Trace number 2684353

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 0.1 fixedUNSAT 1.80172 1.80244

General information on the benchmark

Name/OPT-BIGINT-LIN/leberre/opb-trendy/misc2010/
random/rand.biglist/normalized-randf7d077.cudf.trendy.opb
MD5SUM7505b3b8fa8978a4c1da784fe96eedbd
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 benchmark1.80172
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables7732
Total number of constraints32111
Number of constraints which are clauses31799
Number of constraints which are cardinality constraints (but not clauses)312
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 3680
Biggest coefficient in the objective function 6249839688
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 3449904723137
Number of bits of the sum of numbers in the objective function 42
Biggest number in a constraint 6249839688
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 3449904723137
Number of bits of the biggest sum of numbers42
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.39/0.47	c constraints 312/0 clauses 25950/0 units 922
0.39/0.47	c vars 7732
0.39/0.49	c objective 3186 + 50
1.29/1.36	c 1.25481 93.6914 76 10050
1.69/1.79	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-2684353-1277515140/watcher-2684353-1277515140 -o /tmp/evaluation-result-2684353-1277515140/solver-2684353-1277515140 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684353-1277515140.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: 1.13 1.05 0.99 3/106 28162
/proc/meminfo: memFree=1845904/2059040 swapFree=4135672/4192956
[pid=28162] ppid=28160 vsize=2416 CPUtime=0
/proc/28162/stat : 28162 (pbct) R 28160 28162 27072 0 -1 4202496 296 0 0 0 0 0 0 0 20 0 1 0 127115523 2473984 216 1992294400 134512640 136421960 4288353616 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28162/statm: 604 216 138 467 0 135 0

[startup+0.103702 s]
/proc/loadavg: 1.13 1.05 0.99 3/106 28162
/proc/meminfo: memFree=1845904/2059040 swapFree=4135672/4192956
[pid=28162] ppid=28160 vsize=2576 CPUtime=0.1
/proc/28162/stat : 28162 (pbct) R 28160 28162 27072 0 -1 4202496 376 0 0 0 10 0 0 0 20 0 1 0 127115523 2637824 296 1992294400 134512640 136421960 4288353616 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28162/statm: 644 296 146 467 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2576

[startup+0.200718 s]
/proc/loadavg: 1.13 1.05 0.99 3/106 28162
/proc/meminfo: memFree=1845904/2059040 swapFree=4135672/4192956
[pid=28162] ppid=28160 vsize=2892 CPUtime=0.19
/proc/28162/stat : 28162 (pbct) R 28160 28162 27072 0 -1 4202496 454 0 0 0 19 0 0 0 20 0 1 0 127115523 2961408 374 1992294400 134512640 136421960 4288353616 18446744073709551615 135158986 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28162/statm: 723 374 146 467 0 254 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2892

[startup+0.300736 s]
/proc/loadavg: 1.13 1.05 0.99 3/106 28162
/proc/meminfo: memFree=1845904/2059040 swapFree=4135672/4192956
[pid=28162] ppid=28160 vsize=3420 CPUtime=0.29
/proc/28162/stat : 28162 (pbct) R 28160 28162 27072 0 -1 4202496 572 0 0 0 29 0 0 0 20 0 1 0 127115523 3502080 492 1992294400 134512640 136421960 4288353616 18446744073709551615 135809508 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28162/statm: 855 492 146 467 0 386 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3420

[startup+0.700808 s]
/proc/loadavg: 1.13 1.05 0.99 3/106 28162
/proc/meminfo: memFree=1845904/2059040 swapFree=4135672/4192956
[pid=28162] ppid=28160 vsize=26124 CPUtime=0.69
/proc/28162/stat : 28162 (pbct) R 28160 28162 27072 0 -1 4202496 6395 0 0 0 66 3 0 0 21 0 1 0 127115523 26750976 6146 1992294400 134512640 136421960 4288353616 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28162/statm: 6531 6148 190 467 0 6062 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 26124

[startup+1.50095 s]
/proc/loadavg: 1.13 1.05 0.99 2/107 28163
/proc/meminfo: memFree=1764428/2059040 swapFree=4135672/4192956
[pid=28162] ppid=28160 vsize=90780 CPUtime=1.49
/proc/28162/stat : 28162 (pbct) R 28160 28162 27072 0 -1 4202496 24681 0 0 0 138 11 0 0 23 0 1 0 127115523 92958720 21747 1992294400 134512640 136421960 4288353616 18446744073709551615 135818209 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28162/statm: 22695 21747 240 467 0 22226 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 90780

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

[startup+1.60097 s]
/proc/loadavg: 1.13 1.05 0.99 2/107 28163
/proc/meminfo: memFree=1764428/2059040 swapFree=4135672/4192956
[pid=28162] ppid=28160 vsize=90780 CPUtime=1.59
/proc/28162/stat : 28162 (pbct) R 28160 28162 27072 0 -1 4202496 24681 0 0 0 148 11 0 0 23 0 1 0 127115523 92958720 21747 1992294400 134512640 136421960 4288353616 18446744073709551615 135801307 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28162/statm: 22695 21747 240 467 0 22226 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 90780

[startup+1.801 s]
/proc/loadavg: 1.13 1.05 0.99 2/107 28163
/proc/meminfo: memFree=1764428/2059040 swapFree=4135672/4192956
[pid=28162] ppid=28160 vsize=0 CPUtime=1.79
/proc/28162/stat : 28162 (pbct) R 28160 28162 27072 0 -1 4202500 24682 0 0 0 168 11 0 0 25 0 1 0 127115523 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/28162/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 1.80244
CPU time (s): 1.80172
CPU user time (s): 1.68074
CPU system time (s): 0.120981
CPU usage (%): 99.9603
Max. virtual memory (cumulated for all children) (KiB): 95156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.68074
system time used= 0.120981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24682
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= 24

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node012 at 2010-06-26 03:19:00
IDJOB=2684353
IDBENCH=72367
IDSOLVER=1192
FILE ID=node012/2684353-1277515140
PBS_JOBID= 11190629
Free space on /tmp= 62428 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB10/normalized-PB10/OPT-BIGINT-LIN/leberre/opb-trendy/misc2010/random/rand.biglist/normalized-randf7d077.cudf.trendy.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684353-1277515140/watcher-2684353-1277515140 -o /tmp/evaluation-result-2684353-1277515140/solver-2684353-1277515140 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684353-1277515140.opb

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

MD5SUM BENCH= 7505b3b8fa8978a4c1da784fe96eedbd
RANDOM SEED=384613183

node012.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		: 3000.258
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		: 3000.258
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1846308 kB
Buffers:         27144 kB
Cached:          90048 kB
SwapCached:       9724 kB
Active:          71764 kB
Inactive:        58556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1846308 kB
SwapTotal:     4192956 kB
SwapFree:      4135672 kB
Dirty:            2952 kB
Writeback:          20 kB
AnonPages:       11712 kB
Mapped:           8308 kB
Slab:            60336 kB
PageTables:       4264 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183312 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= 62428 MiB
End job on node012 at 2010-06-26 03:19:02