 25 0 1 0 161512027 34430976 5928 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134533657 0 0 4096 0 0 0 0 17 1 0 0
/proc/29968/statm: 8406 5928 48 102 0 8301 0
Current children cumulated CPU time (s) 75.87
Current children cumulated vsize (KiB) 33624

Child status: 20
Real time (s): 75.9344
CPU time (s): 75.9145
CPU user time (s): 73.1539
CPU system time (s): 2.76058
CPU usage (%): 99.9738
Max. virtual memory (cumulated for all children) (KiB): 33624

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 73.1539
system time used= 2.76058
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5980
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= 1514

runsolver used 0.093985 second user time and 0.185971 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Wed Apr 18 00:05:47 UTC 2007

IDJOB= 356243
IDBENCH= 20343
IDSOLVER= 171
FILE ID= node12/356243-1176854746

PBS_JOBID= 4590214

Free space on /tmp= 66091 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/total-5-11-u.cnf
COMMAND LINE= /tmp/evaluation/356243-1176854746/picosat /tmp/evaluation/356243-1176854746/instance-356243-1176854746.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-356243-1176854746 -o ROOT/results/node12/solver-356243-1176854746 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/356243-1176854746/picosat /tmp/evaluation/356243-1176854746/instance-356243-1176854746.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  770fa9cd880a43d98e936f33f4e86d7a

RANDOM SEED= 897677082

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.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		: 3000.239
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	: 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		: 3000.239
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1593168 kB
Buffers:         38968 kB
Cached:         326404 kB
SwapCached:      17536 kB
Active:          54768 kB
Inactive:       340036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1593168 kB
SwapTotal:     4192956 kB
SwapFree:      4154608 kB
Dirty:           12500 kB
Writeback:           0 kB
Mapped:          30404 kB
Slab:            53476 kB
Committed_AS:  4268960 kB
PageTables:       1796 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= 66091 MiB

End job on node12 on Wed Apr 18 00:07:03 UTC 2007