Trace number 356255

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 293.862 293.943

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/dated-5-11-u.cnf
MD5SUM083d28c2adf10233f37f8b5a078c94a9
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark149.063
Satisfiable
(Un)Satisfiability was proved
Number of variables108786
Number of clauses482639
Sum of the clauses size1096328
Maximum clause length10
Minimum clause length1
Number of clauses of size 19230
Number of clauses of size 2395289
Number of clauses of size 357400
Number of clauses of size 42300
Number of clauses of size 59200
Number of clauses of size over 59220

Solver Data (download as text)

293.81/293.93	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/node35/watcher-356255-1176854914 -o ROOT/results/node35/solver-356255-1176854914 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/356255-1176854914/picosat /tmp/evaluation/356255-1176854914/instance-356255-1176854914.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: 1.00 0.99 0.96 3/77 7799
/proc/meminfo: memFree=1825424/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=728 CPUtime=0
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 96 0 0 0 0 0 0 0 18 0 1 0 133406843 745472 81 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 182 82 40 102 0 77 0

[startup+0.0865681 s]
/proc/loadavg: 1.00 0.99 0.96 3/77 7799
/proc/meminfo: memFree=1825424/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=1672 CPUtime=0.08
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 340 0 0 0 4 4 0 0 18 0 1 0 133406843 1712128 325 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 418 325 40 102 0 313 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1672

[startup+0.10157 s]
/proc/loadavg: 1.00 0.99 0.96 3/77 7799
/proc/meminfo: memFree=1825424/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=1804 CPUtime=0.09
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 348 0 0 0 4 5 0 0 18 0 1 0 133406843 1847296 333 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 451 333 40 102 0 346 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1804

[startup+0.301594 s]
/proc/loadavg: 1.00 0.99 0.96 3/77 7799
/proc/meminfo: memFree=1825424/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=3228 CPUtime=0.29
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 673 0 0 0 12 17 0 0 19 0 1 0 133406843 3305472 658 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 807 658 40 102 0 702 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3228

[startup+0.701641 s]
/proc/loadavg: 1.00 0.99 0.96 3/77 7799
/proc/meminfo: memFree=1825424/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=10436 CPUtime=0.69
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 2071 0 0 0 31 38 0 0 22 0 1 0 133406843 10686464 2056 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 2609 2056 40 102 0 2504 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10436

[startup+1.50273 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1816840/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=12164 CPUtime=1.49
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 2487 0 0 0 67 82 0 0 25 0 1 0 133406843 12455936 2472 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 3041 2472 40 102 0 2936 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12164

[startup+3.10192 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1813896/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=15876 CPUtime=3.09
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 3525 0 0 0 143 166 0 0 25 0 1 0 133406843 16257024 3510 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 3969 3510 40 102 0 3864 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 15876

[startup+6.30129 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1809480/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=19004 CPUtime=6.29
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 3996 0 0 0 440 189 0 0 25 0 1 0 133406843 19460096 3968 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525619 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 4751 3968 48 102 0 4646 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 19004

[startup+12.701 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1809416/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=19004 CPUtime=12.68
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4001 0 0 0 1079 189 0 0 25 0 1 0 133406843 19460096 3973 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134531126 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 4751 3973 48 102 0 4646 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 19004

[startup+25.5015 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1807688/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=20984 CPUtime=25.48
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4484 0 0 0 2358 190 0 0 25 0 1 0 133406843 21487616 4456 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5246 4456 48 102 0 5141 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 20984

[startup+51.1015 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1806216/2055920 swapFree=4114324/4192956
[pid=7799] ppid=7797 vsize=22816 CPUtime=51.08
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4849 0 0 0 4917 191 0 0 25 0 1 0 133406843 23363584 4821 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525823 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5704 4821 48 102 0 5599 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 22816

[startup+102.306 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1806280/2055920 swapFree=4114388/4192956
[pid=7799] ppid=7797 vsize=22816 CPUtime=102.27
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4851 0 0 0 10036 191 0 0 25 0 1 0 133406843 23363584 4823 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5704 4823 48 102 0 5599 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 22816

[startup+162.302 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1806216/2055920 swapFree=4114388/4192956
[pid=7799] ppid=7797 vsize=22860 CPUtime=162.25
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4860 0 0 0 16033 192 0 0 25 0 1 0 133406843 23408640 4832 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134524236 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5715 4832 48 102 0 5610 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 22860

