Trace number 2682034

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 0.1 fixed? (MO) 34.3038 34.5303

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/
normalized-ooo.ex.mem.LsqHdStrong.ucl.opb
MD5SUM3764cf8f4e2d3654f46ab0ec56ea8581
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables168111
Total number of constraints487525
Number of constraints which are clauses468727
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints18798
Minimum length of a constraint1
Maximum length of a constraint15
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 130
Number of bits of the biggest number in a constraint 8
Biggest sum of numbers in a constraint 512
Number of bits of the biggest sum of numbers10
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.01	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.01	c Based on OpenSMT/CT 20091015
16.19/16.20	c constraints 18798/0 clauses 457942/0 units 3704
16.19/16.20	c vars 168111
34.11/34.34	s UNKNOWN

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-2682034-1277476371/watcher-2682034-1277476371 -o /tmp/evaluation-result-2682034-1277476371/solver-2682034-1277476371 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682034-1277476371.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: 1.04 0.92 0.53 3/106 27847
/proc/meminfo: memFree=1792356/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=2136 CPUtime=0
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 246 0 0 0 0 0 0 0 19 0 1 0 88929818 2187264 165 1992294400 134512640 136421960 4288291728 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 534 165 144 467 0 65 0

[startup+0.0931389 s]
/proc/loadavg: 1.04 0.92 0.53 3/106 27847
/proc/meminfo: memFree=1792356/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=2400 CPUtime=0.08
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 322 0 0 0 8 0 0 0 19 0 1 0 88929818 2457600 241 1992294400 134512640 136421960 4288291728 18446744073709551615 135160263 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 600 241 144 467 0 131 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2400

[startup+0.101138 s]
/proc/loadavg: 1.04 0.92 0.53 3/106 27847
/proc/meminfo: memFree=1792356/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=2400 CPUtime=0.09
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 328 0 0 0 9 0 0 0 19 0 1 0 88929818 2457600 247 1992294400 134512640 136421960 4288291728 18446744073709551615 135160402 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 600 247 144 467 0 131 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2400

[startup+0.301156 s]
/proc/loadavg: 1.04 0.92 0.53 3/106 27847
/proc/meminfo: memFree=1792356/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=3192 CPUtime=0.29
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 511 0 0 0 29 0 0 0 20 0 1 0 88929818 3268608 430 1992294400 134512640 136421960 4288291728 18446744073709551615 135408518 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 798 430 144 467 0 329 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3192

[startup+0.701191 s]
/proc/loadavg: 1.04 0.92 0.53 3/106 27847
/proc/meminfo: memFree=1792356/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=4896 CPUtime=0.69
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 971 0 0 0 69 0 0 0 20 0 1 0 88929818 5013504 792 1992294400 134512640 136421960 4288291728 18446744073709551615 135162799 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 1224 792 144 467 0 755 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4896

[startup+1.50126 s]
/proc/loadavg: 1.04 0.92 0.53 2/107 27848
/proc/meminfo: memFree=1788628/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=7916 CPUtime=1.49
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 1823 0 0 0 148 1 0 0 22 0 1 0 88929818 8105984 1515 1992294400 134512640 136421960 4288291728 18446744073709551615 135380571 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 1979 1515 144 467 0 1510 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7916

[startup+3.1004 s]
/proc/loadavg: 1.04 0.92 0.53 2/107 27848
/proc/meminfo: memFree=1783668/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=14088 CPUtime=3.09
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 3525 0 0 0 307 2 0 0 25 0 1 0 88929818 14426112 2960 1992294400 134512640 136421960 4288291728 18446744073709551615 134552860 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 3522 2960 144 467 0 3053 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14088

[startup+6.30068 s]
/proc/loadavg: 1.04 0.92 0.53 2/107 27848
/proc/meminfo: memFree=1754280/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=39640 CPUtime=6.29
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 10057 0 0 0 624 5 0 0 25 0 1 0 88929818 40591360 9492 1992294400 134512640 136421960 4288291728 18446744073709551615 134539157 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 9910 9492 146 467 0 9441 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 39640

[startup+12.7012 s]
/proc/loadavg: 1.03 0.92 0.54 2/107 27848
/proc/meminfo: memFree=1754404/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=39640 CPUtime=12.69
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 10063 0 0 0 1264 5 0 0 25 0 1 0 88929818 40591360 9498 1992294400 134512640 136421960 4288291728 18446744073709551615 134544409 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27847/statm: 9910 9498 146 467 0 9441 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 39640

[startup+25.5014 s]
/proc/loadavg: 1.03 0.92 0.54 2/107 27848
/proc/meminfo: memFree=924224/2059040 swapFree=4140412/4192956
[pid=27847] ppid=27845 vsize=919096 CPUtime=25.48
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 245653 0 0 0 2435 113 0 0 25 0 1 0 88929818 941154304 221437 1992294400 134512640 136421960 4288291728 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/27847/statm: 229774 221437 193 467 0 229305 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 919096



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.3061 s]
/proc/loadavg: 1.02 0.92 0.55 3/107 27848
/proc/meminfo: memFree=7880/2059040 swapFree=4139448/4192956
[pid=27847] ppid=27845 vsize=1857136 CPUtime=34.11
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4202496 492734 0 0 0 3191 220 0 0 18 0 1 0 88929818 1901707264 462625 1992294400 134512640 136421960 4288291728 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 20
/proc/27847/statm: 464284 462630 194 467 0 463815 0
Current children cumulated CPU time (s) 34.11
Current children cumulated vsize (KiB) 1857136

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+34.5011 s]
/proc/loadavg: 1.02 0.92 0.55 3/107 27848
/proc/meminfo: memFree=7880/2059040 swapFree=4139448/4192956
[pid=27847] ppid=27845 vsize=0 CPUtime=34.27
/proc/27847/stat : 27847 (pbct) R 27845 27847 27421 0 -1 4194308 492776 0 0 0 3191 236 0 0 18 0 1 0 88929818 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 20
/proc/27847/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.27
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 34.5303
CPU time (s): 34.3038
CPU user time (s): 31.9131
CPU system time (s): 2.39064
CPU usage (%): 99.344
Max. virtual memory (cumulated for all children) (KiB): 1857136

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.9131
system time used= 2.39064
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 492776
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= 5
involuntary context switches= 52

runsolver used 0.058991 second user time and 0.201969 second system time

The end

Launcher Data 

Begin job on node041 at 2010-06-25 16:32:52
IDJOB=2682034
IDBENCH=1447
IDSOLVER=1192
FILE ID=node041/2682034-1277476371
PBS_JOBID= 11190504
Free space on /tmp= 61660 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-ooo.ex.mem.LsqHdStrong.ucl.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682034-1277476371/watcher-2682034-1277476371 -o /tmp/evaluation-result-2682034-1277476371/solver-2682034-1277476371 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682034-1277476371.opb

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

MD5SUM BENCH= 3764cf8f4e2d3654f46ab0ec56ea8581
RANDOM SEED=428153474

node041.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		: 3000.251
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	: 6000.50
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		: 3000.251
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	: 5599.48
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1792876 kB
Buffers:         35964 kB
Cached:         132808 kB
SwapCached:       5276 kB
Active:          84188 kB
Inactive:        97452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1792876 kB
SwapTotal:     4192956 kB
SwapFree:      4140412 kB
Dirty:           18976 kB
Writeback:           0 kB
AnonPages:       11520 kB
Mapped:          11960 kB
Slab:            62556 kB
PageTables:       4176 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182640 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= 61656 MiB
End job on node041 at 2010-06-25 16:33:28