Trace number 2669143

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 2.14967 2.15077

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/www.ps.uni-sb.de/
~walser/benchmarks/ppp-problems/normalized-ppp:1-12,16.opb
MD5SUM6441cbb759000c1a64397279f4b3f0ed
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.463928
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables4662
Total number of constraints31725
Number of constraints which are clauses30696
Number of constraints which are cardinality constraints (but not clauses)951
Number of constraints which are nor clauses,nor cardinality constraints78
Minimum length of a constraint3
Maximum length of a constraint29
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 10
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 102
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
0.39/0.49	c constraints 1029/0 clauses 30696/0 units 0
0.39/0.49	c vars 4662
1.59/1.67	c 1.56376 103.777 0 0
2.10/2.14	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-2669143-1276435568/watcher-2669143-1276435568 -o /tmp/evaluation-result-2669143-1276435568/solver-2669143-1276435568 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669143-1276435568.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: 0.85 0.99 0.99 3/106 26954
/proc/meminfo: memFree=1873220/2059040 swapFree=4135652/4192956
[pid=26954] ppid=26952 vsize=2340 CPUtime=0
/proc/26954/stat : 26954 (pbct) R 26952 26954 25934 0 -1 4202496 289 0 0 0 0 0 0 0 19 0 1 0 19160766 2396160 211 1992294400 134512640 136485738 4286751728 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26954/statm: 585 211 156 482 0 101 0

[startup+0.091301 s]
/proc/loadavg: 0.85 0.99 0.99 3/106 26954
/proc/meminfo: memFree=1873220/2059040 swapFree=4135652/4192956
[pid=26954] ppid=26952 vsize=2880 CPUtime=0.08
/proc/26954/stat : 26954 (pbct) R 26952 26954 25934 0 -1 4202496 435 0 0 0 8 0 0 0 19 0 1 0 19160766 2949120 357 1992294400 134512640 136485738 4286751728 18446744073709551615 135171317 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26954/statm: 720 357 156 482 0 236 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2880

[startup+0.101301 s]
/proc/loadavg: 0.85 0.99 0.99 3/106 26954
/proc/meminfo: memFree=1873220/2059040 swapFree=4135652/4192956
[pid=26954] ppid=26952 vsize=2880 CPUtime=0.09
/proc/26954/stat : 26954 (pbct) R 26952 26954 25934 0 -1 4202496 440 0 0 0 9 0 0 0 20 0 1 0 19160766 2949120 362 1992294400 134512640 136485738 4286751728 18446744073709551615 134549736 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26954/statm: 720 362 156 482 0 236 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2880

[startup+0.301322 s]
/proc/loadavg: 0.85 0.99 0.99 3/106 26954
/proc/meminfo: memFree=1873220/2059040 swapFree=4135652/4192956
[pid=26954] ppid=26952 vsize=3408 CPUtime=0.29
/proc/26954/stat : 26954 (pbct) R 26952 26954 25934 0 -1 4202496 558 0 0 0 29 0 0 0 20 0 1 0 19160766 3489792 480 1992294400 134512640 136485738 4286751728 18446744073709551615 134548708 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26954/statm: 852 480 156 482 0 368 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3408

[startup+0.701362 s]
/proc/loadavg: 0.85 0.99 0.99 3/106 26954
/proc/meminfo: memFree=1873220/2059040 swapFree=4135652/4192956
[pid=26954] ppid=26952 vsize=22836 CPUtime=0.69
/proc/26954/stat : 26954 (pbct) R 26952 26954 25934 0 -1 4202496 5584 0 0 0 66 3 0 0 21 0 1 0 19160766 23384064 5302 1992294400 134512640 136485738 4286751728 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26954/statm: 5709 5303 191 482 0 5225 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 22836

[startup+1.50144 s]
/proc/loadavg: 0.85 0.99 0.99 2/107 26955
/proc/meminfo: memFree=1832912/2059040 swapFree=4135652/4192956
[pid=26954] ppid=26952 vsize=102452 CPUtime=1.49
/proc/26954/stat : 26954 (pbct) R 26952 26954 25934 0 -1 4202496 26686 0 0 0 138 11 0 0 23 0 1 0 19160766 104910848 24567 1992294400 134512640 136485738 4286751728 18446744073709551615 135856898 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26954/statm: 25613 24567 208 482 0 25129 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 102452

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

[startup+1.90148 s]
/proc/loadavg: 0.85 0.99 0.99 2/107 26955
/proc/meminfo: memFree=1832912/2059040 swapFree=4135652/4192956
[pid=26954] ppid=26952 vsize=99528 CPUtime=1.89
/proc/26954/stat : 26954 (pbct) R 26952 26954 25934 0 -1 4202496 27709 0 0 0 178 11 0 0 25 0 1 0 19160766 101916672 24070 1992294400 134512640 136485738 4286751728 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26954/statm: 24882 24070 242 482 0 24398 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 99528

[startup+2.10151 s]
/proc/loadavg: 0.85 0.99 0.99 2/107 26955
/proc/meminfo: memFree=1776740/2059040 swapFree=4135652/4192956
[pid=26954] ppid=26952 vsize=93424 CPUtime=2.1
/proc/26954/stat : 26954 (pbct) R 26952 26954 25934 0 -1 4202496 27709 0 0 0 199 11 0 0 25 0 1 0 19160766 95666176 23054 1992294400 134512640 136485738 4286751728 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26954/statm: 23356 23054 242 482 0 22872 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 93424

Child status: 0
Real time (s): 2.15077
CPU time (s): 2.14967
CPU user time (s): 2.02369
CPU system time (s): 0.12598
CPU usage (%): 99.9489
Max. virtual memory (cumulated for all children) (KiB): 104836

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.02369
system time used= 0.12598
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 27710
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 0.004999 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-13 15:26:08
IDJOB=2669143
IDBENCH=1499
IDSOLVER=1170
FILE ID=node002/2669143-1276435568
PBS_JOBID= 11173318
Free space on /tmp= 62396 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/www.ps.uni-sb.de/~walser/benchmarks/ppp-problems/normalized-ppp:1-12,16.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669143-1276435568/watcher-2669143-1276435568 -o /tmp/evaluation-result-2669143-1276435568/solver-2669143-1276435568 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669143-1276435568.opb

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

MD5SUM BENCH= 6441cbb759000c1a64397279f4b3f0ed
RANDOM SEED=559876266

node002.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1873624 kB
Buffers:         20144 kB
Cached:          89036 kB
SwapCached:       9840 kB
Active:          20056 kB
Inactive:       101052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1873624 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:            3308 kB
Writeback:           8 kB
AnonPages:       10696 kB
Mapped:           9120 kB
Slab:            42436 kB
PageTables:       3924 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179836 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= 62396 MiB
End job on node002 at 2010-06-13 15:26:10