Trace number 2684041

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 0.273957 0.274874

General information on the benchmark

Name/OPT-BIGINT-LIN/leberre/opb-paranoid/misc2010/random/
rand.smallist/normalized-randab5933.cudf.paranoid.opb
MD5SUM14a9afa0d638875b131e24936e4a4990
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 benchmark0.273957
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables6377
Total number of constraints19627
Number of constraints which are clauses19624
Number of constraints which are cardinality constraints (but not clauses)3
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 3008
Biggest coefficient in the objective function 1865
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 2137288
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 1865
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 2137288
Number of bits of the biggest sum of numbers22
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
0.19/0.26	c constraints 3/0 clauses 12685/0 units 901
0.19/0.26	c vars 6377
0.19/0.27	c objective 2641 + 127
0.19/0.27	c solved in presolving
0.19/0.27	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-2684041-1277511797/watcher-2684041-1277511797 -o /tmp/evaluation-result-2684041-1277511797/solver-2684041-1277511797 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684041-1277511797.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: 1.34 1.13 1.04 3/105 31903
/proc/meminfo: memFree=1858744/2059040 swapFree=4138812/4192956
[pid=31903] ppid=31901 vsize=2416 CPUtime=0
/proc/31903/stat : 31903 (pbct) R 31901 31903 30950 0 -1 4202496 294 0 0 0 0 0 0 0 25 0 1 0 92473277 2473984 214 1992294400 134512640 136421960 4294679568 18446744073709551615 135161800 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31903/statm: 604 214 137 467 0 135 0

[startup+0.0128149 s]
/proc/loadavg: 1.34 1.13 1.04 3/105 31903
/proc/meminfo: memFree=1858744/2059040 swapFree=4138812/4192956
[pid=31903] ppid=31901 vsize=2416 CPUtime=0.01
/proc/31903/stat : 31903 (pbct) R 31901 31903 30950 0 -1 4202496 302 0 0 0 1 0 0 0 25 0 1 0 92473277 2473984 222 1992294400 134512640 136421960 4294679568 18446744073709551615 135378174 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31903/statm: 604 222 145 467 0 135 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2416

[startup+0.100824 s]
/proc/loadavg: 1.34 1.13 1.04 3/105 31903
/proc/meminfo: memFree=1858744/2059040 swapFree=4138812/4192956
[pid=31903] ppid=31901 vsize=2724 CPUtime=0.09
/proc/31903/stat : 31903 (pbct) R 31901 31903 30950 0 -1 4202496 385 0 0 0 9 0 0 0 25 0 1 0 92473277 2789376 305 1992294400 134512640 136421960 4294679568 18446744073709551615 135161995 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31903/statm: 681 305 145 467 0 212 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2724

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

[startup+0.200836 s]
/proc/loadavg: 1.34 1.13 1.04 3/105 31903
/proc/meminfo: memFree=1858744/2059040 swapFree=4138812/4192956
[pid=31903] ppid=31901 vsize=3120 CPUtime=0.19
/proc/31903/stat : 31903 (pbct) R 31901 31903 30950 0 -1 4202496 466 0 0 0 19 0 0 0 25 0 1 0 92473277 3194880 386 1992294400 134512640 136421960 4294679568 18446744073709551615 135829965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31903/statm: 780 386 146 467 0 311 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3120

Child status: 0
Real time (s): 0.274874
CPU time (s): 0.273957
CPU user time (s): 0.270958
CPU system time (s): 0.002999
CPU usage (%): 99.6664
Max. virtual memory (cumulated for all children) (KiB): 3120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.270958
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 477
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= 1

runsolver used 0.003999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node088 at 2010-06-26 02:23:17
IDJOB=2684041
IDBENCH=72183
IDSOLVER=1192
FILE ID=node088/2684041-1277511797
PBS_JOBID= 11190615
Free space on /tmp= 62468 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB10/normalized-PB10/OPT-BIGINT-LIN/leberre/opb-paranoid/misc2010/random/rand.smallist/normalized-randab5933.cudf.paranoid.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684041-1277511797/watcher-2684041-1277511797 -o /tmp/evaluation-result-2684041-1277511797/solver-2684041-1277511797 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684041-1277511797.opb

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

MD5SUM BENCH= 14a9afa0d638875b131e24936e4a4990
RANDOM SEED=1250973869

node088.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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1859148 kB
Buffers:         19184 kB
Cached:          90364 kB
SwapCached:       6152 kB
Active:          75848 kB
Inactive:        46424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1859148 kB
SwapTotal:     4192956 kB
SwapFree:      4138812 kB
Dirty:            2500 kB
Writeback:           0 kB
AnonPages:       11500 kB
Mapped:           8304 kB
Slab:            55828 kB
PageTables:       4148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182348 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= 62464 MiB
End job on node088 at 2010-06-26 02:23:18