Trace number 431483

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, and are wall clock time (not CPU 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
sat4jPseudoCP 2007-03-23OPT3 1.3298 0.885639

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=8-P0=5-P1=173-B.opb
MD5SUM609fd3fd526fa8a31f1afd652f2737ea
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.023995
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables24
Total number of constraints3
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3
Minimum length of a constraint8
Maximum length of a constraint72
Number of terms in the objective function 8
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 255
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 32768
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 130402
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)64
Sum of products size (including duplicates)128
Number of different products64
Sum of products size128

Solver Data (download as text)

0.09/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.09/0.14	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.09/0.14	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.09/0.15	c no version file found!!!
0.09/0.15	c sun.arch.data.model	32
0.09/0.15	c java.version	1.6.0
0.09/0.15	c os.name	Linux
0.09/0.15	c os.version	2.6.9-22.EL.rootsmp
0.09/0.15	c os.arch	i386
0.09/0.15	c Free memory 1651659224
0.09/0.15	c Max memory 1654456320
0.09/0.15	c Total memory 1654456320
0.09/0.15	c Number of processors 2
0.09/0.19	c Cutting planes based inference (org.sat4j.minisat.constraints.pb.PBSolver)
0.09/0.19	--- Begin Solver configuration ---
0.09/0.19	c Stops conflict analysis at the first Unique Implication Point
0.09/0.19	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@691f36
0.09/0.19	c Learn all clauses as in MiniSAT
0.09/0.19	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=10000.0 initConflictBound=100 
0.09/0.19	c VSIDS like heuristics from MiniSAT using a heap
0.09/0.19	c No reason simplification
0.09/0.19	c --- End Solver configuration ---
0.09/0.19	c solving /tmp/evaluation/431483-1178006826/instance-431483-1178006826.opb
0.09/0.19	c reading problem ... 
0.21/0.24	c ... done. Wall clock time 0.048s.
0.21/0.24	c CPU time (experimental) 0.21s.
0.21/0.24	c #vars     88
0.21/0.24	c #constraints  132
1.05/0.72	c SATISFIABLE
1.05/0.72	c OPTIMIZING...
1.05/0.72	c Got one! Elapsed wall clock time (in seconds):0.522
1.05/0.72	o 3
1.22/0.83	c starts		: 2
1.22/0.83	c conflicts		: 33
1.22/0.83	c decisions		: 46
1.22/0.83	c propagations		: 398
1.22/0.83	c inspects		: 1651
1.22/0.83	c learnt literals	: 0
1.22/0.83	c learnt binary clauses	: 0
1.22/0.83	c learnt ternary clauses	: 0
1.22/0.83	c learnt clauses	: 32
1.22/0.83	c root simplifications	: 0
1.22/0.83	c removed literals (reason simplification)	: 0
1.22/0.83	c reason swapping (by a shorter reason)	: 0
1.22/0.83	c Calls to reduceDB	: 0
1.22/0.83	c speed (decisions/second)	: 410.7142857142857
1.22/0.83	c non guided choices	4
1.22/0.83	s OPTIMUM FOUND
1.22/0.83	v x1 x2 -x3 -x4 -x5 -x6 -x7 -x8 x9 x10 -x11 x12 -x13 -x14 x15 x16 -x17 x18 -x19 -x20 -x21 -x22 -x23 -x24 x25 x26 -x27 -x28 -x29 -x30
1.22/0.83	v -x31 -x32 x33 x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 x49 x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57
1.22/0.83	v -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 x73 x74 -x75 -x76 -x77 -x78 -x79 -x80 x81 x82 -x83 -x84
1.22/0.83	v -x85 -x86 -x87 -x88
1.22/0.83	c objective function=3
1.22/0.83	c Total wall clock time (ms): 0.636

Verifier Data (download as text)

OK	3

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node7/watcher-431483-1178006826 -o ROOT/results/node7/solver-431483-1178006826 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431483-1178006826/sat4jPseudoCP.jar /tmp/evaluation/431483-1178006826/instance-431483-1178006826.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.78 0.95 0.98 2/77 3239
/proc/meminfo: memFree=1784760/2055920 swapFree=4157044/4192956
[pid=3239] ppid=3237 vsize=152 CPUtime=0
/proc/3239/stat : 3239 (java) R 3237 3239 3174 0 -1 0 40 0 0 0 0 0 0 0 18 0 1 0 276720281 155648 26 18446744073709551615 134512640 134550740 4294956608 18446744073709551615 10416427 0 0 4096 0 0 0 0 17 1 0 0
/proc/3239/statm: 38 26 19 9 0 4 0

