Trace number 3309031

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
SAT09 reference solver:precosat 236UNSAT 0.025995 0.031795

General information on the benchmark

Nameapplication/leberre/
2dimensionalstrippacking/E07N15.cnf
MD5SUMa46c1f5024d18f7ce38b8231a36b8546
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.003998
Satisfiable
(Un)Satisfiability was proved
Number of variables4740
Number of clauses41363
Sum of the clauses size204185
Maximum clause length66
Minimum clause length1
Number of clauses of size 145
Number of clauses of size 212536
Number of clauses of size 38532
Number of clauses of size 41080
Number of clauses of size 52790
Number of clauses of size over 516380

Solver Data 

0.00/0.00	c PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-3309031-1303985914.cnf
0.00/0.00	c found header 'p cnf 4740 41363'
0.01/0.03	c finished parsing
0.01/0.03	c
0.01/0.03	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.01/0.03	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.01/0.03	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.01/0.03	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.01/0.03	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.01/0.03	c --random=1 --spread=2000 --seed=0 --skip=25
0.01/0.03	c
0.01/0.03	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.01/0.03	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.01/0.03	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.01/0.03	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.01/0.03	c
0.01/0.03	c starting search after 0.0 seconds
0.01/0.03	c no decision limit
0.01/0.03	c
0.01/0.03	c       original/binary      fixed     eliminated      learned       agility
0.01/0.03	c   seconds        variables     equivalent    conflicts       height       MB
0.01/0.03	c
0.01/0.03	c *    0.0    40643    4635     45    60      0       0      0    0.0   0    3
0.01/0.03	c 0    0.0    40643    3847    833    60      0       1      0    0.0   0    3
0.01/0.03	c
0.01/0.03	s UNSATISFIABLE
0.01/0.03	c
0.01/0.03	c 1 conflicts, 0 decisions, 0 random
0.01/0.03	c 0 iterations, 0 restarts, 0 skipped
0.01/0.03	c 0 enlarged, 0 shrunken, 0 rescored, 0 rebiased
0.01/0.03	c 0 simplifications, 0 reductions
0.01/0.03	c
0.01/0.03	c vars: 833 fixed, 60 equiv, 0 elim, 60 merged
0.01/0.03	c elim: 0 resolutions, 0 phases, 0 rounds
0.01/0.03	c sbst: 0% substituted, 0.0% nots, 0.0% ands, 0.0% xors, 0.0% ites
0.01/0.03	c arty: 0.00 and 0.00 xor average arity
0.01/0.03	c prbe: 0 probed, 0 phases, 0 rounds
0.01/0.03	c prbe: 0 failed, 0 lifted, 0 merged
0.01/0.03	c sccs: 0 non trivial, 0 fixed, 0 merged
0.01/0.03	c hash: 0 units, 60 merged
0.01/0.03	c mins: 0 learned, 0% deleted, 0 strong, 0 depth
0.01/0.03	c subs: 0 forward, 0 backward, 0 doms
0.01/0.03	c strs: 0 forward, 0 backward
0.01/0.03	c doms: 0 dominators, 0 high, 0 low
0.01/0.03	c prps: 833 propagations, 0.03 megaprops
0.01/0.03	c
0.01/0.03	c 0.0 seconds, 3 MB max, 0 MB recycled

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3309031-1303985914/watcher-3309031-1303985914 -o /tmp/evaluation-result-3309031-1303985914/solver-3309031-1303985914 -C 2400 -W 1300 -M 7680 HOME/precosat HOME/instance-3309031-1303985914.cnf 

running on 2 cores: 4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.11 1.80 2.37 5/183 14459
/proc/meminfo: memFree=13741800/32951124 swapFree=67111528/67111528
[pid=14459] ppid=14457 vsize=11800 CPUtime=0 cores=4,6
/proc/14459/stat : 14459 (runsolver) R 14457 14459 13993 0 -1 4202560 42 0 0 0 0 0 0 0 23 0 1 0 510189422 12083200 51 33554432000 4194304 5434984 140735121128880 18446744073709551615 4881607 0 2147483391 4096 24578 0 0 0 17 6 0 0 0
/proc/14459/statm: 2950 51 31 303 0 2644 0

[startup+0.0247179 s]
/proc/loadavg: 1.11 1.80 2.37 5/183 14459
/proc/meminfo: memFree=13741800/32951124 swapFree=67111528/67111528
[pid=14459] ppid=14457 vsize=3544 CPUtime=0.01 cores=4,6
/proc/14459/stat : 14459 (precosat) R 14457 14459 13993 0 -1 4202496 801 0 0 0 1 0 0 0 23 0 1 0 510189422 3629056 757 33554432000 134512640 135151029 4289649856 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 4 0 0 0
/proc/14459/statm: 886 758 65 156 0 729 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3544

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

[startup+0.0247179 s]
/proc/loadavg: 1.11 1.80 2.37 5/183 14459
/proc/meminfo: memFree=13741800/32951124 swapFree=67111528/67111528
[pid=14459] ppid=14457 vsize=3544 CPUtime=0.01 cores=4,6
/proc/14459/stat : 14459 (precosat) R 14457 14459 13993 0 -1 4202496 801 0 0 0 1 0 0 0 23 0 1 0 510189422 3629056 757 33554432000 134512640 135151029 4289649856 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 4 0 0 0
/proc/14459/statm: 886 758 65 156 0 729 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3544

Child status: 20
Real time (s): 0.031795
CPU time (s): 0.025995
CPU user time (s): 0.023996
CPU system time (s): 0.001999
CPU usage (%): 81.7583
Max. virtual memory (cumulated for all children) (KiB): 3544

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.023996
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1001
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 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node138 at 2011-04-28 12:18:35
IDJOB=3309031
IDBENCH=83469
IDSOLVER=1690
FILE ID=node138/3309031-1303985914
RUNJOBID= node138-1303985914-14430
PBS_JOBID= 13168688
Free space on /tmp= 71792 MiB

SOLVER NAME= SAT09 reference solver:precosat 236
BENCH NAME= SAT11/application/leberre/2dimensionalstrippacking/E07N15.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3309031-1303985914/watcher-3309031-1303985914 -o /tmp/evaluation-result-3309031-1303985914/solver-3309031-1303985914 -C 2400 -W 1300 -M 7680  HOME/precosat HOME/instance-3309031-1303985914.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= a46c1f5024d18f7ce38b8231a36b8546
RANDOM SEED=1545633894

node138.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.70
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      13742328 kB
Buffers:       2088192 kB
Cached:       16470444 kB
SwapCached:          0 kB
Active:       10711804 kB
Inactive:      7930536 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      13742328 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           24120 kB
Writeback:           0 kB
AnonPages:       83096 kB
Mapped:          15656 kB
Slab:           503328 kB
PageTables:       4736 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   228316 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71788 MiB
End job on node138 at 2011-04-28 12:18:35