Trace number 2684309

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 NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1UNSAT 1.3438 1.34453

General information on the benchmark

Name/OPT-BIGINT-LIN/leberre/opb-trendy/misc2010/random/
rand.smallist/normalized-randdd5509.cudf.trendy.opb
MD5SUMe2c942457d20699ff4a0aca1c8c398ae
Bench CategoryOPT-BIGINT-LIN (optimisation, big 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 benchmark0.380941
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables7484
Total number of constraints23162
Number of constraints which are clauses23162
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 constraint1147
Number of terms in the objective function 3984
Biggest coefficient in the objective function 7928215784
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 9085727337239
Number of bits of the sum of numbers in the objective function 44
Biggest number in a constraint 7928215784
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 9085727337239
Number of bits of the biggest sum of numbers44
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.19/0.26	c constraints 0/0 clauses 21376/0 units 1703
0.19/0.26	c vars 7484
0.29/0.30	c objective 3106 + 0
1.00/1.01	c 0.940856 79.2109 0 0
1.29/1.33	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation 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-2684309-1277514970/watcher-2684309-1277514970 -o /tmp/evaluation-result-2684309-1277514970/solver-2684309-1277514970 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684309-1277514970.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): 2000 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: 0.98 1.05 1.02 3/106 31953
/proc/meminfo: memFree=1836216/2059040 swapFree=4139544/4192956
[pid=31953] ppid=31951 vsize=2488 CPUtime=0
/proc/31953/stat : 31953 (pbct) R 31951 31953 30798 0 -1 4202496 303 0 0 0 0 0 0 0 20 0 1 0 92788491 2547712 226 1992294400 134512640 136485738 4294484576 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31953/statm: 622 226 151 482 0 138 0

[startup+0.0180811 s]
/proc/loadavg: 0.98 1.05 1.02 3/106 31953
/proc/meminfo: memFree=1836216/2059040 swapFree=4139544/4192956
[pid=31953] ppid=31951 vsize=2488 CPUtime=0.01
/proc/31953/stat : 31953 (pbct) R 31951 31953 30798 0 -1 4202496 316 0 0 0 1 0 0 0 20 0 1 0 92788491 2547712 239 1992294400 134512640 136485738 4294484576 18446744073709551615 135416617 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31953/statm: 622 239 156 482 0 138 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2488

[startup+0.101088 s]
/proc/loadavg: 0.98 1.05 1.02 3/106 31953
/proc/meminfo: memFree=1836216/2059040 swapFree=4139544/4192956
[pid=31953] ppid=31951 vsize=2824 CPUtime=0.09
/proc/31953/stat : 31953 (pbct) R 31951 31953 30798 0 -1 4202496 395 0 0 0 9 0 0 0 20 0 1 0 92788491 2891776 318 1992294400 134512640 136485738 4294484576 18446744073709551615 135411120 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31953/statm: 706 318 157 482 0 222 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2824

[startup+0.301105 s]
/proc/loadavg: 0.98 1.05 1.02 3/106 31953
/proc/meminfo: memFree=1836216/2059040 swapFree=4139544/4192956
[pid=31953] ppid=31951 vsize=3352 CPUtime=0.29
/proc/31953/stat : 31953 (pbct) R 31951 31953 30798 0 -1 4202496 528 0 0 0 29 0 0 0 20 0 1 0 92788491 3432448 451 1992294400 134512640 136485738 4294484576 18446744073709551615 135180371 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31953/statm: 838 451 160 482 0 354 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3352

[startup+0.701141 s]
/proc/loadavg: 0.98 1.05 1.02 3/106 31953
/proc/meminfo: memFree=1836216/2059040 swapFree=4139544/4192956
[pid=31953] ppid=31951 vsize=45572 CPUtime=0.69
/proc/31953/stat : 31953 (pbct) R 31951 31953 30798 0 -1 4202496 11435 0 0 0 66 3 0 0 20 0 1 0 92788491 46665728 10866 1992294400 134512640 136485738 4294484576 18446744073709551615 135848207 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31953/statm: 11393 10867 198 482 0 10909 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 45572

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

[startup+1.10918 s]
/proc/loadavg: 0.98 1.05 1.02 2/107 31954
/proc/meminfo: memFree=1759204/2059040 swapFree=4139544/4192956
[pid=31953] ppid=31951 vsize=74260 CPUtime=1.1
/proc/31953/stat : 31953 (pbct) R 31951 31953 30798 0 -1 4202496 20734 0 0 0 103 7 0 0 22 0 1 0 92788491 76042240 18127 1992294400 134512640 136485738 4294484576 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31953/statm: 18565 18127 232 482 0 18081 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 74260

[startup+1.3012 s]
/proc/loadavg: 0.98 1.05 1.02 2/107 31954
/proc/meminfo: memFree=1759204/2059040 swapFree=4139544/4192956
[pid=31953] ppid=31951 vsize=74260 CPUtime=1.29
/proc/31953/stat : 31953 (pbct) R 31951 31953 30798 0 -1 4202496 20734 0 0 0 122 7 0 0 22 0 1 0 92788491 76042240 18127 1992294400 134512640 136485738 4294484576 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31953/statm: 18565 18127 232 482 0 18081 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 74260

Child status: 0
Real time (s): 1.34453
CPU time (s): 1.3438
CPU user time (s): 1.26281
CPU system time (s): 0.080987
CPU usage (%): 99.9457
Max. virtual memory (cumulated for all children) (KiB): 81108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.26281
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20737
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= 1
involuntary context switches= 3

runsolver used 0.006998 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node051 at 2010-06-26 03:16:10
IDJOB=2684309
IDBENCH=72340
IDSOLVER=1170
FILE ID=node051/2684309-1277514970
PBS_JOBID= 11190621
Free space on /tmp= 62556 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-BIGINT-LIN/leberre/opb-trendy/misc2010/random/rand.smallist/normalized-randdd5509.cudf.trendy.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684309-1277514970/watcher-2684309-1277514970 -o /tmp/evaluation-result-2684309-1277514970/solver-2684309-1277514970 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684309-1277514970.opb

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

MD5SUM BENCH= e2c942457d20699ff4a0aca1c8c398ae
RANDOM SEED=750771051

node051.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	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.255
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.51
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		: 3000.255
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.43
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1836620 kB
Buffers:         28712 kB
Cached:         100424 kB
SwapCached:       5868 kB
Active:          29680 kB
Inactive:       112276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1836620 kB
SwapTotal:     4192956 kB
SwapFree:      4139544 kB
Dirty:            3016 kB
Writeback:           0 kB
AnonPages:       11580 kB
Mapped:          11912 kB
Slab:            58300 kB
PageTables:       4228 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183056 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62556 MiB
End job on node051 at 2010-06-26 03:16:12