Trace number 1825724

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
SATzilla2009_C 2009-03-22UNSAT 6.85596 6.8663

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.87571
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

6.77/6.86	c SATzilla is building models for class 2
6.77/6.86	c run presolver march_dl2004 for 5 seconds ... 
6.77/6.86	c Bin: Executing march_dl2004
6.77/6.86	c spawning binary file with 5 seconds ...
6.77/6.86	c child exit by a signal
6.77/6.86	c march_dl2004 returned code 137.
6.77/6.86	c run presolver mxc-sr08 for 5 seconds ... 
6.77/6.86	c Bin: Executing mxc-sr08
6.77/6.86	c spawning binary file with 5 seconds ...
6.77/6.86	c child exited successfully
6.77/6.86	c mxc-sr08 returned code 20.
6.77/6.86	s UNSATISFIABLE
6.77/6.86	c SATZILLA_TIME=6.850000

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-1825724-1242506062/watcher-1825724-1242506062 -o /tmp/evaluation-result-1825724-1242506062/solver-1825724-1242506062 -C 5000 -W 6000 -M 1800 HOME/SATzilla2009_C HOME/instance-1825724-1242506062.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): 6000 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: 1.11 1.07 1.02 2/65 14864
/proc/meminfo: memFree=1691728/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=0
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 278635730 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14864/statm: 514 112 96 399 0 111 0
[pid=14865] ppid=14864 vsize=4740 CPUtime=0
/proc/14865/stat : 14865 (march_dl2004) R 14864 14864 14605 0 -1 4194304 615 0 0 0 0 0 0 0 19 0 1 0 278635730 4853760 610 1992294400 134512640 134996440 4294956192 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14865/statm: 1185 612 49 118 0 1064 0

[startup+0.015859 s]
/proc/loadavg: 1.11 1.07 1.02 2/65 14864
/proc/meminfo: memFree=1691728/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=0
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 278635730 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14864/statm: 514 112 96 399 0 111 0
[pid=14865] ppid=14864 vsize=7652 CPUtime=0
/proc/14865/stat : 14865 (march_dl2004) R 14864 14864 14605 0 -1 4194304 1433 0 0 0 0 0 0 0 19 0 1 0 278635730 7835648 1429 1992294400 134512640 134996440 4294956192 18446744073709551615 134549749 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14865/statm: 1913 1435 50 118 0 1792 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9708

[startup+0.101868 s]
/proc/loadavg: 1.11 1.07 1.02 2/65 14864
/proc/meminfo: memFree=1691728/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=0
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 278635730 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14864/statm: 514 112 96 399 0 111 0
[pid=14865] ppid=14864 vsize=8708 CPUtime=0.09
/proc/14865/stat : 14865 (march_dl2004) R 14864 14864 14605 0 -1 4194304 1889 0 0 0 9 0 0 0 19 0 1 0 278635730 8916992 1884 1992294400 134512640 134996440 4294956192 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14865/statm: 2177 1884 50 118 0 2056 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10764

[startup+0.301894 s]
/proc/loadavg: 1.11 1.07 1.02 2/65 14864
/proc/meminfo: memFree=1691728/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=0
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 278635730 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14864/statm: 514 112 96 399 0 111 0
[pid=14865] ppid=14864 vsize=11348 CPUtime=0.29
/proc/14865/stat : 14865 (march_dl2004) R 14864 14864 14605 0 -1 4194304 2650 0 0 0 28 1 0 0 21 0 1 0 278635730 11620352 2645 1992294400 134512640 134996440 4294956192 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14865/statm: 2837 2645 50 118 0 2716 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13404

[startup+0.701953 s]
/proc/loadavg: 1.11 1.07 1.02 2/65 14864
/proc/meminfo: memFree=1691728/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=0
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 278635730 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14864/statm: 514 112 96 399 0 111 0
[pid=14865] ppid=14864 vsize=22404 CPUtime=0.69
/proc/14865/stat : 14865 (march_dl2004) R 14864 14864 14605 0 -1 4194304 5365 0 0 0 67 2 0 0 25 0 1 0 278635730 22941696 4825 1992294400 134512640 134996440 4294956192 18446744073709551615 134542888 0 0 8392704 0 0 0 0 17 0 0 0
/proc/14865/statm: 5601 4825 55 118 0 5480 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 24460

[startup+1.50104 s]
/proc/loadavg: 1.11 1.07 1.02 2/67 14866
/proc/meminfo: memFree=1664256/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=0
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 278635730 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14864/statm: 514 112 96 399 0 111 0
[pid=14865] ppid=14864 vsize=28688 CPUtime=1.48
/proc/14865/stat : 14865 (march_dl2004) R 14864 14864 14605 0 -1 4194304 10984 0 0 0 144 4 0 0 25 0 1 0 278635730 29376512 6406 1992294400 134512640 134996440 4294956192 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14865/statm: 7205 6409 55 118 0 7084 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 30744

