Trace number 2687681

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 0.1Wrong UNSAT 4.15737 4.15985

General information on the benchmark

Name/OPT-SMALLINT-LIN/oliveras/j30opt/
normalized-j3010_4.std.opb
MD5SUM2e6841409da1a029f00ccbfd39213ba7
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark58
Best CPU time to get the best result obtained on this benchmark5.54715
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables18662
Total number of constraints59613
Number of constraints which are clauses58413
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1200
Minimum length of a constraint1
Maximum length of a constraint25
Number of terms in the objective function 300
Biggest coefficient in the objective function 300
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 45150
Number of bits of the sum of numbers in the objective function 16
Biggest number in a constraint 300
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 45150
Number of bits of the biggest sum of numbers16
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
0.59/0.64	c constraints 900/0 clauses 58238/0 units 6083
0.59/0.64	c vars 18662
0.59/0.64	c objective 300 + 0
3.09/3.10	c 2.86556 224.711 0 0
4.09/4.15	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-2687681-1278455064/watcher-2687681-1278455064 -o /tmp/evaluation-result-2687681-1278455064/solver-2687681-1278455064 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2687681-1278455064.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: 1.23 1.05 1.02 3/105 22138
/proc/meminfo: memFree=1845228/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=2208 CPUtime=0
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 263 0 0 0 0 0 0 0 25 0 1 0 13714837 2260992 185 1992294400 134512640 136485738 4289872816 18446744073709551615 135180720 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22138/statm: 552 185 156 482 0 68 0

[startup+0.0732029 s]
/proc/loadavg: 1.23 1.05 1.02 3/105 22138
/proc/meminfo: memFree=1845228/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=2472 CPUtime=0.07
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 338 0 0 0 7 0 0 0 25 0 1 0 13714837 2531328 260 1992294400 134512640 136485738 4289872816 18446744073709551615 135856851 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22138/statm: 618 260 156 482 0 134 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2472

[startup+0.101208 s]
/proc/loadavg: 1.23 1.05 1.02 3/105 22138
/proc/meminfo: memFree=1845228/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=2604 CPUtime=0.09
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 360 0 0 0 9 0 0 0 25 0 1 0 13714837 2666496 282 1992294400 134512640 136485738 4289872816 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22138/statm: 651 282 157 482 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2604

[startup+0.300245 s]
/proc/loadavg: 1.23 1.05 1.02 3/105 22138
/proc/meminfo: memFree=1845228/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=3524 CPUtime=0.29
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 592 0 0 0 29 0 0 0 25 0 1 0 13714837 3608576 481 1992294400 134512640 136485738 4289872816 18446744073709551615 134517558 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22138/statm: 881 481 157 482 0 397 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3524

[startup+0.700321 s]
/proc/loadavg: 1.23 1.05 1.02 3/105 22138
/proc/meminfo: memFree=1845228/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=14144 CPUtime=0.69
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 3250 0 0 0 68 1 0 0 25 0 1 0 13714837 14483456 3139 1992294400 134512640 136485738 4289872816 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22138/statm: 3536 3140 193 482 0 3052 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14144

[startup+1.50047 s]
/proc/loadavg: 1.21 1.05 1.02 2/106 22139
/proc/meminfo: memFree=1795744/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=96356 CPUtime=1.49
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 25181 0 0 0 139 10 0 0 25 0 1 0 13714837 98668544 23295 1992294400 134512640 136485738 4289872816 18446744073709551615 135331412 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22138/statm: 24089 23295 198 482 0 23605 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 96356

[startup+3.10178 s]
/proc/loadavg: 1.21 1.05 1.02 2/106 22139
/proc/meminfo: memFree=1718244/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=230616 CPUtime=3.09
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 60490 0 0 0 286 23 0 0 25 0 1 0 13714837 236150784 55612 1992294400 134512640 136485738 4289872816 18446744073709551615 134948160 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22138/statm: 57654 55612 210 482 0 57170 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 230616

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

[startup+3.90193 s]
/proc/loadavg: 1.21 1.05 1.02 2/106 22139
/proc/meminfo: memFree=1626980/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=214800 CPUtime=3.89
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 60516 0 0 0 366 23 0 0 25 0 1 0 13714837 219955200 52383 1992294400 134512640 136485738 4289872816 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22138/statm: 53700 52383 232 482 0 53216 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 214800

[startup+4.10197 s]
/proc/loadavg: 1.21 1.05 1.02 2/106 22139
/proc/meminfo: memFree=1626980/2059040 swapFree=4143660/4192956
[pid=22138] ppid=22136 vsize=200216 CPUtime=4.09
/proc/22138/stat : 22138 (pbct) R 22136 22138 21580 0 -1 4202496 60517 0 0 0 386 23 0 0 25 0 1 0 13714837 205021184 49773 1992294400 134512640 136485738 4289872816 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22138/statm: 50054 49773 233 482 0 49570 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 200216

Child status: 0
Real time (s): 4.15985
CPU time (s): 4.15737
CPU user time (s): 3.89741
CPU system time (s): 0.25996
CPU usage (%): 99.9404
Max. virtual memory (cumulated for all children) (KiB): 230616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.89741
system time used= 0.25996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 60519
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= 5

runsolver used 0.003999 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node086 at 2010-07-07 00:24:24
IDJOB=2687681
IDBENCH=78353
IDSOLVER=1170
FILE ID=node086/2687681-1278455064
PBS_JOBID= 11233532
Free space on /tmp= 62432 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/oliveras/j30opt/normalized-j3010_4.std.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2687681-1278455064/watcher-2687681-1278455064 -o /tmp/evaluation-result-2687681-1278455064/solver-2687681-1278455064 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2687681-1278455064.opb

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

MD5SUM BENCH= 2e6841409da1a029f00ccbfd39213ba7
RANDOM SEED=169292695

node086.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		: 3000.262
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	: 6000.52
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		: 3000.262
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	: 5999.50
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1845756 kB
Buffers:          9404 kB
Cached:         100152 kB
SwapCached:      19568 kB
Active:          31044 kB
Inactive:       109964 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1845756 kB
SwapTotal:     4192956 kB
SwapFree:      4143660 kB
Dirty:            3988 kB
Writeback:           0 kB
AnonPages:       14752 kB
Mapped:          11920 kB
Slab:            50508 kB
PageTables:       4148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180196 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 node086 at 2010-07-07 00:24:28