Trace number 352012

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, and are wall clock time (not CPU 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 NameAnswerObjective functionCPU timeWall clock time
minisat+ 1.14Signal 6.69098 6.69839

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib2003/normalized-mps-v2-20-10-fast0507.opb
MD5SUM5548b3a1af88258afdf09b4f2d4db162
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark248
Best CPU time to get the best result obtained on this benchmark1800.16
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 239
Optimality of the best value was proved NO
Number of variables63009
Total number of constraints507
Number of constraints which are clauses507
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint7753
Number of terms in the objective function 63009
Biggest coefficient in the objective function 2
Number of bits for the biggest coefficient in the objective function 2
Sum of the numbers in the objective function 122425
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 122425
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c Parsing PB file...
5.19/5.20	c Converting 494 PB-constraints to clauses...
5.19/5.24	c   -- Unit propagations: (none)
5.19/5.24	c   -- Detecting intervals from adjacent constraints: ==
5.19/5.24	c   -- Clauses(.)/Splits(s): .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
5.29/5.35	c ==================================[MINISAT+]==================================
5.29/5.35	c | Conflicts | Original         | Learnt                           | Progress |
5.29/5.35	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
5.29/5.35	c ==============================================================================
5.29/5.35	c |         0 |     487   407371 |     162       0        0     nan |  0.000 % |
5.29/5.38	c ==============================================================================
5.29/5.38	c Found solution: 343
5.29/5.38	o 343
6.19/6.25	c ---[   0]--->

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/352012-1176619969/instance-352012-1176619969.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node17/watcher-352012-1176619969 -o ROOT/results/node17/solver-352012-1176619969 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/352012-1176619969/minisat+ /tmp/evaluation/352012-1176619969/instance-352012-1176619969.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 0.85 0.97 0.99 3/77 27624
/proc/meminfo: memFree=1549416/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=1352 CPUtime=0
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4194304 187 0 0 0 0 0 0 0 18 0 1 0 109914470 1384448 172 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135031278 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 338 172 67 215 0 120 0

[startup+0.0267929 s]
/proc/loadavg: 0.85 0.97 0.99 3/77 27624
/proc/meminfo: memFree=1549416/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=3472 CPUtime=0.02
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4194304 662 0 0 0 2 0 0 0 18 0 1 0 109914470 3555328 647 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134569966 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 868 648 67 215 0 650 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3472

[startup+0.1018 s]
/proc/loadavg: 0.85 0.97 0.99 3/77 27624
/proc/meminfo: memFree=1549416/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=9792 CPUtime=0.09
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4194304 2183 0 0 0 8 1 0 0 18 0 1 0 109914470 10027008 2035 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135031278 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 2448 2035 67 215 0 2230 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9792

[startup+0.30182 s]
/proc/loadavg: 0.85 0.97 0.99 3/77 27624
/proc/meminfo: memFree=1549416/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=14040 CPUtime=0.29
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4194304 3276 0 0 0 27 2 0 0 19 0 1 0 109914470 14376960 2996 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135010894 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 3510 2996 75 215 0 3292 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14040

[startup+0.701862 s]
/proc/loadavg: 0.85 0.97 0.99 3/77 27624
/proc/meminfo: memFree=1549416/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=15028 CPUtime=0.69
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4194304 3530 0 0 0 67 2 0 0 23 0 1 0 109914470 15388672 3248 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135007481 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 3757 3248 75 215 0 3539 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15028

[startup+1.50295 s]
/proc/loadavg: 0.85 0.97 0.99 2/78 27625
/proc/meminfo: memFree=1534816/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=19208 CPUtime=1.49
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4194304 4883 0 0 0 146 3 0 0 25 0 1 0 109914470 19668992 4263 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135003217 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 4802 4263 75 215 0 4584 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19208

[startup+3.10111 s]
/proc/loadavg: 0.86 0.97 0.99 2/78 27625
/proc/meminfo: memFree=1529760/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=27308 CPUtime=3.09
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4194304 7239 0 0 0 306 3 0 0 25 0 1 0 109914470 27963392 6284 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135006098 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 6827 6284 75 215 0 6609 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 27308

[startup+6.30145 s]
/proc/loadavg: 0.86 0.97 0.99 2/78 27625
/proc/meminfo: memFree=1511328/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=41944 CPUtime=6.29
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4194304 13113 0 0 0 622 7 0 0 25 0 1 0 109914470 42950656 10047 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135012143 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 10486 10047 101 215 0 10268 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 41944

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

[startup+6.50147 s]
/proc/loadavg: 0.87 0.97 0.99 2/78 27625
/proc/meminfo: memFree=1493152/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=54216 CPUtime=6.49
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4195840 16197 0 0 0 639 10 0 0 25 0 1 0 109914470 55517184 13116 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134665153 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 13554 13116 102 215 0 13336 0
Current children cumulated CPU time (s) 6.49
Current children cumulated vsize (KiB) 54216

[startup+6.60548 s]
/proc/loadavg: 0.87 0.97 0.99 2/78 27625
/proc/meminfo: memFree=1493152/2055920 swapFree=4153028/4192956
[pid=27624] ppid=27622 vsize=54216 CPUtime=6.59
/proc/27624/stat : 27624 (minisat+) R 27622 27624 27562 0 -1 4195840 16198 0 0 0 639 20 0 0 25 0 1 0 109914470 55517184 13116 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134665153 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27624/statm: 13554 13116 102 215 0 13336 0
Current children cumulated CPU time (s) 6.59
Current children cumulated vsize (KiB) 54216

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 6.69839
CPU time (s): 6.69098
CPU user time (s): 6.39403
CPU system time (s): 0.296954
CPU usage (%): 99.8894
Max. virtual memory (cumulated for all children) (KiB): 54216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.39403
system time used= 0.296954
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16506
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= 139

runsolver used 0.013997 second user time and 0.021996 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Sun Apr 15 06:52:49 UTC 2007

IDJOB= 352012
IDBENCH= 1874
IDSOLVER= 156
FILE ID= node17/352012-1176619969

PBS_JOBID= 4556851

Free space on /tmp= 66552 MiB

SOLVER NAME= minisat+ 1.14
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-fast0507.opb
COMMAND LINE= /tmp/evaluation/352012-1176619969/minisat+ /tmp/evaluation/352012-1176619969/instance-352012-1176619969.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node17/convwatcher-352012-1176619969 -o ROOT/results/node17/conversion-352012-1176619969 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/352012-1176619969/instance-352012-1176619969.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-352012-1176619969 -o ROOT/results/node17/solver-352012-1176619969 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/352012-1176619969/minisat+ /tmp/evaluation/352012-1176619969/instance-352012-1176619969.opb            

META MD5SUM SOLVER= e46aded85e5f265b61da9cdcce06370e
MD5SUM BENCH=  5548b3a1af88258afdf09b4f2d4db162

RANDOM SEED= 406560923

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.240
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		: 3000.240
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:       1549888 kB
Buffers:         62956 kB
Cached:         364464 kB
SwapCached:       2680 kB
Active:         214800 kB
Inactive:       235676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1549888 kB
SwapTotal:     4192956 kB
SwapFree:      4153028 kB
Dirty:            7088 kB
Writeback:           0 kB
Mapped:          29916 kB
Slab:            41168 kB
Committed_AS:  5179500 kB
PageTables:       1796 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= 66501 MiB

End job on node17 on Sun Apr 15 06:52:56 UTC 2007