Trace number 2685503

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 NameAnswerCPU timeWall clock time
PB/CT 0.1Wrong UNSAT 1.62775 1.62812

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j60/
normalized-j6018_3-sat.opb
MD5SUMe1a332785ec9daa0e57c053b8cd6bb8d
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.134979
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables9516
Total number of constraints31278
Number of constraints which are clauses30970
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints308
Minimum length of a constraint1
Maximum length of a constraint18
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 18
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 120
Number of bits of the biggest sum of numbers7
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
0.29/0.32	c constraints 308/0 clauses 30576/0 units 774
0.29/0.32	c vars 9516
1.09/1.20	c 1.10283 94.2539 0 0
1.59/1.62	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-2685503-1278441528/watcher-2685503-1278441528 -o /tmp/evaluation-result-2685503-1278441528/solver-2685503-1278441528 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2685503-1278441528.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: 1.00 1.00 1.00 3/106 20991
/proc/meminfo: memFree=1734616/2059040 swapFree=4192956/4192956
[pid=20991] ppid=20989 vsize=2208 CPUtime=0
/proc/20991/stat : 20991 (pbct) R 20989 20991 19989 0 -1 4202496 257 0 0 0 0 0 0 0 20 0 1 0 12364372 2260992 180 1992294400 134512640 136485738 4294456640 18446744073709551615 135415716 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20991/statm: 552 180 157 482 0 68 0

[startup+0.106964 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 20991
/proc/meminfo: memFree=1734616/2059040 swapFree=4192956/4192956
[pid=20991] ppid=20989 vsize=2604 CPUtime=0.1
/proc/20991/stat : 20991 (pbct) R 20989 20991 19989 0 -1 4202496 356 0 0 0 10 0 0 0 20 0 1 0 12364372 2666496 279 1992294400 134512640 136485738 4294456640 18446744073709551615 135411128 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20991/statm: 651 279 157 482 0 167 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2604

[startup+0.200992 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 20991
/proc/meminfo: memFree=1734616/2059040 swapFree=4192956/4192956
[pid=20991] ppid=20989 vsize=3000 CPUtime=0.19
/proc/20991/stat : 20991 (pbct) R 20989 20991 19989 0 -1 4202496 438 0 0 0 19 0 0 0 20 0 1 0 12364372 3072000 361 1992294400 134512640 136485738 4294456640 18446744073709551615 135688645 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20991/statm: 750 361 157 482 0 266 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3000

[startup+0.301005 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 20991
/proc/meminfo: memFree=1734616/2059040 swapFree=4192956/4192956
[pid=20991] ppid=20989 vsize=3264 CPUtime=0.29
/proc/20991/stat : 20991 (pbct) R 20989 20991 19989 0 -1 4202496 515 0 0 0 29 0 0 0 20 0 1 0 12364372 3342336 438 1992294400 134512640 136485738 4294456640 18446744073709551615 134518363 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20991/statm: 816 438 157 482 0 332 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3264

[startup+0.701051 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 20991
/proc/meminfo: memFree=1734616/2059040 swapFree=4192956/4192956
[pid=20991] ppid=20989 vsize=45232 CPUtime=0.69
/proc/20991/stat : 20991 (pbct) R 20989 20991 19989 0 -1 4202496 11389 0 0 0 64 5 0 0 20 0 1 0 12364372 46317568 10735 1992294400 134512640 136485738 4294456640 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20991/statm: 11308 10736 191 482 0 10824 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 45232

[startup+1.50017 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20992
/proc/meminfo: memFree=1644832/2059040 swapFree=4192956/4192956
[pid=20991] ppid=20989 vsize=89412 CPUtime=1.49
/proc/20991/stat : 20991 (pbct) R 20989 20991 19989 0 -1 4202496 24713 0 0 0 140 9 0 0 23 0 1 0 12364372 91557888 21484 1992294400 134512640 136485738 4294456640 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20991/statm: 22353 21484 230 482 0 21869 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 89412

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

[startup+1.60118 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20992
/proc/meminfo: memFree=1644832/2059040 swapFree=4192956/4192956
[pid=20991] ppid=20989 vsize=83956 CPUtime=1.59
/proc/20991/stat : 20991 (pbct) R 20989 20991 19989 0 -1 4202496 24714 0 0 0 150 9 0 0 23 0 1 0 12364372 85970944 20683 1992294400 134512640 136485738 4294456640 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20991/statm: 20989 20683 231 482 0 20505 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 83956

Child status: 0
Real time (s): 1.62812
CPU time (s): 1.62775
CPU user time (s): 1.51877
CPU system time (s): 0.108983
CPU usage (%): 99.9771
Max. virtual memory (cumulated for all children) (KiB): 95124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.51877
system time used= 0.108983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24716
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= 2
involuntary context switches= 7

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node029 at 2010-07-06 20:38:48
IDJOB=2685503
IDBENCH=76130
IDSOLVER=1170
FILE ID=node029/2685503-1278441528
PBS_JOBID= 11233449
Free space on /tmp= 62560 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j60/normalized-j6018_3-sat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2685503-1278441528/watcher-2685503-1278441528 -o /tmp/evaluation-result-2685503-1278441528/solver-2685503-1278441528 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2685503-1278441528.opb

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

MD5SUM BENCH= e1a332785ec9daa0e57c053b8cd6bb8d
RANDOM SEED=260933119

node029.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		: 3000.264
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		: 3000.264
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:       1735020 kB
Buffers:         19436 kB
Cached:         170680 kB
SwapCached:          0 kB
Active:         133656 kB
Inactive:       116100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1735020 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2760 kB
Writeback:           0 kB
AnonPages:       59640 kB
Mapped:          14496 kB
Slab:            52388 kB
PageTables:       4148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182340 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= 62556 MiB
End job on node029 at 2010-07-06 20:38:50