Trace number 1774502

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 2.1 (Sat-race'08 Edition)? (MO) 15.9376 16.1737

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 benchmark59.403
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 WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |

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-1774502-1241219925/watcher-1774502-1241219925 -o /tmp/evaluation-result-1774502-1241219925/solver-1774502-1241219925 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1774502-1241219925.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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: 1.37 1.08 1.02 3/64 32170
/proc/meminfo: memFree=1006120/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=7472 CPUtime=0
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 423 0 0 0 0 0 0 0 18 0 1 0 150024672 7651328 406 1992294400 4194304 5092341 548682068848 18446744073709551615 4515648 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 1868 406 67 219 0 1646 0

[startup+0.0382579 s]
/proc/loadavg: 1.37 1.08 1.02 3/64 32170
/proc/meminfo: memFree=1006120/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=12668 CPUtime=0.03
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 1745 0 0 0 2 1 0 0 18 0 1 0 150024672 12972032 1728 1992294400 4194304 5092341 548682068848 18446744073709551615 4515607 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 3167 1728 67 219 0 2945 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 12668

[startup+0.10126 s]
/proc/loadavg: 1.37 1.08 1.02 3/64 32170
/proc/meminfo: memFree=1006120/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=20232 CPUtime=0.09
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 3658 0 0 0 7 2 0 0 18 0 1 0 150024672 20717568 3641 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 5058 3642 67 219 0 4836 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20232

[startup+0.301278 s]
/proc/loadavg: 1.37 1.08 1.02 3/64 32170
/proc/meminfo: memFree=1006120/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=37800 CPUtime=0.29
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 8851 0 0 0 25 4 0 0 19 0 1 0 150024672 38707200 8834 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 9450 8834 67 219 0 9228 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 37800

[startup+0.701313 s]
/proc/loadavg: 1.37 1.08 1.02 3/64 32170
/proc/meminfo: memFree=1006120/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=82320 CPUtime=0.69
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 17747 0 0 0 59 10 0 0 22 0 1 0 150024672 84295680 17730 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 20580 17731 67 219 0 20358 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 82320

[startup+1.50139 s]
/proc/loadavg: 1.37 1.08 1.02 2/65 32171
/proc/meminfo: memFree=904800/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=166560 CPUtime=1.5
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 37224 0 0 0 129 21 0 0 25 0 1 0 150024672 170557440 36981 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 41640 36981 67 219 0 41418 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 166560

[startup+3.10154 s]
/proc/loadavg: 1.37 1.08 1.02 2/65 32171
/proc/meminfo: memFree=792480/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=370676 CPUtime=3.09
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 76041 0 0 0 265 44 0 0 25 0 1 0 150024672 379572224 75798 1992294400 4194304 5092341 548682068848 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 92669 75798 67 219 0 92447 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 370676

[startup+6.30184 s]
/proc/loadavg: 1.34 1.08 1.02 2/65 32171
/proc/meminfo: memFree=482592/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=678032 CPUtime=6.29
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 152456 0 0 0 541 88 0 0 25 0 1 0 150024672 694304768 152213 1992294400 4194304 5092341 548682068848 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 169508 152215 67 219 0 169286 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 678032

[startup+12.7014 s]
/proc/loadavg: 1.31 1.08 1.02 2/65 32171
/proc/meminfo: memFree=14816/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=1466696 CPUtime=12.54
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 303945 0 0 0 1075 179 0 0 25 0 1 0 150024672 1501896704 303702 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 366674 303702 67 219 0 366452 0
Current children cumulated CPU time (s) 12.54
Current children cumulated vsize (KiB) 1466696



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+15.9027 s]
/proc/loadavg: 1.29 1.08 1.02 3/65 32171
/proc/meminfo: memFree=15008/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=1891228 CPUtime=15.66
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4194304 382358 0 0 0 1341 225 0 0 25 0 1 0 150024672 1936617472 382115 1992294400 4194304 5092341 548682068848 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/32170/statm: 472807 382115 67 219 0 472585 0
Current children cumulated CPU time (s) 15.66
Current children cumulated vsize (KiB) 1891228

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

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

[startup+16.0072 s]
/proc/loadavg: 1.29 1.08 1.02 3/65 32171
/proc/meminfo: memFree=15008/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=0 CPUtime=15.76
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4195332 382361 0 0 0 1341 235 0 0 25 0 1 0 150024672 0 0 1992294400 0 0 0 0 0 0 0 4096 3 0 0 0 17 0 0 0
/proc/32170/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 15.76
Current children cumulated vsize (KiB) 0

[startup+16.1025 s]
/proc/loadavg: 1.29 1.08 1.02 3/65 32171
/proc/meminfo: memFree=15008/2055920 swapFree=4181312/4192956
[pid=32170] ppid=32168 vsize=0 CPUtime=15.85
/proc/32170/stat : 32170 (minisat) R 32168 32170 32133 0 -1 4195332 382361 0 0 0 1341 244 0 0 25 0 1 0 150024672 0 0 1992294400 0 0 0 0 0 0 0 4096 3 0 0 0 17 0 0 0
/proc/32170/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 15.85
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 16.1737
CPU time (s): 15.9376
CPU user time (s): 13.418
CPU system time (s): 2.51962
CPU usage (%): 98.5398
Max. virtual memory (cumulated for all children) (KiB): 1891228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.418
system time used= 2.51962
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 382361
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= 3
involuntary context switches= 223

runsolver used 0.013997 second user time and 0.050992 second system time

The end

Launcher Data 

Begin job on node48 at 2009-05-02 01:19:29
IDJOB=1774502
IDBENCH=70953
IDSOLVER=608
FILE ID=node48/1774502-1241219925
PBS_JOBID= 9224762
Free space on /tmp= 65728 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/c32sat/post-cbmc-zfcp-2.8-u2-noholes.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1774502-1241219925/watcher-1774502-1241219925 -o /tmp/evaluation-result-1774502-1241219925/solver-1774502-1241219925 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1774502-1241219925.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c4aa2ddc60eee766fbdf95a32eed5b43
RANDOM SEED=697264423

node48.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		: 3000.209
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		: 3000.209
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:       1006600 kB
Buffers:         37728 kB
Cached:         919080 kB
SwapCached:       5460 kB
Active:         698164 kB
Inactive:       266432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1006600 kB
SwapTotal:     4192956 kB
SwapFree:      4181312 kB
Dirty:          233596 kB
Writeback:           0 kB
Mapped:          13448 kB
Slab:            70772 kB
Committed_AS:   754864 kB
PageTables:       1368 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= 65728 MiB
End job on node48 at 2009-05-02 01:19:47