[startup+222.302 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1806216/2055920 swapFree=4114388/4192956
[pid=7799] ppid=7797 vsize=22860 CPUtime=222.23
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4867 0 0 0 22031 192 0 0 25 0 1 0 133406843 23408640 4839 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5715 4839 48 102 0 5610 0
Current children cumulated CPU time (s) 222.23
Current children cumulated vsize (KiB) 22860

[startup+282.302 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1805832/2055920 swapFree=4114452/4192956
[pid=7799] ppid=7797 vsize=23136 CPUtime=282.22
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4948 0 0 0 28029 193 0 0 25 0 1 0 133406843 23691264 4920 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134524112 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5784 4920 48 102 0 5679 0
Current children cumulated CPU time (s) 282.22
Current children cumulated vsize (KiB) 23136

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

[startup+287.901 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1805832/2055920 swapFree=4114452/4192956
[pid=7799] ppid=7797 vsize=23136 CPUtime=287.81
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4948 0 0 0 28588 193 0 0 25 0 1 0 133406843 23691264 4920 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134529486 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5784 4920 48 102 0 5679 0
Current children cumulated CPU time (s) 287.81
Current children cumulated vsize (KiB) 23136

[startup+291.102 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1805832/2055920 swapFree=4114452/4192956
[pid=7799] ppid=7797 vsize=23136 CPUtime=291.01
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4948 0 0 0 28908 193 0 0 25 0 1 0 133406843 23691264 4920 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5784 4920 48 102 0 5679 0
Current children cumulated CPU time (s) 291.01
Current children cumulated vsize (KiB) 23136

[startup+292.703 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1805832/2055920 swapFree=4114452/4192956
[pid=7799] ppid=7797 vsize=23136 CPUtime=292.61
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4948 0 0 0 29068 193 0 0 25 0 1 0 133406843 23691264 4920 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5784 4920 48 102 0 5679 0
Current children cumulated CPU time (s) 292.61
Current children cumulated vsize (KiB) 23136

[startup+293.502 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1805832/2055920 swapFree=4114452/4192956
[pid=7799] ppid=7797 vsize=23136 CPUtime=293.41
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4948 0 0 0 29148 193 0 0 25 0 1 0 133406843 23691264 4920 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5784 4920 48 102 0 5679 0
Current children cumulated CPU time (s) 293.41
Current children cumulated vsize (KiB) 23136

[startup+293.902 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 7800
/proc/meminfo: memFree=1805832/2055920 swapFree=4114452/4192956
[pid=7799] ppid=7797 vsize=23140 CPUtime=293.81
/proc/7799/stat : 7799 (picosat) R 7797 7799 7173 0 -1 4194304 4951 0 0 0 29188 193 0 0 25 0 1 0 133406843 23695360 4923 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134581922 0 0 4096 0 0 0 0 17 1 0 0
/proc/7799/statm: 5785 4923 48 102 0 5680 0
Current children cumulated CPU time (s) 293.81
Current children cumulated vsize (KiB) 23140

Child status: 20
Real time (s): 293.943
CPU time (s): 293.862
CPU user time (s): 291.924
CPU system time (s): 1.9387
CPU usage (%): 99.9727
Max. virtual memory (cumulated for all children) (KiB): 23140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 291.924
system time used= 1.93871
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4952
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= 280

runsolver used 0.32595 second user time and 0.708892 second system time

The end

Launcher Data (download as text)

Begin job on node35 on Wed Apr 18 00:08:34 UTC 2007

IDJOB= 356255
IDBENCH= 20346
IDSOLVER= 171
FILE ID= node35/356255-1176854914

PBS_JOBID= 4590219

Free space on /tmp= 66470 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/dated-5-11-u.cnf
COMMAND LINE= /tmp/evaluation/356255-1176854914/picosat /tmp/evaluation/356255-1176854914/instance-356255-1176854914.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-356255-1176854914 -o ROOT/results/node35/solver-356255-1176854914 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/356255-1176854914/picosat /tmp/evaluation/356255-1176854914/instance-356255-1176854914.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  083d28c2adf10233f37f8b5a078c94a9

RANDOM SEED= 586523061

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node35.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		: 3000.232
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		: 3000.232
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:       1825896 kB
Buffers:         33196 kB
Cached:         116840 kB
SwapCached:      24724 kB
Active:         119136 kB
Inactive:        76008 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1825896 kB
SwapTotal:     4192956 kB
SwapFree:      4114324 kB
Dirty:            8500 kB
Writeback:           0 kB
Mapped:          38700 kB
Slab:            20188 kB
Committed_AS:  2360320 kB
PageTables:       1996 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= 66470 MiB

End job on node35 on Wed Apr 18 00:13:28 UTC 2007