Trace number 1833826

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
MiniSAT 09z 2009-03-22? (MO) 11.09 11.2128

General information on the benchmark

NameAPPLICATIONS/c32sat/
post-cbmc-zfcp-2.8-u2-noholes.cnf
MD5SUMc4aa2ddc60eee766fbdf95a32eed5b43
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark51.5012
Satisfiable
(Un)Satisfiability was proved
Number of variables10950109
Number of clauses32697150
Sum of the clauses size76320846
Maximum clause length65
Minimum clause length1
Number of clauses of size 12415
Number of clauses of size 221783823
Number of clauses of size 310907882
Number of clauses of size 41592
Number of clauses of size 5131
Number of clauses of size over 51307

Solver Data 

0.00/0.00	c Parsing...

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1833826-1242825351/watcher-1833826-1242825351 -o /tmp/evaluation-result-1833826-1242825351/solver-1833826-1242825351 -C 1200 -W 1800 -M 1800 SatELiteGTI HOME/instance-1833826-1242825351.cnf -random-seed=1388344573 

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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.45 1.12 1.03 3/64 17663
/proc/meminfo: memFree=1114472/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0

[startup+0.015498 s]
/proc/loadavg: 1.45 1.12 1.03 3/64 17663
/proc/meminfo: memFree=1114472/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101505 s]
/proc/loadavg: 1.45 1.12 1.03 3/64 17663
/proc/meminfo: memFree=1114472/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.301524 s]
/proc/loadavg: 1.45 1.12 1.03 3/64 17663
/proc/meminfo: memFree=1114472/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.701559 s]
/proc/loadavg: 1.45 1.12 1.03 3/64 17663
/proc/meminfo: memFree=1114472/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+1.50163 s]
/proc/loadavg: 1.49 1.13 1.04 2/66 17668
/proc/meminfo: memFree=970136/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0
[pid=17667] ppid=17663 vsize=250060 CPUtime=1.49
/proc/17667/stat : 17667 (SatELite_releas) R 17663 17663 17416 0 -1 4194304 53598 0 0 0 118 31 0 0 25 0 1 0 310567537 256061440 53584 1992294400 134512640 135223648 4294956128 18446744073709551615 134737310 0 0 4096 3 0 0 0 17 1 0 0
/proc/17667/statm: 62515 53585 50 173 0 62340 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 255416

[startup+3.10177 s]
/proc/loadavg: 1.49 1.13 1.04 2/66 17668
/proc/meminfo: memFree=817944/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0
[pid=17667] ppid=17663 vsize=503048 CPUtime=3.09
/proc/17667/stat : 17667 (SatELite_releas) R 17663 17663 17416 0 -1 4194304 107915 0 0 0 246 63 0 0 25 0 1 0 310567537 515121152 107901 1992294400 134512640 135223648 4294956128 18446744073709551615 134737310 0 0 4096 3 0 0 0 17 1 0 0
/proc/17667/statm: 125762 107902 50 173 0 125587 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 508404

[startup+6.30106 s]
/proc/loadavg: 1.45 1.13 1.04 2/66 17668
/proc/meminfo: memFree=375960/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0
[pid=17667] ppid=17663 vsize=1002156 CPUtime=6.28
/proc/17667/stat : 17667 (SatELite_releas) R 17663 17663 17416 0 -1 4194304 214579 0 0 0 505 123 0 0 25 0 1 0 310567537 1026207744 214565 1992294400 134512640 135223648 4294956128 18446744073709551615 134719062 0 0 4096 3 0 0 0 17 1 0 0
/proc/17667/statm: 250539 214566 50 173 0 250364 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 1007512



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+11.2015 s]
/proc/loadavg: 1.42 1.13 1.04 2/66 17668
/proc/meminfo: memFree=16088/2055920 swapFree=4180444/4192956
[pid=17663] ppid=17661 vsize=5356 CPUtime=0
/proc/17663/stat : 17663 (SatELiteGTI) S 17661 17663 17416 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310567536 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 221954761540 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17663/statm: 1339 237 197 169 0 50 0
[pid=17667] ppid=17663 vsize=1844788 CPUtime=11.09
/proc/17667/stat : 17667 (SatELite_releas) R 17663 17663 17416 0 -1 4194304 370557 0 0 0 891 218 0 0 25 0 1 0 310567537 1889062912 370543 1992294400 134512640 135223648 4294956128 18446744073709551615 134737310 0 0 4096 3 0 0 0 17 1 0 0
/proc/17667/statm: 461197 370544 50 173 0 461022 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 1850144

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 17663 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=999
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=4999
# CPU time returned by wait4() is 0.005998
# while last known CPU time is 11.09
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 11.2128
CPU time (s): 11.09
CPU user time (s): 8.91
CPU system time (s): 2.18
CPU usage (%): 98.9053
Max. virtual memory (cumulated for all children) (KiB): 1850144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.000999
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 560
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= 11
involuntary context switches= 5

runsolver used 0.016997 second user time and 0.033994 second system time

The end

Launcher Data 

Begin job on node43 at 2009-05-20 15:16:35
IDJOB=1833826
IDBENCH=70953
IDSOLVER=672
FILE ID=node43/1833826-1242825351
PBS_JOBID= 9322541
Free space on /tmp= 65488 MiB

SOLVER NAME= MiniSAT 09z 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/c32sat/post-cbmc-zfcp-2.8-u2-noholes.cnf
COMMAND LINE= SatELiteGTI BENCHNAME -random-seed=RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1833826-1242825351/watcher-1833826-1242825351 -o /tmp/evaluation-result-1833826-1242825351/solver-1833826-1242825351 -C 1200 -W 1800 -M 1800  SatELiteGTI HOME/instance-1833826-1242825351.cnf -random-seed=1388344573

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

MD5SUM BENCH= c4aa2ddc60eee766fbdf95a32eed5b43
RANDOM SEED=1388344573

node43.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		: 3000.237
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		: 3000.237
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:       1114888 kB
Buffers:         18488 kB
Cached:         866208 kB
SwapCached:       6580 kB
Active:         714812 kB
Inactive:       178708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1114888 kB
SwapTotal:     4192956 kB
SwapFree:      4180444 kB
Dirty:          254888 kB
Writeback:           0 kB
Mapped:          13940 kB
Slab:            33476 kB
Committed_AS:  1139996 kB
PageTables:       1448 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= 65488 MiB
End job on node43 at 2009-05-20 15:16:48