Trace number 2684201

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 1.54077 1.54118

General information on the benchmark

Name/OPT-BIGINT-LIN/leberre/opb-trendy/misc2010/
random/rand.newlist/normalized-rand00ebc7.cudf.trendy.opb
MD5SUMd349910953a64bc2742ec2f34b33c9f5
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 benchmark0.338948
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables6469
Total number of constraints27479
Number of constraints which are clauses27202
Number of constraints which are cardinality constraints (but not clauses)277
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint553
Number of terms in the objective function 3004
Biggest coefficient in the objective function 3402072064
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 1877939256247
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 3402072064
Number of bits of the biggest number in a constraint 32
Biggest sum of numbers in a constraint 1877939256247
Number of bits of the biggest sum of numbers41
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
0.29/0.35	c constraints 277/0 clauses 26530/0 units 507
0.29/0.35	c vars 6469
0.29/0.36	c objective 2679 + 0
1.10/1.17	c 1.10383 85.8711 0 0
1.49/1.53	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-2684201-1277514675/watcher-2684201-1277514675 -o /tmp/evaluation-result-2684201-1277514675/solver-2684201-1277514675 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684201-1277514675.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: 1.22 1.06 1.02 3/106 25573
/proc/meminfo: memFree=1859832/2059040 swapFree=4133944/4192956
[pid=25573] ppid=25571 vsize=2488 CPUtime=0
/proc/25573/stat : 25573 (pbct) R 25571 25573 24484 0 -1 4202496 308 0 0 0 0 0 0 0 25 0 1 0 127053910 2547712 230 1992294400 134512640 136485738 4287792016 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25573/statm: 622 230 151 482 0 138 0

[startup+0.0549281 s]
/proc/loadavg: 1.22 1.06 1.02 3/106 25573
/proc/meminfo: memFree=1859832/2059040 swapFree=4133944/4192956
[pid=25573] ppid=25571 vsize=2488 CPUtime=0.05
/proc/25573/stat : 25573 (pbct) R 25571 25573 24484 0 -1 4202496 335 0 0 0 5 0 0 0 25 0 1 0 127053910 2547712 257 1992294400 134512640 136485738 4287792016 18446744073709551615 135173296 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25573/statm: 622 257 157 482 0 138 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2488

[startup+0.100933 s]
/proc/loadavg: 1.22 1.06 1.02 3/106 25573
/proc/meminfo: memFree=1859832/2059040 swapFree=4133944/4192956
[pid=25573] ppid=25571 vsize=2624 CPUtime=0.09
/proc/25573/stat : 25573 (pbct) R 25571 25573 24484 0 -1 4202496 369 0 0 0 9 0 0 0 25 0 1 0 127053910 2686976 291 1992294400 134512640 136485738 4287792016 18446744073709551615 135756749 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25573/statm: 656 291 157 482 0 172 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2624

[startup+0.300953 s]
/proc/loadavg: 1.22 1.06 1.02 3/106 25573
/proc/meminfo: memFree=1859832/2059040 swapFree=4133944/4192956
[pid=25573] ppid=25571 vsize=3340 CPUtime=0.29
/proc/25573/stat : 25573 (pbct) R 25571 25573 24484 0 -1 4202496 541 0 0 0 29 0 0 0 25 0 1 0 127053910 3420160 463 1992294400 134512640 136485738 4287792016 18446744073709551615 135844777 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25573/statm: 835 463 157 482 0 351 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3340

[startup+0.700994 s]
/proc/loadavg: 1.22 1.06 1.02 3/106 25573
/proc/meminfo: memFree=1859832/2059040 swapFree=4133944/4192956
[pid=25573] ppid=25571 vsize=37160 CPUtime=0.69
/proc/25573/stat : 25573 (pbct) R 25571 25573 24484 0 -1 4202496 9286 0 0 0 67 2 0 0 25 0 1 0 127053910 38051840 8704 1992294400 134512640 136485738 4287792016 18446744073709551615 135317439 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25573/statm: 9290 8705 198 482 0 8806 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 37160

[startup+1.50107 s]
/proc/loadavg: 1.22 1.06 1.02 2/107 25574
/proc/meminfo: memFree=1779100/2059040 swapFree=4133944/4192956
[pid=25573] ppid=25571 vsize=80960 CPUtime=1.49
/proc/25573/stat : 25573 (pbct) R 25571 25573 24484 0 -1 4202496 22590 0 0 0 142 7 0 0 25 0 1 0 127053910 82903040 19480 1992294400 134512640 136485738 4287792016 18446744073709551615 135843987 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25573/statm: 20240 19480 232 482 0 19756 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 80960

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

Child status: 0
Real time (s): 1.54118
CPU time (s): 1.54077
CPU user time (s): 1.45678
CPU system time (s): 0.083987
CPU usage (%): 99.9731
Max. virtual memory (cumulated for all children) (KiB): 87168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.45678
system time used= 0.083987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 22593
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= 9

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node017 at 2010-06-26 03:11:15
IDJOB=2684201
IDBENCH=72293
IDSOLVER=1170
FILE ID=node017/2684201-1277514675
PBS_JOBID= 11190606
Free space on /tmp= 62232 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-BIGINT-LIN/leberre/opb-trendy/misc2010/random/rand.newlist/normalized-rand00ebc7.cudf.trendy.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684201-1277514675/watcher-2684201-1277514675 -o /tmp/evaluation-result-2684201-1277514675/solver-2684201-1277514675 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684201-1277514675.opb

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

MD5SUM BENCH= d349910953a64bc2742ec2f34b33c9f5
RANDOM SEED=772654158

node017.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1860236 kB
Buffers:          9184 kB
Cached:          96860 kB
SwapCached:      12080 kB
Active:          83084 kB
Inactive:        37688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1860236 kB
SwapTotal:     4192956 kB
SwapFree:      4133944 kB
Dirty:            3040 kB
Writeback:           0 kB
AnonPages:       12412 kB
Mapped:           8340 kB
Slab:            56152 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   184212 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= 62228 MiB
End job on node017 at 2010-06-26 03:11:17