Trace number 1553250

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SAT07 reference solver: picosat 535UNSAT 1.84072 1.84106

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor032.cnf
MD5SUM93c9f18c75548b864ec69c2789cae658
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.418935
Satisfiable
(Un)Satisfiability was proved
Number of variables4210
Number of clauses12053
Sum of the clauses size28121
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28034
Number of clauses of size 34017
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.79/1.84	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1553250-1238712789/watcher-1553250-1238712789 -o /tmp/evaluation-result-1553250-1238712789/solver-1553250-1238712789 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1553250-1238712789.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): 1800 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: 1.07 1.02 1.06 2/64 27091
/proc/meminfo: memFree=1223728/2055920 swapFree=4176304/4192956
[pid=27091] ppid=27089 vsize=568 CPUtime=0
/proc/27091/stat : 27091 (picosat) R 27089 27091 26994 0 -1 4194304 72 0 0 0 0 0 0 0 20 0 1 0 1143941429 581632 58 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27091/statm: 142 58 40 102 0 37 0

[startup+0.039448 s]
/proc/loadavg: 1.07 1.02 1.06 2/64 27091
/proc/meminfo: memFree=1223728/2055920 swapFree=4176304/4192956
[pid=27091] ppid=27089 vsize=860 CPUtime=0.03
/proc/27091/stat : 27091 (picosat) R 27089 27091 26994 0 -1 4194304 149 0 0 0 1 2 0 0 20 0 1 0 1143941429 880640 135 1992294400 134512640 134931368 4294956224 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27091/statm: 215 135 40 102 0 110 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 860

[startup+0.102461 s]
/proc/loadavg: 1.07 1.02 1.06 2/64 27091
/proc/meminfo: memFree=1223728/2055920 swapFree=4176304/4192956
[pid=27091] ppid=27089 vsize=1356 CPUtime=0.09
/proc/27091/stat : 27091 (picosat) R 27089 27091 26994 0 -1 4194304 245 0 0 0 5 4 0 0 20 0 1 0 1143941429 1388544 231 1992294400 134512640 134931368 4294956224 18446744073709551615 134524040 0 0 4096 0 0 0 0 17 1 0 0
/proc/27091/statm: 339 231 42 102 0 234 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1356

[startup+0.301499 s]
/proc/loadavg: 1.07 1.02 1.06 2/64 27091
/proc/meminfo: memFree=1223728/2055920 swapFree=4176304/4192956
[pid=27091] ppid=27089 vsize=1496 CPUtime=0.29
/proc/27091/stat : 27091 (picosat) R 27089 27091 26994 0 -1 4194304 281 0 0 0 25 4 0 0 22 0 1 0 1143941429 1531904 265 1992294400 134512640 134931368 4294956224 18446744073709551615 134520301 0 0 4096 0 0 0 0 17 1 0 0
/proc/27091/statm: 374 265 48 102 0 269 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1496

[startup+0.701578 s]
/proc/loadavg: 1.07 1.02 1.06 2/64 27091
/proc/meminfo: memFree=1223728/2055920 swapFree=4176304/4192956
[pid=27091] ppid=27089 vsize=1628 CPUtime=0.69
/proc/27091/stat : 27091 (picosat) R 27089 27091 26994 0 -1 4194304 293 0 0 0 65 4 0 0 25 0 1 0 1143941429 1667072 277 1992294400 134512640 134931368 4294956224 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/27091/statm: 407 277 48 102 0 302 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1628

[startup+1.50174 s]
/proc/loadavg: 1.07 1.02 1.06 2/65 27092
/proc/meminfo: memFree=1222760/2055920 swapFree=4176304/4192956
[pid=27091] ppid=27089 vsize=1780 CPUtime=1.49
/proc/27091/stat : 27091 (picosat) R 27089 27091 26994 0 -1 4194304 331 0 0 0 145 4 0 0 25 0 1 0 1143941429 1822720 314 1992294400 134512640 134931368 4294956224 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/27091/statm: 445 314 48 102 0 340 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1780

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

[startup+1.70178 s]
/proc/loadavg: 1.07 1.02 1.06 2/65 27092
/proc/meminfo: memFree=1222760/2055920 swapFree=4176304/4192956
[pid=27091] ppid=27089 vsize=1780 CPUtime=1.69
/proc/27091/stat : 27091 (picosat) R 27089 27091 26994 0 -1 4194304 331 0 0 0 165 4 0 0 25 0 1 0 1143941429 1822720 314 1992294400 134512640 134931368 4294956224 18446744073709551615 134525785 0 0 4096 0 0 0 0 17 1 0 0
/proc/27091/statm: 445 314 48 102 0 340 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 1780

[startup+1.8018 s]
/proc/loadavg: 1.07 1.02 1.06 2/65 27092
/proc/meminfo: memFree=1222760/2055920 swapFree=4176304/4192956
[pid=27091] ppid=27089 vsize=1780 CPUtime=1.79
/proc/27091/stat : 27091 (picosat) R 27089 27091 26994 0 -1 4194304 332 0 0 0 175 4 0 0 25 0 1 0 1143941429 1822720 315 1992294400 134512640 134931368 4294956224 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/27091/statm: 445 315 48 102 0 340 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 1780

Child status: 20
Real time (s): 1.84106
CPU time (s): 1.84072
CPU user time (s): 1.79073
CPU system time (s): 0.049992
CPU usage (%): 99.9814
Max. virtual memory (cumulated for all children) (KiB): 1780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.79073
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 334
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= 2
involuntary context switches= 1

runsolver used 0.006998 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node53 at 2009-04-03 00:53:09
IDJOB=1553250
IDBENCH=70757
IDSOLVER=563
FILE ID=node53/1553250-1238712789
PBS_JOBID= 9085305
Free space on /tmp= 66036 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553250-1238712789/watcher-1553250-1238712789 -o /tmp/evaluation-result-1553250-1238712789/solver-1553250-1238712789 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1553250-1238712789.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED=572192186

node53.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.264
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		: 3000.264
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1224208 kB
Buffers:         92896 kB
Cached:         640348 kB
SwapCached:      10540 kB
Active:         211108 kB
Inactive:       534212 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1224208 kB
SwapTotal:     4192956 kB
SwapFree:      4176304 kB
Dirty:             744 kB
Writeback:           0 kB
Mapped:          17780 kB
Slab:            72440 kB
Committed_AS:  2773628 kB
PageTables:       1384 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= 66036 MiB
End job on node53 at 2009-04-03 00:53:11