[startup+0.0600731 s]
/proc/loadavg: 0.78 0.95 0.98 2/77 3239
/proc/meminfo: memFree=1784760/2055920 swapFree=4157044/4192956
[pid=3239] ppid=3237 vsize=1777708 CPUtime=0.04
/proc/3239/stat : 3239 (java) S 3237 3239 3174 0 -1 0 3599 0 1 0 2 2 0 0 18 0 7 0 276720281 1820372992 3343 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 1 0 0
/proc/3239/statm: 444427 3343 1069 9 0 442063 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1777708

[startup+0.101075 s]
/proc/loadavg: 0.78 0.95 0.98 2/77 3239
/proc/meminfo: memFree=1784760/2055920 swapFree=4157044/4192956
[pid=3239] ppid=3237 vsize=1780108 CPUtime=0.09
/proc/3239/stat : 3239 (java) S 3237 3239 3174 0 -1 0 3968 0 1 0 6 3 0 0 18 0 12 0 276720281 1822830592 3711 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/3239/statm: 445027 3711 1122 9 0 442646 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1780108

[startup+0.301096 s]
/proc/loadavg: 0.78 0.95 0.98 2/77 3239
/proc/meminfo: memFree=1784760/2055920 swapFree=4157044/4192956
[pid=3239] ppid=3237 vsize=1781532 CPUtime=0.34
/proc/3239/stat : 3239 (java) S 3237 3239 3174 0 -1 0 5131 0 1 0 30 4 0 0 18 0 13 0 276720281 1824288768 4871 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/3239/statm: 445383 4871 1278 9 0 442995 0
Current children cumulated CPU time (s) 0.34
Current children cumulated vsize (KiB) 1781532

[startup+0.701139 s]
/proc/loadavg: 0.78 0.95 0.98 2/77 3239
/proc/meminfo: memFree=1784760/2055920 swapFree=4157044/4192956
[pid=3239] ppid=3237 vsize=1785104 CPUtime=1.05
/proc/3239/stat : 3239 (java) S 3237 3239 3174 0 -1 0 10084 0 1 0 99 6 0 0 18 0 13 0 276720281 1827946496 8541 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/3239/statm: 446276 8542 1293 9 0 443888 0
Current children cumulated CPU time (s) 1.05
Current children cumulated vsize (KiB) 1785104

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

[startup+0.801151 s]
/proc/loadavg: 0.78 0.95 0.98 2/77 3239
/proc/meminfo: memFree=1784760/2055920 swapFree=4157044/4192956
[pid=3239] ppid=3237 vsize=1786252 CPUtime=1.22
/proc/3239/stat : 3239 (java) S 3237 3239 3174 0 -1 0 12034 0 1 0 115 7 0 0 18 0 13 0 276720281 1829122048 10133 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/3239/statm: 446563 10133 1297 9 0 444175 0
Current children cumulated CPU time (s) 1.22
Current children cumulated vsize (KiB) 1786252

Child status: 30
Real time (s): 0.885639
CPU time (s): 1.3298
CPU user time (s): 1.24781
CPU system time (s): 0.081987
CPU usage (%): 150.151
Max. virtual memory (cumulated for all children) (KiB): 1786252

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.24781
system time used= 0.081987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12778
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 348
involuntary context switches= 279

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Tue May  1 08:07:07 UTC 2007

IDJOB= 431483
IDBENCH= 48055
IDSOLVER= 160
FILE ID= node7/431483-1178006826

PBS_JOBID= 4728318

Free space on /tmp= 66561 MiB

SOLVER NAME= sat4jPseudoCP 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=8-P0=5-P1=173-B.opb
COMMAND LINE= java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431483-1178006826/sat4jPseudoCP.jar /tmp/evaluation/431483-1178006826/instance-431483-1178006826.opb       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-431483-1178006826 -o ROOT/results/node7/solver-431483-1178006826 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431483-1178006826/sat4jPseudoCP.jar /tmp/evaluation/431483-1178006826/instance-431483-1178006826.opb       

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  609fd3fd526fa8a31f1afd652f2737ea

RANDOM SEED= 440588377

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.231
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.231
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1785168 kB
Buffers:         39880 kB
Cached:         142928 kB
SwapCached:      15548 kB
Active:          68936 kB
Inactive:       136548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1785168 kB
SwapTotal:     4192956 kB
SwapFree:      4157044 kB
Dirty:            3788 kB
Writeback:           0 kB
Mapped:          29644 kB
Slab:            50756 kB
Committed_AS:  9067544 kB
PageTables:       1860 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66561 MiB

End job on node7 on Tue May  1 08:07:08 UTC 2007