Trace number 361723

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 NameAnswerCPU timeWall clock time
PBS4 2007-03-23UNSAT 4.6153 4.61794

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/
normalized-ooo.burch_dill.3.accl.ucl.opb
MD5SUM03090e2b7426cc03a4be73b62ee3d658
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark3.61545
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables4622
Total number of constraints12569
Number of constraints which are clauses11753
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints816
Minimum length of a constraint1
Maximum length of a constraint11
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 36
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 130
Number of bits of the biggest sum of numbers8
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 PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/361723-1176984995/instance-361723-1176984995.opb ......
4.59/4.61	c done parsing opb.
4.59/4.61	s UNSATISFIABLE
4.59/4.61	c Total Run Time					4.47132

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/361723-1176984995/instance-361723-1176984995.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/node52/watcher-361723-1176984995 -o ROOT/results/node52/solver-361723-1176984995 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/361723-1176984995/PBS4 /tmp/evaluation/361723-1176984995/instance-361723-1176984995.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: 1.01 1.00 0.94 3/64 12678
/proc/meminfo: memFree=1836492/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=1908 CPUtime=0
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 53344624 1953792 265 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135057389 0 0 4096 0 0 0 0 17 1 0 0
/proc/12678/statm: 477 265 87 219 0 254 0

[startup+0.050445 s]
/proc/loadavg: 1.01 1.00 0.94 3/64 12678
/proc/meminfo: memFree=1836492/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=2276 CPUtime=0.04
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 397 0 0 0 4 0 0 0 18 0 1 0 53344624 2330624 379 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596339 0 0 4096 0 0 0 0 17 1 0 0
/proc/12678/statm: 569 379 87 219 0 346 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2276

[startup+0.101448 s]
/proc/loadavg: 1.01 1.00 0.94 3/64 12678
/proc/meminfo: memFree=1836492/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=2856 CPUtime=0.09
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 532 0 0 0 9 0 0 0 18 0 1 0 53344624 2924544 465 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134590705 0 0 4096 0 0 0 0 17 1 0 0
/proc/12678/statm: 714 465 89 219 0 491 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2856

[startup+0.301462 s]
/proc/loadavg: 1.01 1.00 0.94 3/64 12678
/proc/meminfo: memFree=1836492/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=3436 CPUtime=0.29
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 726 0 0 0 29 0 0 0 19 0 1 0 53344624 3518464 659 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135157822 0 0 4096 16384 0 0 0 17 1 0 0
/proc/12678/statm: 859 659 94 219 0 636 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3436

[startup+0.701487 s]
/proc/loadavg: 1.01 1.00 0.94 3/64 12678
/proc/meminfo: memFree=1836492/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=4080 CPUtime=0.69
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 882 0 0 0 69 0 0 0 23 0 1 0 53344624 4177920 815 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/12678/statm: 1020 815 94 219 0 797 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4080

[startup+1.50154 s]
/proc/loadavg: 1.01 1.00 0.94 2/65 12679
/proc/meminfo: memFree=1833348/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=5704 CPUtime=1.49
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 1184 0 0 0 148 1 0 0 25 0 1 0 53344624 5840896 1020 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/12678/statm: 1426 1020 94 219 0 1203 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5704

[startup+3.10165 s]
/proc/loadavg: 1.01 1.00 0.94 2/65 12679
/proc/meminfo: memFree=1832004/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=8096 CPUtime=3.09
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 1733 0 0 0 307 2 0 0 25 0 1 0 53344624 8290304 1569 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134549281 0 0 4096 16384 0 0 0 17 1 0 0
/proc/12678/statm: 2024 1569 94 219 0 1801 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8096

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

[startup+3.9017 s]
/proc/loadavg: 1.01 1.00 0.94 2/65 12679
/proc/meminfo: memFree=1830404/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=8096 CPUtime=3.89
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 1950 0 0 0 387 2 0 0 25 0 1 0 53344624 8290304 1786 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/12678/statm: 2024 1786 94 219 0 1801 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 8096

[startup+4.30173 s]
/proc/loadavg: 1.01 1.00 0.94 2/65 12679
/proc/meminfo: memFree=1829252/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=12312 CPUtime=4.3
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 2055 0 0 0 427 3 0 0 25 0 1 0 53344624 12607488 1891 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/12678/statm: 3078 1891 94 219 0 2855 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 12312

[startup+4.50174 s]
/proc/loadavg: 1.01 1.00 0.94 2/65 12679
/proc/meminfo: memFree=1829252/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=12312 CPUtime=4.49
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 2114 0 0 0 446 3 0 0 25 0 1 0 53344624 12607488 1950 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/12678/statm: 3078 1950 94 219 0 2855 0
Current children cumulated CPU time (s) 4.49
Current children cumulated vsize (KiB) 12312

[startup+4.60175 s]
/proc/loadavg: 1.01 1.00 0.94 2/65 12679
/proc/meminfo: memFree=1829252/2055920 swapFree=4182956/4192956
[pid=12678] ppid=12676 vsize=12452 CPUtime=4.59
/proc/12678/stat : 12678 (PBS4) R 12676 12678 10381 0 -1 4194304 2148 0 0 0 456 3 0 0 25 0 1 0 53344624 12750848 1984 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/12678/statm: 3113 1984 94 219 0 2890 0
Current children cumulated CPU time (s) 4.59
Current children cumulated vsize (KiB) 12452

Child status: 0
Real time (s): 4.61794
CPU time (s): 4.6153
CPU user time (s): 4.5783
CPU system time (s): 0.036994
CPU usage (%): 99.9428
Max. virtual memory (cumulated for all children) (KiB): 12452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.5783
system time used= 0.036994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2171
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= 7

runsolver used 0.003999 second user time and 0.017997 second system time

The end

Launcher Data (download as text)

Begin job on node52 on Thu Apr 19 12:16:35 UTC 2007

IDJOB= 361723
IDBENCH= 1467
IDSOLVER= 157
FILE ID= node52/361723-1176984995

PBS_JOBID= 4630395

Free space on /tmp= 66312 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-ooo.burch_dill.3.accl.ucl.opb
COMMAND LINE= /tmp/evaluation/361723-1176984995/PBS4 /tmp/evaluation/361723-1176984995/instance-361723-1176984995.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node52/convwatcher-361723-1176984995 -o ROOT/results/node52/conversion-361723-1176984995 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/361723-1176984995/instance-361723-1176984995.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-361723-1176984995 -o ROOT/results/node52/solver-361723-1176984995 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/361723-1176984995/PBS4 /tmp/evaluation/361723-1176984995/instance-361723-1176984995.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  03090e2b7426cc03a4be73b62ee3d658

RANDOM SEED= 358011280

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node52.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		: 3000.236
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		: 3000.236
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:       1837028 kB
Buffers:          8444 kB
Cached:         160920 kB
SwapCached:       3832 kB
Active:          62180 kB
Inactive:       117252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1837028 kB
SwapTotal:     4192956 kB
SwapFree:      4182956 kB
Dirty:            1688 kB
Writeback:           0 kB
Mapped:          16060 kB
Slab:            25416 kB
Committed_AS:  1625308 kB
PageTables:       1488 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= 66312 MiB

End job on node52 on Thu Apr 19 12:16:40 UTC 2007