Trace number 2684063

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 1.71774 1.71793

General information on the benchmark

Name/OPT-BIGINT-LIN/leberre/opb-paranoid/misc2010/
random/rand.biglist/normalized-rand5c0b12.cudf.paranoid.opb
MD5SUM4248d3570f7e2ae9a38255e9a19fdacb
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 benchmark0.504923
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables7106
Total number of constraints32379
Number of constraints which are clauses32038
Number of constraints which are cardinality constraints (but not clauses)341
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 2626
Biggest coefficient in the objective function 2077
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 1146502
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 2077
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 1146502
Number of bits of the biggest sum of numbers21
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
0.49/0.53	c constraints 341/0 clauses 25895/0 units 352
0.49/0.53	c vars 7106
0.49/0.53	c objective 2516 + 89
1.29/1.34	c 1.26081 86.5898 0 0
1.69/1.70	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-2684063-1277511995/watcher-2684063-1277511995 -o /tmp/evaluation-result-2684063-1277511995/solver-2684063-1277511995 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684063-1277511995.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: 1.14 1.03 1.01 3/105 32602
/proc/meminfo: memFree=1818800/2059040 swapFree=4139456/4192956
[pid=32602] ppid=32600 vsize=2488 CPUtime=0
/proc/32602/stat : 32602 (pbct) R 32600 32602 31905 0 -1 4202496 304 0 0 0 0 0 0 0 20 0 1 0 92490876 2547712 227 1992294400 134512640 136485738 4289997680 18446744073709551615 135844717 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32602/statm: 622 229 153 482 0 138 0

[startup+0.033709 s]
/proc/loadavg: 1.14 1.03 1.01 3/105 32602
/proc/meminfo: memFree=1818800/2059040 swapFree=4139456/4192956
[pid=32602] ppid=32600 vsize=2488 CPUtime=0.03
/proc/32602/stat : 32602 (pbct) R 32600 32602 31905 0 -1 4202496 314 0 0 0 3 0 0 0 20 0 1 0 92490876 2547712 237 1992294400 134512640 136485738 4289997680 18446744073709551615 134548797 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32602/statm: 622 237 157 482 0 138 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2488

[startup+0.101717 s]
/proc/loadavg: 1.14 1.03 1.01 3/105 32602
/proc/meminfo: memFree=1818800/2059040 swapFree=4139456/4192956
[pid=32602] ppid=32600 vsize=2620 CPUtime=0.09
/proc/32602/stat : 32602 (pbct) R 32600 32602 31905 0 -1 4202496 365 0 0 0 9 0 0 0 20 0 1 0 92490876 2682880 288 1992294400 134512640 136485738 4289997680 18446744073709551615 135843987 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32602/statm: 655 288 157 482 0 171 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2620

[startup+0.301742 s]
/proc/loadavg: 1.14 1.03 1.01 3/105 32602
/proc/meminfo: memFree=1818800/2059040 swapFree=4139456/4192956
[pid=32602] ppid=32600 vsize=3320 CPUtime=0.29
/proc/32602/stat : 32602 (pbct) R 32600 32602 31905 0 -1 4202496 538 0 0 0 29 0 0 0 20 0 1 0 92490876 3399680 461 1992294400 134512640 136485738 4289997680 18446744073709551615 135567032 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32602/statm: 830 462 157 482 0 346 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3320

[startup+0.701793 s]
/proc/loadavg: 1.14 1.03 1.01 3/105 32602
/proc/meminfo: memFree=1818800/2059040 swapFree=4139456/4192956
[pid=32602] ppid=32600 vsize=21044 CPUtime=0.69
/proc/32602/stat : 32602 (pbct) R 32600 32602 31905 0 -1 4202496 4979 0 0 0 67 2 0 0 21 0 1 0 92490876 21549056 4803 1992294400 134512640 136485738 4289997680 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32602/statm: 5261 4804 194 482 0 4777 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 21044

[startup+1.50189 s]
/proc/loadavg: 1.14 1.03 1.01 2/106 32603
/proc/meminfo: memFree=1773904/2059040 swapFree=4139456/4192956
[pid=32602] ppid=32600 vsize=82088 CPUtime=1.49
/proc/32602/stat : 32602 (pbct) R 32600 32602 31905 0 -1 4202496 22810 0 0 0 141 8 0 0 23 0 1 0 92490876 84058112 19761 1992294400 134512640 136485738 4289997680 18446744073709551615 134720160 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32602/statm: 20522 19761 232 482 0 20038 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 82088

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

[startup+1.70192 s]
/proc/loadavg: 1.14 1.03 1.01 2/106 32603
/proc/meminfo: memFree=1773904/2059040 swapFree=4139456/4192956
[pid=32602] ppid=32600 vsize=80548 CPUtime=1.69
/proc/32602/stat : 32602 (pbct) R 32600 32602 31905 0 -1 4202496 22810 0 0 0 161 8 0 0 24 0 1 0 92490876 82481152 19471 1992294400 134512640 136485738 4289997680 18446744073709551615 134604207 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32602/statm: 20137 19471 232 482 0 19653 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 80548

Child status: 0
Real time (s): 1.71793
CPU time (s): 1.71774
CPU user time (s): 1.61875
CPU system time (s): 0.098984
CPU usage (%): 99.9889
Max. virtual memory (cumulated for all children) (KiB): 87868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.61875
system time used= 0.098984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 22813
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= 4

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node054 at 2010-06-26 02:26:35
IDJOB=2684063
IDBENCH=72196
IDSOLVER=1170
FILE ID=node054/2684063-1277511995
PBS_JOBID= 11190609
Free space on /tmp= 62432 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-BIGINT-LIN/leberre/opb-paranoid/misc2010/random/rand.biglist/normalized-rand5c0b12.cudf.paranoid.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684063-1277511995/watcher-2684063-1277511995 -o /tmp/evaluation-result-2684063-1277511995/solver-2684063-1277511995 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684063-1277511995.opb

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

MD5SUM BENCH= 4248d3570f7e2ae9a38255e9a19fdacb
RANDOM SEED=1950762229

node054.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		: 3000.217
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	: 6000.43
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		: 3000.217
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1819328 kB
Buffers:         17760 kB
Cached:         127912 kB
SwapCached:       6072 kB
Active:          80568 kB
Inactive:        77796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1819328 kB
SwapTotal:     4192956 kB
SwapFree:      4139456 kB
Dirty:            3260 kB
Writeback:           0 kB
AnonPages:       11472 kB
Mapped:          11788 kB
Slab:            59516 kB
PageTables:       4108 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180468 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62428 MiB
End job on node054 at 2010-06-26 02:26:37