[startup+3.10124 s]
/proc/loadavg: 1.11 1.07 1.02 2/67 14866
/proc/meminfo: memFree=1670976/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=0
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 278635730 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14864/statm: 514 112 96 399 0 111 0
[pid=14865] ppid=14864 vsize=29480 CPUtime=3.08
/proc/14865/stat : 14865 (march_dl2004) R 14864 14864 14605 0 -1 4194304 23257 0 0 0 298 10 0 0 25 0 1 0 278635730 30187520 6590 1992294400 134512640 134996440 4294956192 18446744073709551615 134543076 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14865/statm: 7370 6590 61 118 0 7249 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 31536

[startup+6.30164 s]
/proc/loadavg: 1.10 1.07 1.02 2/67 14867
/proc/meminfo: memFree=1665344/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=5
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 152 33954 0 0 0 0 484 16 16 0 1 0 278635730 2105344 121 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/14864/statm: 514 121 104 399 0 111 0
[pid=14867] ppid=14864 vsize=36924 CPUtime=1.27
/proc/14867/stat : 14867 (mxc-sr08) R 14864 14864 14605 0 -1 4194304 9508 0 0 0 124 3 0 0 25 0 1 0 278636231 37810176 8283 1992294400 134512640 135078026 4294956192 18446744073709551615 134565524 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14867/statm: 9231 8283 55 138 0 9090 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 38980

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

[startup+6.7017 s]
/proc/loadavg: 1.10 1.07 1.02 2/67 14867
/proc/meminfo: memFree=1655680/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=5
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 152 33954 0 0 0 0 484 16 16 0 1 0 278635730 2105344 121 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/14864/statm: 514 121 104 399 0 111 0
[pid=14867] ppid=14864 vsize=43472 CPUtime=1.67
/proc/14867/stat : 14867 (mxc-sr08) R 14864 14864 14605 0 -1 4194304 11152 0 0 0 163 4 0 0 25 0 1 0 278636231 44515328 9927 1992294400 134512640 135078026 4294956192 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14867/statm: 10868 9928 55 138 0 10727 0
Current children cumulated CPU time (s) 6.67
Current children cumulated vsize (KiB) 45528

[startup+6.80171 s]
/proc/loadavg: 1.10 1.07 1.02 2/67 14867
/proc/meminfo: memFree=1655680/2055920 swapFree=4179896/4192956
[pid=14864] ppid=14862 vsize=2056 CPUtime=5
/proc/14864/stat : 14864 (SATzilla2009_C) S 14862 14864 14605 0 -1 4194304 152 33954 0 0 0 0 484 16 16 0 1 0 278635730 2105344 121 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/14864/statm: 514 121 104 399 0 111 0
[pid=14867] ppid=14864 vsize=44924 CPUtime=1.77
/proc/14867/stat : 14867 (mxc-sr08) R 14864 14864 14605 0 -1 4194304 11576 0 0 0 173 4 0 0 25 0 1 0 278636231 46002176 10351 1992294400 134512640 135078026 4294956192 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14867/statm: 11231 10352 55 138 0 11090 0
Current children cumulated CPU time (s) 6.77
Current children cumulated vsize (KiB) 46980

Child status: 20
Real time (s): 6.8663
CPU time (s): 6.85596
CPU user time (s): 6.62999
CPU system time (s): 0.225965
CPU usage (%): 99.8494
Max. virtual memory (cumulated for all children) (KiB): 59064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.62999
system time used= 0.225965
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 45973
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= 32

runsolver used 0.009998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node92 at 2009-05-16 22:34:23
IDJOB=1825724
IDBENCH=24728
IDSOLVER=668
FILE ID=node92/1825724-1242506062
PBS_JOBID= 9306977
Free space on /tmp= 66276 MiB

SOLVER NAME= SATzilla2009_C 2009-03-22
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
COMMAND LINE= HOME/SATzilla2009_C BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1825724-1242506062/watcher-1825724-1242506062 -o /tmp/evaluation-result-1825724-1242506062/solver-1825724-1242506062 -C 5000 -W 6000 -M 1800  HOME/SATzilla2009_C HOME/instance-1825724-1242506062.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=1083001195

node92.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		: 3000.245
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		: 3000.245
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:       1692272 kB
Buffers:         44704 kB
Cached:         268048 kB
SwapCached:       7732 kB
Active:         142312 kB
Inactive:       179768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1692272 kB
SwapTotal:     4192956 kB
SwapFree:      4179896 kB
Dirty:           36340 kB
Writeback:           0 kB
Mapped:          14244 kB
Slab:            27508 kB
Committed_AS:   736388 kB
PageTables:       1472 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= 66248 MiB
End job on node92 at 2009-05-16 22:34:30